Williams Allegro 2 Plus Keyboard Manual

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owner's manual

CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT
REMOVE COVER OR BACK. NO USER-SERVICEABLE PARTS INSIDE.
REFER SERVICING TO QUALIFIED SERVICE PERSONNEL

IMPORTANT SAFETY INSTRUCTIONS
• Do not use near water.
• Clean only with a soft, dry cloth.
• Do not block any ventilation openings.
• Do not place near any heat sources such as radiators, heat registers, stoves, or any other apparatus(including
amplifiers) that produces heat.
• Do not remove the polarized or grounding-type plug.
• Protect the power cord from being walked on or pinched.
• Only use the included attachments/accessories.
• Unplug this apparatus during lightning storms or when unused for a long period of time.
• Refer all servicing to qualified service personnel. Servicing is required when the apparatus has been damaged in any
way, such as power-supply cord or plug is damaged, liquid has been spilled or objects have fallen into the apparatus,
the apparatus has been exposed to rain or moisture, does not operate normally, or has been dropped.

FCC STATEMENTS
1. Caution: Changes or modifications to this unit not expressly approved by the party responsible for compliance could
void the user’s authority to operate the equipment.
2. NOTE: This equipment has been tested and found to comply with the for a Class B digital device, pursuant to Part 15 of
the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential
installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in
accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to
radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to
try to correct the interference by one or more of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.

O W N E R ' S MAN UAL

ALLEG R O 2 plus D I G ITAL P IAN O

INTRODUCTION
• Congratulations! You have just purchased a state of the art digital piano that provides remarkable
acoustic sound and feel. We recommend that you read through this owner's manual carefully, so you
can get the most enjoyment from your new piano.
• Features include:
• 88 weighted, velocity-sensitive keys
• 10 piano & keyboard sounds
• Metronome feature with variable tempo to facilitate practice or recording
• Demo songs corresponding to each voice
• USB MIDI connections
• Stereo/mono line out jacks
• Includes sustain pedal, power supply and music rest
• Battery Operation (batteries are not included).

BEFORE YOU GET STARTED
Shipment
Your piano was carefully packed at the factory, and the packaging was designed to protect the unit
from rough handling. Nevertheless, we recommend that you carefully examine the packaging and its
contents for any signs of physical damage that may have occurred during transit.
• If the unit is damaged, notify us immediately at Williams Product Support: (888) 241-1582
• Always use the original packing carton to prevent damage during storage or transport.
• Make sure that no children are left unsupervised with the piano or its packaging.
• Please ensure proper disposal of all packing materials.

INITIAL OPERATION / QUICK START
• Take out the AC Adapter and insert the barrel jack into the back panel. Then plug in the power cord into
an 110V supply.
• Insert the supplied music rest into the two holes on the top panel.
• Plug the sustain pedal into the Sustain jack on the back panel of the piano.
• Set the piano on a secure, flat surface at a comfortable height for playing.
• Press the power button on the left side of the front panel. The LED on the button will light.
• Press the Voice Select button for the desired voice.
• Adjust the volume control

W ILLIAM S P IAN OS. CO M

TABLE OF CONTENTS
IMPORTANT SAFETY INSTRUCTIONS................2

RECORDING........................................................11

INTRODUCTION....................................................3

SPLIT MODE........................................................11

BEFORE YOU GET STARTED...............................3

TUNING.................................................................12

INITIAL OPERATION / QUICK START..................3

EFFECTS..............................................................12

TAKING CARE OF YOUR DIGITAL PIANO...........5

MOD FX................................................................14

TOP PANEL...........................................................6

ADVANCED FUNCTIONS....................................16

BACK PANEL .........................................................7

MIDI......................................................................17

BOTTOM PANEL....................................................7

SPECIFICATIONS.................................................18

OPERATIONS........................................................ 8

MIDI IMPLEMENTATION CHART........................19

DEMO SONGS......................................................10

WARRANTY..........................................................20

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with a luxurious Williams AS1 plus keyboard stand.
It features a sturdy H-frame design with a striking matte ebony finish that seamlessly matches
your keyboard, providing an stylish, modern touch that complements any décor.
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Now available at guitarcenter.com and musiciansfriend.com

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ALLEG R O 2 plus D I G ITAL P IAN O

TAKING CARE OF YOUR DIGITAL PIANO
This Williams Allegro 2 plus digital piano will provide years of musical enjoyment if you follow the
suggestions listed below.

Product Servicing
This product should be serviced by qualified service personnel when:
• The power supply cord or the plug has been damaged.
• Liquid has been spilled into the unit or it has been exposed to rain.
• The instrument does not appear to operate normally or exhibits a marked change in performance.
• The instrument has been dropped or the cabinet has been damaged.
• Please contact support@williamspianos.com for parts and service information.

