RI 100 Manual

User Manual: RI 100

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RI-100

Owner’s Manual

RI-100 | Version 1

All rights reserved. No part
of this publication may be
reproduced, stored in or
introduced into a retrieval
system, or transmitted in
any form, or by any means
(electronic, mechanical,
photocopying, recording
or otherwise) without the
prior written permission of
Vitus Audio. Any person who
does any unauthorized act
in relation to this publication
may be liable to criminal
prosecution and civil claims for
damages.
Information contained in this
manual is subject to change
without notice, and whilst it
is checked for accuracy, no
liabilities can be accepted for
errors.

RI-100 | Version 1

table of contents
on a personal note

3. operation

Certificate . . . . . . . . . . . . . 6

Operation modes . . . . . . . .
Functions – left front panel . . .
Functions – right front panel . .
The menu structure . . . . . . .
Discription of the elements
in the menu. . . . . . . . .
The menu structure . . . . . . .

from the creator
Foreword . . . . . . . . . . . . . 7

introduction
About this manual . . . . . . . . 8
Introduction to the Reference Series. . . . . . . . . . . . . . . . . 8

1. getting started
Unpacking the box. . . . . . . . 10
What’s in the box. . . . . . . . . 10
Device overview . . . . . . . . . 11
The topology of the volume control. . . . . . . . . . . . . . . . . 12

7. examples operation
16
18
19
20
22
23

4. operation & service
Safety notice . . . . . . . . . . . 24
Mains supply voltage . . . . . . 24
Maintenance . . . . . . . . . . . 24
Mains fuse . . . . . . . . . . . . 25
Replacing a blown fuse . . . . . 26

5. warranty
Warranty . . . . . . . . . . . . . 28

2. connecting

6. specifications

Turning the RI-100 on and off.. . 13
RI-100 rear panel. . . . . . . . . 14
Connecting the RI-100. . . . . . 14

RI-100 Specifications. . . . . . . 31
Load values of the RIAA Module..32

RI-100 | Version 1

Example 1 . . . . . . . . . . . . 33
Example 2 . . . . . . . . . . . . 34
Example 3 . . . . . . . . . . . . 35
Example 4 . . . . . . . . . . . . 36
Example 5 . . . . . . . . . . . . 37
Example 6 . . . . . . . . . . . . 38
Example 7 . . . . . . . . . . . . 39
Example 8 . . . . . . . . . . . . 40
Example 9. . . . . . . . . . . . . 41
Example 10 . . . . . . . . . . . . 42
Example 11 . . . . . . . . . . . . 43
Example 12 . . . . . . . . . . . . 44
Example 13. . . . . . . . . . . . 45

7. examples connecting
devices
Connecting devices . . . . . . . 46
Connecting devices 1 . . . . . . 47
Connecting devices 2 . . . . . . 48
Connecting devices 3 . . . . . . 49

8. pictures
RI-100 Inside view . . . . . . . . 50
RI-100 Front. . . . . . . . . . . . 51

on a personal note
Certificate
Model: RI-100
Product ID/Serial
__________________________________
Product Build Date
__________________________________
Signed
__________________________________

All products details, specifications and
measurements are recorded for your RI-100
and kept by Vitus Audio.

RI-100 | Version 1

from the creator
Foreword
First of all, thank you for
choosing the Vitus Audio
RI-100 integrated amplifier,
we are sure you will enjoy it
for many years to come. When
purchasing a Vitus Audio
product, you are guaranteed a
musical performance,
which exceeds the current
musical standards. Vitus
Audio is dedicated to musical
performance rather than
technical details and high
performance measures.
We believe that many
manufactures are blinded by
the current available theory,
instead of looking for new
answers.

At Vitus Audio everything
works until proven not to.
This way we always try to
push the limits and explore
the unexplored. As a result
of this, many of the solutions
we use today are considered
to be “impossible to ever
get working”,however they
have convinced many people
and reviewers world wide
of the opposite. Before any
of our new topologies are
implemented in our products,
they are carefully reviewed by
our dedicated listening panel.
This way we can guarantee
the correct level of musically
performance and robustness.

Generally we’re after super
neutral, super detailed and
super dynamic reproduction
without “loosing” the nerve
in the music which often is
a drawback of many high
end amplifiers. Our real
strongholds are complete
silence, unbelievable depth
and width in the soundstage
resulting in a far more open
sound with higher resolution
-you could say, closer to the
artist. As a result of the above,
our amps do not “focus” on
any specific frequencies - i.e.
no extension of top or bas,
which of course results in high
clarity of the midrange since
it’s “naturally present”!

RI-100 | Version 1

Hans Ole Vitus

introduction
About this manual

Introduction to the
Reference Series

This is your RI-100 owner’s
manual. The following pages
will describe, as clearly as
possible, how to get your RI100 operating fast and simple.
Although some operations are
self-explanatory, we strongly
suggest you read this manual
to avoid any damage to the
unit. The manual is designed
to be helpful. If there are
points you feel we could cover
better, or that we have missed
out – please tell us.

The Vitus Audio Reference
Series is a true high-end series
of products, which is build on
our true dedication to neutral
music reproduction. Every
detail is carefully thought
through, and all choices made
during development, where
based purely on listening, and
not measuring. Only the best
available materials are used to
ensure an overall quality which
will last for many years, when
treated right.