Handling and Transport
• Never apply excessive force to the controls, connectors or other parts of the instrument.
• Always unplug cables by gripping the plug firmly, not by pulling on the cable.
• Disconnect all cables before moving the instrument.
• Physical shocks caused by dropping, bumping, or placing heavy objects on the instrument can
result in superficial or operational damage.
• Carefully check the volume control before playing. Excessive volume can cause permanent hearing loss.

Cleaning
• Clean the cabinet and panel with a soft, dry cloth. Do not use paint thinner or petrochemical
based polishes.
• To maintain the luster of the keys and buttons, wipe with a clean, lightly dampened cloth, and then
polish with a soft, dry cloth.

Location
• To avoid deformation, discoloration, or more serious damage, do not expose the instrument to the following
conditions: Direct sunlight, high temperatures, excessive humidity, excessive dust, strong vibration.
• Leave enough space around the piano for proper ventilation.
• This instrument contains digital circuitry and may cause or be susceptible to interference if placed
too close to radio, television receivers, or mobile phones. If interference occurs, move the instrument
further away from the affected equipment.
• Avoid placing vinyl objects on top of the instrument, vinyl can stick to and discolor the surface.

Power
• Turn the power off when the instrument is not in use.
• To avoid damage to the instrument and other devices to which it is connected, turn the power of all
related devices off prior to connection or disconnection of MIDI cables.
• Turn the power off if the main cable is damaged, or the instrument has been exposed to liquid.
• Do not switch the unit on and off in quick succession, as this places an undue load on the
electronic components.
• Unplug the AC power adapter during an electrical storm.
• Avoid plugging the AC power adapter into the same AC outlet as appliances with high power
consumption, such as electric heaters or ovens.
W ILLIAM S P IAN OS. CO M

TOP PANEL

VOICE SELECT
POWER
PIANO RESET
METRONOME

MIN

TRANSPOSE

FUNCTION

PIANO

ELECTRIC
PIANO

ORGAN

MOD-FX

CHORUS

REVERB

PAD

BASS

VARIATION

RECORD

VALUE
OCTAVE

SONG

PLAY

SPLIT

MAX

MASTER VOLUME

Power On/Off
Volume Knob
Controls the overall output volume of the piano.

allegro 2

Song
Pressing the Song button and the Voice buttons
selects which song will play.

Metronome
Turns off and on the Metronome.

Record
Pressing the Song and Play buttons simultaneously
will start the recording function.

Transpose
Transposes the key of the piano.

Play
Pressing Play will playback the song you recorded.

Octave
Transposes the range of the piano keys 1 octave
higher or lower.

Voice Select Buttons
(PIANO, ELECTRIC PIANO, ORGAN, PAD, BASS)
Pressing these buttons will switch on the sound that
is associated with the names printed above them.

Piano Reset
Pressing the Transpose and Octave buttons
simultaneously will reset the transpose and octave
functions to factory settings.
Function Button
Selects various functions in the Piano.
LCD Display
Shows the current name of the song or voice as well
as the parameter assignments.

G.Piano

Variation Button
This will allow you to switch between the original
and variation sounds. When the blue LED is lighted
the sound will be the variation sound.
SPLIT Button
Splits the keyboard between right and left side.
Reverb Button
Turns on and off the Reverb effect assigned to
the voice.
Chorus Button
Turns on and off the Chorus effect assigned to
the voice.
Mod FX Button
Turns on and off the Modulation effect assigned
to the voice.

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ALLEG R O 2 plus D I G ITAL P IAN O

BACK PANEL

USB Input
The USB connection supports Class
Compliant MIDI Drivers to use with MIDI
Sequencer applications.
AC Adapter Input
Connection for the AC power adapter.
Sustain Pedal Input
The sustain pedal for Allegro 2 plus will
function in a similar method as an acoustic
piano sustain pedal. (It will also function as a
Mod FX expression pedal for organ sounds.)
Using this pedal will allow the piano key
sounds to decay slowly. A piano-style pedal
may optionally be used. The jack will autodetect the polarity of the sustain pedal. If you
are unsure about the polarity of the pedal you
are using. Plug in the pedal and then turn
on the Allegro 2 plus. It will auto-sense the
correct polarity as it starts up.

Headphone
The headphone socket disconnects the
speakers when headphones are connected.
Outputs-Stereo/ Mono Line Out ¼” Jacks
The output jacks supply a line-level signal for
external amplification. Use both jacks for stereo
or just the Left jack for mono.

BOTTOM PANEL
Battery Compartment
The product can either be powered via a
AC power adapter or battery. If batteries are
inserted while the unit is powered from a

W ILLIAM S P IAN OS. CO M

power supply, no power will be drawn from the
batteries. The Allegro 2 plus requires 6 D Cell
batteries for operation.