Important
information is
presented like
this. Ignoring this
information may cause
damage to you or the
unit. Damage coused
to the unit by ignoring
this information might
invalidate the warranty.



RI-100 | Version 1

introduction



This amplifier is
VERY heavy –
make sure to be
at least two people to
unpack the unit. You
might damage both
your back and the
amplifier if extra care
is not applied. Vitus
Audio A/S cannot
be held responsible
for any damage that
is a consequence of
uncareful handling of
the unit.

RI-100 | Version 1

1. getting started
Unpacking the box
After you have opened the
top, it is possible to remove
the top protective foam which
gives you direct access to the
amplifier. In the top you will
find the remote, the power
cord and brochures. Now
remove the side protective
foam, this will make it easier
to grab hold of the RI-100.
Two people carefully lift the
amplifier out of the box, and
put it directly onto the floor.
Store the empty box and the
protective foam for later use.

Foam top 1
Brochure
Mac Remote
Manual

Power Cable
Foam top 2
Foam Sides
6 pieces

RI-100

What’s in the box

Foam bottom

Foam top 1
Vitus Audio Brochure
RI-100 Manual
Mac Remote
Power Cable
Foam top 2
Foam Sides 6 pieces
RI-100
Foam bottom
Box

Box

Figure 1 Box exploded view

RI-100 | Version 1

1. getting started

165 mm

180 mm

Device overview

Front panel: Anodized Aluminium
435 mm

Body: Powder coated Aluminium
Total weight: 40 KG

435 mm
35 mm

Figure 2 Device overview

RI-100 | Version 1

1. getting started
The topology of the
volume control.
The topology of the volume
control used in the RI-100 is
very different compared to the
“standard”. The RI-100 uses a
series of fixed resistor networks
to control the volume. Relays
are used to switch between the
resistor networks. Across all
volume steps, a fixed resistor
is in series with the signal
path. This gives the best performance possible. When you
change volume, a different
number of shunt resistors are
used.

To prevent pop in the output,
we have chosen to first add
the new shunt resistors, and
then wait a short time, before
removing the unused shunt
resistors at the new volume
step. This will give a minor fall
in volume before settling at
the new volume step. It takes
only very little time to get
used to this type of operation
of the volume, and it will give
you superior sound quality
over the traditional digital and
analogue potentiometers.

RI-100 | Version 1

2. connecting

Turning the RI-100 on and off.
Always turn on the products beginning from the source:

CD player a pre-amplifier a power amplifier.
Always turn off your products in reverse order:

Power amplifier a pre-amplifier a CD player.



Not following this procedure,
may cause damage to any of
your products/speakers.
Damage caused to any of your
products/speakers by not following
this procedure will invalidate the warranty.

RI-100 | Version 1

2. connecting
RI-100 rear panel

Connecting the RI-100

Outputs
Speaker left

Speaker out

Speaker right

Speaker out

Ground/Earth

Ground

Preout. XLR

XLR out

Optional Headamp

XLR out
Jack

Inputs.
Input 1,2,3. XLR

XLR in

Input 4,5.

RCA

RIAA (optional ) Input 5

RCA

Power

Optional DAC interface

XLR in
USB b (male)

Place the RI-100 on its shelf.
Connect all the sources to the
inputs of the RI-100, (labelled
INPUT 1 to 5 on the rear
panel.)
Connect the Speaker output of
the RI-100. Carefully connect
the mains to the amplifier,
after you have connected both
inputs and outputs.
This is a true balanced
amplifier, DO NOT connect
the ” “output (Figure 3) to
any ground source, including
chassis or signal ground, this
will damage the amplifier.

The pre-out connectors can be
connected to a power amplifier
for biamping or an active sub.

Figure 3 ”

-“output

Figure 4 Plugs

RI-100 | Version 1

Input 1

Input 2

Input 3

PUSH

Input 3

Input 2

Input 1

PUSH

2. connecting

GND / EARTH

NEUTRIK

Caution

This is a true balanced
poweramplifier. DO NOT
under any circumstance
connect (-) speaker output
to ground.

NEUTRIK

Caution

Use this connection with care
Connecting it to other units
with impropper GND may
damage this unit. Such
damage will not be covered
by warranty!

Input 4

Input 5 / RIAA

Preout

Input 5 / RIAA

This is a true balanced
poweramplifier. DO NOT
under any circumstance
connect (-) speaker output
to ground.

Input 4

MAINS
Optional DAC interface

Optional Headamp interface

Figure 5 RI-100 Rear panel.

RI-100 | Version 1

XLR in

Speaker out

RCA

Jack

XLR out

Power

Ground

USB b (male)

XLR in

Fuse

3. operation
Operation modes

Figure 6 RI-100 Front panel.

RI-100 | Version 1

3. operation
3 Operation modes
The RI-100 has 3
operation modes
3. operation

1.Normal mode.

This is the mode you use when
listening to music.

2. Menu mode

In this mode you can alter the
settings of the RI-100.

3. Standby mode.

In this mode the controls of
the RI-100 are deactivated.
The RI-100 does not shut down
in Standby Mode in order to
maintain an optimal working
temperature

RI-100 | Version 1

3. operation
Functions – left front panel

Figure 7 RI-100 Left front panel.

Normal mode

Menu mode

In normal mode there are
3 basic functions/buttons
available on the left front.

You enter menu mode, by
pushing the ”MENU” button
once in Normal mode. In the
Menu mode there are 3 basic
functions/buttons:

1. INPUT

2. MENU

Selects between
the 5 inputs.
Switches to
“Menu mode”.

3. STANDBY Switches in and
out of
“Standby Mode”



Scroll forward in the
menu.

2. MENU/ Enter & Exit
SELECT submenus and
selectsettings.
3.



Scroll backward in the
menu.

RI-100 | Version 1

3. operation

Functions – right front panel

Figure 8 RI-100 Right front panel.

RI-100 | Version 1

Normal mode

Menu mode

In normal mode there are
3 basic functions/buttons
available on the right front:

In the text-menu it is possible
to change the name of the
input. This is done by using
the following buttons from the
right front:

1. 

Turns volume UP.



Change selected
character.

2. MUTE Mutes the output.

2. MUTE Go to the next
character
in the display.

3. 

Turns volume DOWN.



Change selected
character.

3. operation
The menu structure

Input settings

You can modify the settings
of the RI-100. You do this by
entering the menu. On page
23 you can find a graphical
reproduction of the menu.
The sub-menus are indicated
with a colour.OUTPUT RESET
REMOTE, V.INIT and INPUTS
In the Appendix ( chapter 7
of the manual ) you can find
various examples of how to
change the settings of the
RI-100.

The RI-100 comes with 5
inputs. The settings for
each individual input can
be adjusted in the menu.
The input selection is saved
automatically every 10 minutes.
Each time you initialize the
RI-100, the last saved setting
is restored. You can manually
save a setting by pressing the
MENU button down 2-3 sec.
When “SAVE” is shown in the
display, the setting has been
saved.

Selecting output

Input name settings

This option is only available
when you have the optional
headamp interface module
installed in the RI-100.
Here you can switch
output from SPEAKERS to
HEADPHONES.

Reset

Restore the settings of the RI-100
to its default settings.

As a standard, the inputs are
named input 1, input 2, etc. In
the text-menu you can find a
list of predefined input names.
If the name of your device is
not in the list, you can choose
to make your own device
name.

have different output voltages.
This has a direct influence
on the typical volume level
that is needed for a specific
sound level, hence changing
between sources can result in
high sound level differences.
To accommodate easy
operation, we have included
a gain (or as some prefer to
call it – sensitivity setting) in
our amplifiers – it simply sets
the volume starting point at a
specific volume – to match the
source. The offset-value can be
set from - 12 dB to +12 dB.

Disabling inputs

If you only use some of the
inputs, it is possible to disable
the inputs that are
not used. Using the “Input”
button, the system skips the
disabled inputs, and jumps to
the next input.

Input gain settings

Offset gain setting / Sensitivity
setting. Different sources often

RI-100 | Version 1

3. operation
The RI-100 is standard shipped
with a Apple Remote.
The Apple remote that
comes with the RI-100 can
be used on all Reference
devices. If you own two (or
more) reference devices than
it is recommended that you
pair the remote(s) with their
devices.

RI-100 | Version 1

Volume settings

The RI-100 starts up in
the same volume step on
initialization. You can select
in which volume step, the RI100 should initialize. You can
set the initial volume step in
the menu, to a step between
-99.0dB and +6dB.
You can also set the initial
volume-step to “REMEMBER”.
When you set the RI-100
to “REMEMBER”, then it
remembers the volume step
from when it was put to
standby. Next time the RI-100
leaves standby, it will start in
this volume step.

3. operation

Remote settings

3. operation
Discription of the
elements in the
menu.
OUTPUT

Change between speaker and
headphone output.

V.INIT

Change the initial dB step of the
volume in the RI-100 to any step
between -99 and12.dB

VOL.STEP

Shows information about this
RI-100.

The RI-100 has a standard volume
step of -42 dB. You can set the
volume step to a step, between
-99.0 dB to +6dB.This step will be
the new volume step. Even when
after the power cord has been
disconnected the RI-100 still starts
up in the new volume step.

RESET

REMEMBER

SETUP

Change the settings of the RI-100.

DATA

Show the ID of the remote.

Set the RI-100 to remember the
current volume step. The RI-100
will start up in this volume step
when it leaves standby. This
volume step however is not
remembered when the power
cord is removed. Then the RI-100
will initiate in the volume step as it
is defined in the V.INIT sub-menu.

NO PAIR

BRIGHT

Restore the settings of the RI-100
to its default settings.

REMOTE

Change the settings of the Apple
Remote.

REMOTE ID

Un-pair the remote and the RI-100
by removing the REMOTE ID

Change the brightness of the
display any step between 0 and 3.

INPUTS

INPUT X

Change the settings of input X.

USED

Select whether input X has to be
USED or not NOT USED.When
you select NOT USED input X will
not be shown in the list of inputs.

TEXT

Choose a name for input X.

OFFSET

Select an offset- gain, between
-12 and 12 dB, for input X.

SET FIX

Set the volume of input X to a
fixed dB step. (Input X is now
locked to a dB step and can not
be adjusted with the volume
control)

FIXED

Lock and unlock the volume by
switching between FIX ON/FIX
OFF.

ADJUST

Adjust the fixed dB step to any
step between -99 and +12 dB

Change settings for each input.