OPERATIONS
The Allegro 2 plus has an LCD that allows you
to see the Voice name as well as its parameters.
Most of the front panel buttons are very straight
forward and easy to select for general functions.
In cases where you want to edit settings in
more depth you will need to use the front panel
buttons as well as the Function button and
Value knob to change parameters.
Powering On the Allegro 2 plus
Press the POWER button in the upper left
corner of the front panel. The LED light in the
button will stay on when the piano is on. This
product has a power standby mode. If the piano
turns off while you are not playing it, this is
likely due to the Power mode being set to Auto
Power off. To turn off this function, hold down
the lowest white and black key together while
you turn on the Allegro 2 plus.
Metronome Function
Press the Metronome button to turn on the
metronome. The LED will light. You will hear the
click in headphones or speakers.
Press the Metronome button again to exit
metronome function. The LED will turn off.
To Change Metronome Time Signature
1. P
ress and hold the Metronome button for
2 seconds. The LCD display will show the
current metronome signature setting and
then go back to current Voice name.
2. T
urn the Value Knob to determine the Metro
time signature while the display shows the
current setting.

2. Turn the Value Dial to select Metronome
signature edit menu, the display will show
“Time Sig”.
3. Press the Function button again to enter
the relative parameter edit menu, and the
parameter will blink to indicate the parameter
is editable.
4. Turn the Value Dial to select a time signature.

Time Sig
To Set The Volume Level Of The Metronome
1. Press the Function button.
2. Turn the Value Dial to select the Metronome
Volume edit menu. The display will show
“MetroVol”.
3. Press the Function button again to enter
the relative parameter edit menu, and the
parameter will blink to indicate the parameter
is editable.
4. Turn the Value Dial to select the Metronome
Volume range (0-127).

MetroVol

The default is 4/4 and the following options are
available to toggle through: 2/4, 3/4, 4/4, 5/4,
6/8, 9/8, 12/8
You can also change the Metronome time
signature with the Function Mode.
1. Press the Function button.

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ALLEG R O 2 plus D I G ITAL P IAN O
Tempo Setting

To transpose the full keyboard:

5. Press the Function button.

1. Press the Octave button. The display
will show the current full keyboard Octave
setting (“Main Oct”) and then change to the
current Voice.

6. T
urn the Value Dial to select Tempo edit
menu, the display will show “Tempo”.
7. P
ress the Function button again to enter the
parameter edit menu. The numeric parameter
will blink to indicate the number is editable.
8. Turn the Value Dial to select Tempo (20 - 280).

2. While the Octave screen is on you can turn
the Value Dial to select the Octave (+ 1 or -1.)

Main Oct

Tempo
To transpose the split Keyboard, left hand
Octave:
Transpose Function
This function will transpose the piano keyboard
by +12 or -12 semitones.
To transpose the keyboard
1. P
ress the Transpose button. The display will
show the current Transpose setting and then
change to the current Voice.
2. W
hile the Transpose screen is on you can
turn the Value Dial to select the Transpose
range (+12 or -12 semitones.)

1. Press and hold the Octave button, 2
seconds later the display will show “
SplitOct”, and then change to the current
Voice.
2. While the screen is on showing “SplitOct”,
turn the Value Dial to select the left hand
(split mode) Octave (+1 or -1.)

SplitOct

Transpo
Piano Reset

Octave
This function will transpose the piano keyboard
up or down up and down by one octave.

If you want to quickly reset the keyboard to
the normal transposition and Octave ranges
you can you do this quickly by pressing the
Transpose and Octave buttons simultaneously.

There are two kinds of Octaves. One is for full
keyboard (right hand) octave the other is for
split mode (left hand ) octave.

W ILLIAM S P IAN OS. CO M

Voices

Changing the Voice Volume Level

The Allegro 2 plus piano has 10 built-in voices.
Each voice may be selected one at a time. They
can be layered to produce two voices at once,
or assigned to the left or right hands in the split
mode.

1. Press the Function button.

To select a voice, press the Voice Select button
that relates to the sound listed above the
button.

3. Press the Function button again to enter the
parameter edit menu. The numeric parameter
will blink to indicate the number is editable.

The button will light and the LED will indicate
the selection as shown below. If the sound is a
variation sound the variation light will be on.