RI-100 | Version 1

3. operation
LEAVE
LOAD
SETUP

The menu structure
SEE THE LIST WITH LOAD RESISTANCES
BACK
DATA
RESET
REMOTE

RESET NO / RESET YES

3. operation

BACK
REMOTE ID
UNPAIR

V.INIT

VOL.STEP

-99 dB / +6 dB

REMEMBER
BACK

OUTPUT

Figure 9 The RI-100 Menu strukture

RI-100 | Version 1

BRIGHT

0/3

INPUTS

BACK

HEADPHONES

INPUT 1

BACK

SPEAKERS

INPUT 2

USED

INPUT 3

TEXT

INPUT 4

OFFSET

INPUT 5

FIXED

USED / NOT USED

-12 dB / +12 dB
SET FIX

FIX ON / FIX OFF

ADJUST

-99 dB / +12 dB

BACK

4. operation & service
Safety notice

Maintenance

The Vitus Audio RI-100
contains no user serviceable
parts except from the mains
fuse. Do not attempt to open
the case. There are potentially
dangerous voltages present
inside. Should your RI-100
show signs of malfunction,
then please contact your
dealer or Vitus Audio.

Vitus Audio products are
designed to run for many years
without the need for regular
maintenance. Our products
contain no user serviceable
parts except from the mains
fuse. Should your RI-100 show
signs of malfunction, please
contact your dealer or Vitus
Audio.

Mains supply voltage
Any unit may be set for
operation in 100V, 115V or
230V A.C. Units are shipped
set for the mains supply
voltage according to the
destination. The voltage
setting can be updated later
by your dealer, if necessary.

RI-100 | Version 1

Mains fuse

Fuse type:

The mains fuse is accessible
from the outside of the
amplifier. You will find the
mains fuse, just below the
power inlet. If the fuse blows,
then you can easily replace
it. The fuse only blows on the
occurrence of power surges
or if there is a fault in the
unit. Normally power surges
cause no other damage other
than blowing the fuse. When
the fuse blows repeatedly on
replacement, then the unit
most likely has a malfunction.
In case of malfunction the
unit must be returned to Vitus
Audio for repair.

20x5mm 6,3A T(230V) /
10A T(115V) / 12A T(100V)
HRC fuse
Replacing the fuse with a fuse
of a type and rating different
from the original fuse, might
result in damage to the unit
and injury to you (the user).
Damage to the unit as a result
of wrongly replacing the
mains fuse, will invalidate the
guarantee.
For an explanation of how to
replace the fuse see chapter 4
“replacing a blown fuse”.

4. operation &
service

4. operation & service

4. operation & service
Replacing a blown
fuse



REMOVE THE POWER CABLE

In the following steps we will
show you how to replace a
blown fuse.

1 The fuse carrier is placed
on the back under the power
connector

2 Loosen the fuse carrier.
Using a flat object for example
a flat screwdriver.

blown fuse
spare fuse

the fuse carrier

3 Pull the fuse carrier out.

4 There is a spare fuse
available in the fuse carrier.

5 Take the blown fuse out of
the fuse carrier and throw it
away.

Figure 10 Replacing a blown fuse

RI-100 | Version 1

4. operation & service

7 Place the spare fuse in the
fuse carrier and click the fuse
in place.

4. operation &
service

6 Flip the spare fuse out using
a pointy object..

9 Push the fuse carrier back
into the machine.

RI-100 | Version 1

5. warranty
Warranty
Warranty Statement
(modified to fit Vitus Audio)
1. TERMS AND CONDITIONS
LIMITED WARRANTY
Vitus Audio warrants the
product designated herein
to be free of manufacturing
defects in material and
workmanship, subject to the
conditions hereinafter set
forth, for a period of three
(3) years from the date of
purchase by the original
purchaser or no later than
five (5) years from the date of
shipment to the authorized
Vitus Audio cooperating
partner, whichever comes first,
excepting
any cosmetic damage to
chassis parts. (See 6)
2. CONDITIONS
This Warranty is subject to
the following conditions and
limitations. The Warranty
is void and inapplicable
if the product has been
used or handled other than
in accordance with the
instructions in the owner’s

manual, abused, or misused,
damaged by accident
or neglect or in being
transported, or the defect
is due to the product being
repaired or tampered with by
anyone other than Vitus Audio
or authorized Vitus Audio
repair center. The product
must be packed in its original
box and returned to Vitus
Audio or an authorized repair
center by the customer at his
or her sole expense. Vitus
Audio will pay return freight of
its choice.
IMPORTANT!
A returned product MUST
be accompanied by a written
description of the defect
and a photocopy of the
original purchase receipt.
This receipt must clearly list
model and serial number,
date of purchase, the name
and address of the purchaser
and authorized dealer and the
price paid by the purchaser.
Vitus Audio reserves the right
to modify the design of any
product without obligation
to purchasers of previously
manufactured products
and to change the prices or

specifications of any product
without notice or obligation to
any person.
3. REMEDY
In the event the above
product fails to meet the
above Warranty and the above
conditions have been met, the
purchaser’s sole remedy under
this Limited Warranty shall be
to return the product to Vitus
Audio or an authorized Vitus
Audio repair center where the
defect will be rectified without
charge for parts and labor,
except chassis parts. (See 6)
4. LIMITED TO ORIGINAL
PURCHASER
This Warranty is for the
sole benefit of the original
purchaser of the covered
product and shall not be
transferred to a subsequent
purchaser of the product.
5. DURATION OF WARRANTY
This Warranty expires on the
third (3rd) year anniversary
of the date of purchase or
no later than the fifth (5th)
anniversary of the date of
shipment to the authorized
Vitus Audio cooperating

RI-100 | Version 1

5. warranty

6. CHASSIS
Damage or cosmetic defects
are not warranted.
7. DEMONSTRATION
EQUIPMENT
Equipment used by an
authorized cooperating
partner for demonstration
purposes is warranted to be
free of manufacturing defects
in materials and workmanship
for a period of three (3) years
from the date of shipment to
the authorized cooperating
partner. After the first year,
demo equipment needing
warranty service must be
packed in its original box
and returned to Vitus Audio
by the cooperating partner
at his or hers sole expense.
Vitus Audio will pay return
freight of its choice. A returned
product must be accompanied
by a written description
of the defect on a VITUS
AUDIO RETURNED GOODS
AUTHORIZATION form.
Dealer-owned demonstration
equipment sold at retail
within three (3) years of date
from shipment to the dealer

RI-100 | Version 1

is warranted to the first
retail customer to be free
of manufacturing defects in
materials and workmanship
for the duration of the three
(3) Year Limited Warranty
remaining (as measured
from the date of shipment of
the equipment to the Vitus
Audio partner. In the event
warranty service is needed
under these conditions, the
owner of the equipment
must provide a copy of his
purchase receipt, fulfilling the
requirements described under
”2. Conditions” above. The
product must be packed in its
original box, and returned to
Vitus Audio or an authorized
Vitus Audio repair center by
the customer at his or her sole
expense. Vitus Audio will pay
return freight of its choice.

implied warranty lasts or
exclusion or limitation of
incidental or consequential
damages, so the above
limitations or exclusions may
not apply to you. This warranty
gives you specific legal rights,
and you may also have other
rights which vary from country
to country.
9. WARRANTOR
Inquiries regarding the above
Limited Warranty may be sent
to the following
address:
AVA Group A/S
Sandgaardsvej 31, Birk
DK7400 Herning
Denmark
Att.: Customer Service

8. MISCELLANEOUS
Any implied warranties relating
to the above product shall be
limited to the duration of this
warranty. The warranty does
not extend to any incidental
or consequential costs or
damages to the purchaser.
Some countries do not allow
limitation on how long an

5. warranty

partner, whichever comes first.

5. warranty
10. WARRENTY OUTSIDE
DANMARK
Vitus Audio has authorized
distribution in many countries
in the world. In each country,
the authorized importing
retailer or distributor has
accepted the responsibility
for warranty of products sold
by that retailer or distributor.
Warranty service should
normally be obtained from the
importing retailer or distributor
from whom purchased your
product. In the unlikely
event of service required
beyond the capabilities of
the importer, Vitus Audio will
fulfill the conditions of the
warranty. Such products must
be returned at the owner’s
expense to the Vitus Audio
factory, together with a
photocopy of the bill of sale
for that product, a detailed
description of the problem,
and any other information
necessary return shipment. In
many cases the retailer your
purchased the product from,
will handle this for you.

11. FURTHER INFORMATION
Should you have any further
questions related to our
warranty – please contact us at
the following email:
info@vitusaudio.com

RI-100 | Version 1

6. specifications
RI-100 Specifications
Rated Output Power…….........................................2 x 300Wrms in 8 ohm Class AB
Frequency Respon..............................................................………....DC to +500KHz
Signal to Noise Ratio……………………..……...........................………..……> 100dB
THD+ Noise………………………...............………………………....Better than 0,01%
Input Sensitivity……................with volume set @ 0dB / RCA = 2, 6 / XLR 5,2V RMS
Input Impedance……..…....................………….………...RCA = 22KΩ / XLR = 22KΩ
Slew Rate…………………………...................…………………………...…....> 35V/ μs
Power Consumption (RMS):

Class AB (no load)………………………………....................…………………....~ 90W
Dimensions (W x H x D)……………………...................…………....435x195x435 mm
Weight………………………………………….....................……………………...~40Kg

RI-100 | Version 1

6. specifications

Standby…………………………………………………………..….....................….< 3W

Load values of the
RIAA Module.

Load
values
105 Ω

The RIAA module in the
RI-100 is designed for pickup
cartridges with an output of
ca 800 uVrms and a load value
between 105 Ω and 47 kΩ.

110 Ω

We recommend you to use the
RIAA module in the RI-100 with
cartridges that have an output
value higher than 500µVrms.

160 Ω

120 Ω
125 Ω
150 Ω
175 Ω
190 Ω
240 Ω
272 Ω
310 Ω
370 Ω
655 Ω
980 Ω
1.92 KΩ
47.0 KΩ

RI-100 | Version 1

7. examples operation
Example 1
Setting the
load impedance.
The RI-100 is standard set
to a load impedance of 110 Ω
In the example we will change
the settings of the RP-101 to
match the Cadenza Blue from
Ortofon. This is a MM pickup
with a load impedance of 50200 Ω.
Press the“MENU”button to
enter Menu Mode.
Navigate to the LOAD
submenu, using the function
buttons on the left front. Set
the load to 125 Ω
1.

 Scroll forward in the
menu.

2. MENU/ Enter & Exit
SELECT submenus and
selectsettings.
3.



INPUT
MENU

SELECT

RL-1

MUTE

STANDBY

Figure 7. RP-101 Left front panel.

SELECT

LEAVE
LOAD
O
O
O

SELECT

lOAD

You can eventually adjust the
load impedance by setting the
load impedance to 105 110, or
120 150 160 175 or 190 Ω (all
withing the range of the pickup
cartridge).

Scroll backward in
the menu.

RI-100 | Version 1

7. examples operation
Example 2
Changing output
from speakers to
headphone.
Only applies when the optional
headamp module is installled
in your RI-100.
Press the“MENU”button to
enter Menu Mode.
Navigate to the “OUTPUT”
submenu, using the function
buttons on the left front
1.



Scroll forward in
the menu.

Figure 7. RI-100 Left front panel.

LEAVE
SELECT

OUTPUT

SELECT

HEADPHONES
OUTPUT

Figure 11 Example 1 Changing output

2. MENU/ Enter & Exit
SELECT submenus and
select settings.
3.



Scroll backward
in the menu.

Enter the “MENU” submenu
and scroll down using the 
button. The display now shows
Output. Press the “SELECT”
button. The display now
shows HEADPHONES. Press
“SELECT” the output of the
RI-100 is now changed from
SPEAKERS to HEADPHONES
34

RI-100 | Version 1

7. examples operation
Example 3
Restoring the settings
of the RI-100
Press the“MENU”button to
enter Menu Mode.
Navigate to the “RESET”
submenu, using the function
buttons on the left front
Scroll forward in
the menu.



2. MENU/ Enter & Exit
SELECT submenus and
select settings.
3.



Scroll backward
in the menu.

Enter the RESET submenu.
The display now shows RESET
NO. Press the  button. The
display now shows RESET YES.
Press the SELECT button. The
settings of the RI-100 have now
been restored.

LEAVE
OUTPUT
SELEC T

SETUP
BACK
DATA

SELECT

RESET
RESET NO

SELECT

RESET YES
RESET

7. appendix

Figure 7 . RI-100 Left front panel.

Figure 12 Example 2 Restoring settings

RI-100 | Version 1

7. examples operation
Example 4
Changing
remote settings
The remote is (fresh from the
box) not paired to the RI-100.
When you go into the menu to
see the remote ID, the display
will show NO PAIR.
You first have to pair the
remote and the RI-100 to
get a remote ID. Pairing of
the remote and the RI-100 is
explained on page 33.

Un-pairing of the
remote.
Press the“MENU”button to
enter Menu Mode.
Navigate to the “REMOTE”
submenu, using the function
buttons on the left front
1.



Scroll forward in
the menu.

2. MENU/ Enter & Exit
SELECT submenus and
select settings.
3.



Scroll backward
in the menu.

Enter the “MENU” submenu
and scroll down using the 
button. The display now shows
“UNPAIR”. Press the “SELECT”
button. The display now shows
NO PAIR. This means that the
remote and the RI-100 are now
unpaired.
Figure 7. RI-100 Left front panel.

LEAVE
OUTPUT
SELECT

SETUP
BACK
DATA
RESET

SELECT

REMOTE
REMOTE ID

SELECT

NO PAIR

SELECT

UNPAIRED
REMOTE

Figure 13 Example 3 Changing settings of the remote

RI-100 | Version 1

7. examples operation
Example 5
Pairing the remote
and the RI-100
Follow these steps
1.Press and hold the
Standby button.
2.Press and hold the
Next Input button.

Changing the Remote ID.
When two devices have the
same Remote ID. Then you can
change the remote id of one of
the devices
Volume Up
Mute

3.Hold these buttons
down for 5 seconds. Previous Input
The display shows
the Remote I.D
( for example 155).
Standby

Next Input
Volume Down
Select Load
Value
(only with
RIAA)

Follow these steps
1.Press and hold the
standbybutton.
2.Press and hold the
Mute button.
3.Hold these buttons down
for 5 seconds.
The display now shows the new
Remote ID ( old ID + 1, fx 156)

Unpairing the remote
and the RI-100.
Follow these steps
1.Press and hold the
standby button.

Figure 14 Mac-remote functions.

RI-100 | Version 1

7. appendix

2.Press and hold the
Previous Input button.
3.Hold these buttons down
for 5 seconds. The display
shows NO PAIR

7. examples operation
Example 6
Setting the
initial volume step.
Press the“MENU”button to
enter Menu Mode.
Navigate to the V.INIT
submenu, using the function
buttons on the left front
1.

Figure 7. RI-100 Left front panel.
MENU

 Scroll forward in the
menu.

LEAVE
OUTPUT

2. MENU/ Enter & Exit
SELECT submenus and
selectsettings.
3.



BACK
DATA

Scroll backward in
the menu.

In the V.INIT submenu you can
adjust the initial volume step.
This is the volume step the RI100 start up in when he leaves
standby mode. The initial
volume step is as a standard
set to -42.
Set the volume step to -30
using the  and the 
buttons. Press SELECT and
leave the menu. Next time you
initialize the RI-100, the volume
step will be -30.

SETUP

RESET
REMOTE
SELECT

V.INIT

SELECT

VOL.STEP

SELECT

-4 2
-3 O

VOL.STEP
Figure 15 Example 5 Setting initial volume step

RI-100 | Version 1

7. examples operation
Example 7
Setting the RI-100 to
remember the current volume step.

Figure 7 . RI-100 Left front panel.
MENU

LEAVE
OUTPUT

 Scroll forward in the
menu.

SETUP
BACK

2. MENU/ Enter & Exit
SELECT submenus and
selectsettings.
3.



Scroll backward in
the menu.

In the V.INIT submenu you
can set the RI-100 to remember
the current volume step. The
RI-100 will start up in this volume
step when it leaves standby.
This volume step however is not
remembered when the power
cord is removed. Then the RI-100
will initiate in the volume step as it
is defined in the V.INIT sub-menu
(example 5).

RI-100 | Version 1

DATA
RESET
REMOTE
SELECT

V.INIT
VOL.STEP

SELECT

REMEMBER
VOL.STEP

7. appendix

Press the“MENU”button to
enter Menu Mode.
Navigate to the V.INIT
submenu, using the function
buttons on the left front

Figure 16 Example 6 Remember volume step

Go to REMEMBER press
SELECT. The display now
shows VOL.STEP. The RI-100 will
now start up in the current volume
step when it leaves standby.

7. examples operation
Example 8
Changing brightness
from 0 to 1.
You can adjust the brightness
of the display.
Press the“MENU”button to
enter Menu Mode.
Navigate to the
“BRIGHTNESS” submenu,
using the function buttons on
the left front
1.



Scroll forward in
the menu.

Figure 7. RI-100 Left front panel.
MENU

LEAVE
OUTPUT
SELECT

BACK

2. MENU/ Enter & Exit
SELECT submenus and
select settings.
3.



DATA
RESET
REMOTE

Scroll backward
in the menu.

V.INIT
SELECT

Enter the “BRIGHTNESS”
submenu The display now
shows “0”. Press the “”
button. The brightness is now
set to 1. Press “SELECT” to
leave the. “BRIGHTNESS”
submenu.The new brightness
level is now saved.

SETUP

BRIGHT
O

SELECT

Bright
Figure 17 Example 7 changing brightness

RI-100 | Version 1

7. examples operation
MENU

You can set the volume of an
input to a fixed dB step. The
input is then locked to this dB
step and can not be adjusted
with the volume control.
Press the“MENU”button to
enter Menu Mode.
Navigate to the INPUT submenu, using the function
buttons on the left front
1.

 Scroll forward in the
menu.

2. MENU/ Enter & Exit
SELECT submenus and
selectsettings.

LEAVE
OUTPUT
SELECT

BACK
DATA
RESET
REMOTE
V.INIT
BRIGHT
SELECT



Scroll backward in
the menu.

Navigate to the FIX submenu. Select SET FIX and
then select FIX ON. The
display now shows -0.42.

INPUTS
BACK

SELECT

INPUT
BACK
USED
TEXT
OFFSET

SELECT

FIXED

SELECT

SET FIX

Figure 7. RI-100 Left front panel.

This is the volume step in which
the RI-100 initialises as a standard.
Adjust the volume step to -30 dB
and press the SELECT button. The
display now shows SET FIX.
Input X is now locked to the
choosen dB step and can not be
adjusted with the volume control.
If you want to set FIX OFF, then
repeate the sequence of the
example and select FIX OFF.

Figure 12 Example 6 RP-101

FIX ON

SELECT

SETUP

FIXED

7. appendix

Example 9
Set the volume of
input 1 to a fixed
volume step of -30
dB.

SET FIX
SELECT

ADJUST
-

- O.O
ADJUST
Figure 18 Example 8 Fix volume step

RI-100 | Version 1

7. examples operation
MENU

Example 10
Changing the offsetgain of the inputs.
You can set different offsetvalues for the different inputs.
You actually adjust the gain
of one individual input. This
will reduce the differences
in volume, when you switch
from one input to another. The
offset-value can be set from
-12 dB to +12 dB.
You can not change the offset
gain when you selected FIX
ON.
The following example
illustrates how to change the
offset-values: The signal on
the source using line 2 is 3 dB
higher than the signal on the
source using line 1.
We will reduce the differences
in volume between input 1
and input 2 by lowering the
offset gain of line 2 with 3 dB.

LEAVE
OUTPUT
SELECT

SETUP
BACK
DATA
RESET

Figure 7. RI-100 Left front panel.

REMOTE
V.INIT
BRIGHT
SELECT

INPUTS
BACK

SELECT

INPUT

Press the“MENU”button to
enter Menu Mode.
Navigate to the INPUT submenu, using the function buttons
on the left front
1.

BACK
USED
TEXT
SELECT

OFFSET
O.O
- .O

 Scroll forward in the
menu.

2. MENU/ Enter & Exit
SELECT submenus and
selectsettings.
3.



Scroll backward in
the menu.

Figure 12 Example 6 RP-101

SELECT

-2.O
- 3.O
OFFSET

The amplifier now automatically
turns the volume up or down
when you change between
inputs.

Figure 19 Example 9 Changing the offset-gain of inputs

RI-100 | Version 1

7. examples operation
MENU

Example 11
Disabling inputs.

Press the“MENU”button to
enter Menu Mode.
Navigate to the INPUT submenu, using the function
buttons on the left front
1.



Scroll backward in
the menu.

SETUP

BACK
The amplifier now
DATA
automatically turn the volume
RESET
up or down when
you change
between inputs. REMOTE

Figure 7. RI-100 Left front panel.

V.INIT
BRIGHT
SELECT

INPUTS
INPUT

INPUT2
INPUT3
SELECT

INPUT 4
BACK

 Scroll forward in the
menu.

2. MENU/ Enter & Exit
SELECT submenus and
selectsettings.
3.

OUTPUT
SELECT

FIXED
OFFSET
TEXT

Figure 12 Example 6 RP-101
SELECT

USED

SELECT

NOT USED

7. appendix

If you only use some of the
inputs,then it is possible to
disable the inputs that you are
not using. The system will skip
the disabled inputs,
and jump to the next input.
The following example
illustrates how to disable
Input 4.

LEAVE

USED
Figure 20 Example 10 Disabling inputs

RI-100 | Version 1

7. examples operation
Example 12
Changing the name of
INPUT 1 to SCD-010.
Press the“MENU”button to
enter Menu Mode.
Navigate to the TEXT
submenu, using the function
buttons on the left front
1.

 Scroll forward in the
menu.

2. MENU/ Enter & Exit
SELECT submenus and
selectsettings.
3.



The

Figure 7. RI-100 Left front panel.

name of INPUT1LEAVE
has now
been changed from
LINE 1
OUTPUT
to SCD-010.
Leave the TEXT SETUP
submenu.
BACK
When you leave the Menu
DATA
Mode the display
will show
SCD-010.
RESET
REMOTE

Scroll backward in
the menu.

In the TEXT submenu you will
find a list of predefined names,
that you can choose from.
Scroll through the list using the
 and the  buttons.
Select the name SCD-010
using the SELECT button.

V.INIT
BRIGHT
SELECT

INPUTS
BACK
INPUT

SELECT

FIXED
OFFSET

SELECT

TEXT
LINE

SELECT

SCD-O O
TEXT

Figure 21 Example 11 Changing the input name.

RI-100 | Version 1

7. examples operation
Example 13
Changing the name
of INPUT 1 to PICKUP

We continue from the “TEXT
” sub-menu in the previous
example.
Figure 8. RI-100 Right front panel.
MENU

In the text- menu it is possible
to change the name of the
input. This is done by using
the following buttons from the
right front:

LINE

1.  Change selected
character.

PI.E

2. MUTE Go to the next
character in the display.
3.  Change selected
character..

MUTE

.INE
PINE

MUTE

P.NE

MUTE

PICE

MUTE

PIC.
PICK

MUTE

PICK.
PICKU

MUTE

PICKU.
PICKUP

MUTE

TEXT
Figure 22 Example 12 Changing the input name.

RI-100 | Version 1

The display is showing LINE 1
Press MUTE
(The first character in the
display starts blinking)
Press  or  until the first
character has the value you
want. Press MUTE (The second
character in the display starts
blinking)
Press MUTE when the last
character in the display is
blinking. The new device name
is now saved, and then you
can leave the TEXT sub-menu.
When you are editing the
Input name, then you can
save the changes at any time.
You do this by pressing the
SELECT button

7. appendix

If you want to use an inputname that is not in the
predefined list, then it is
possible to manually add a
name to the list.

We will now change the inputname “Line 1” to PICKUP
(Not in the predefined list) .

7. examples connecting devices
Connecting devices

On examples1 2 and 3 we
show you how the RI-100 can
be connected to other devices.

Vitus Audio Products
Reference Series

RCD-100

3rd Party Products

Headphones

In our examples we used the
following devices
RI-100 Integrated Amplifier

RL-101 Linestage

Media Center

Turntable

RP-101 Phonostage

RS-100 Stereo Amplifier
Figure 23 Devices used

RI-100 | Version 1

7. examples connecting devices
Connecting devices 1
Optional Modules.

Pre-out

The RI-100 has
3 upgrade
possibilities.

fac

ter

C in

odule

Units

face

ne inter

o
Headph

RIAA-M

RIAA module
DAC interface
Headamp interface

7. appendix

Passive Speakers
RI-100
Turntable
Media Center
Headphones

Figure 24 Optional Modules

RI-100 | Version 1

7. examples connecting devices
Connecting devices 2
Active Subwoofer.
It is possible to connect an
active subwoofer
to the Pre-out.
Units

-ou

Pre

Passive Speakerss
Active Subwoofer
RI-100
Turntable
RCD-100

ule

-Mod

RIAA
Figure 25 Active Subwoofer

RI-100 | Version 1

7. examples connecting devices
Connecting devices 3
RCD-100 as DAC
Hi-Mid

Hi-Mid

The Media Center is
connected to the RCD-100.
The RCD-100 is used as a DAC.
The RI-100 is powering the
hi- and mid-tones. The RS-100
is connected to the PRE-OUT
of the RI-100. The RS-100 is
powering the bass

Pre
t
-ou

Units

rface

one inte

Headph

RCD-100
as DAC

7. appendix

Speakers (Hi-Mid)
Speakers (Low)
RI-100
RS-100
RP-101
RCD-100
Media Center
Turntable
Headphones

Low

Figure 26 RCD-100 as DAC

RI-100 | Version 1

8. pictures
RI-100 Inside view

Picture 1 RI-100 Inside view

RI-100 | Version 1

8. pictures

RI-100 Front

Picture 2 RI-100 Front

RI-100 | Version 1

Handcrafted in Denmark

AVA Group A/S (Vitus Audio), Sandgaardsvej 31, DK-7400 Herning, Denmark, Phone: +45 9626 8046, Fax: +45 9626 8045
e-mail: info@vitusaudio.com, web site: www.vitusaudio.com

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