4. Turn the Value Dial to select the level of the
voice volume (0-127).

2. Turn the Value Dial to select Voice Volume
Level edit menu, the display will show
“M .Volume”.

M.Volume
DEMO SONGS
The Allegro 2 plus comes with 10 demo songs
as well as the ability for you to play and record
your own song. When you record your own
song the recording will be retained until you
either record a new song or if you reset the
Allegro 2 plus back to factory settings.
To Play A Demo Song
Press the Song button and the corresponding Voice
select button. See list below of the demo songs.
Selecting the Voices
The buttons on the right side of the keyboard
in the Voice Select area are for selecting the
Sounds or Voices in the Allegro 2 plus.
Each Voice has an original and variation version
of the sound. Press the Variation button to
select the Variation voice.
Original Voice

Variation Voice

Piano

Piano - Bright

Electric Piano

Organ

Pad - Strings

Pad - Synth

Acoustic Bass

Electric Bass

Demo Songs
Piano Song

Voice

Piano

Electric Piano

Organ

Pad - Strings

Acoustic Bass

Piano - Variation

Electric Piano - Variation

Organ - Variation

Pad - Synth - Variation

Electric Bass - Variation

Electric Piano 2
Organ 2

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ALLEG R O 2 plus D I G ITAL P IAN O

RECORDING

4. Turn the Value Dial to select the level of the
layer volume (0-127).

Recording Your Own Song
1. P
ress the Song and Play buttons
simultaneously.

D.Volume

2. O
nce you start playing, the button LEDs
will flash to indicate that the recording
has started.
3. W
hen you finish playing, press the SONG and
PLAY buttons again to stop the recorder, or
you can press PLAY only to stop the recorder
and hear your song.
Layer Mode
To layer two sounds, press the corresponding
voices simultaneously. Both voice LEDs will
light up to indicate that they are layers.
To layer two sounds in different banks, press
and hold simultaneously the instrument in the
first bank and the bank button. The bank button
LED will blink and the first instrument button
will be lit. Once the bank button is blinking,
select the layered instrument from the second
bank by pressing the corresponding Instrument
button. Once selected, this button will blink to
indicate that it is from the second bank while
the instrument from the first bank stays lit. If
two voices are in the first and second bank (but
on the same button) are selected, the buttons
should merely blink.
To return to normal, single voice mode, press a
single Voice button.
To Change The Layer Volume Level
1. Press the Function button.
2. T
urn the Value Dial to select the Layer
Volume Level edit menu, the display will
show “D .Volume”.

SPLIT MODE
Split Mode allows the keyboard to be divided
into two sections so that different voices may
be played with the left and right hands. The
volume may be independently adjusted for each
voice, the Split Point (the highest note played
with the left hand) may be adjusted and the
Split Voice may be changed as desired.
To Enter Split Mode
Press the [SPLIT] button.
The Split (left hand) voice will be the last Split
Voice used and the Split Point will be B2.
To Change The Split Volume (Upper And
Lower)
1. Press the Function button.
2. Turn the Value Dial to select the Split Volume
Level edit menu, the display will show
“S .Volume”.
3. Press the Function button again to enter the
parameter edit menu. The numeric parameter
will blink to indicate the number is editable.
4. Turn the Value Dial to select the level of the
split volume (0-127).

S.Volume

3. P
ress the Function button again to enter
parameter edit menu. The numeric parameter
will blink to indicate the number is editable.
W ILLIAM S P IAN OS. CO M

To Change The Split (Left Hand) Voice Note
Press and hold the Split button while
depressing the desired Voice Select button.

Change The Main (Right Hand) Voice
1. E
xit Split Mode by pressing the Split button.

2. When the display is on the split octave
screen, turn the Value Dial to change Split
Octave (-1 or +1).
To Turn Off Split Mode
Press the Split button. The LED will turn off as
well as the currently selected voice.

TUNING

2. S
elect the new voice and then press Split
again to re-enter Split mode.

To Change The Voice Tuning

To Change the Split Point

1. Press the Function button.

Hold the Split button and then press a key on
the keyboard to determine the split point.

2.Turn the Value Dial to select the Tune edit
menu, the display will show “Tune a1”.

S.P:E2

3. Press the Function button again to enter the
parameter edit menu. The numeric parameter
will blink to indicate the number is editable.
4. Turn the Value Dial to select the Tuning (the
range is 415Hz to +466Hz).

You can also change the split point with the
Function Mode.

Tune a1

1. Press the Function button.
2. T
urn the Value Dial to select split point edit
menu, the display will show “S .P:xx”.
3. P
ress the Function button again to enter the
parameter edit menu. The numeric parameter
will blink to indicate the number is editable.
4. T
urn the Value Dial to select the split point
(A-1 to C-7).

SplitOct

EFFECTS
The Reverb and Chorus effects may be applied
to each voice individually and will be retained
even when the power is turned off.
To apply either effect, press either button. The
button will light and the effect will be heard
when the piano is played.
To turn off the effect press the button of the
desired effect again and the LED light will go off.

To Change the Split (left hand)Octave
1. Press and hold the [Octave] button, 2 seconds
later the LCD will display “Split Oct”.

Reverb and Chorus settings are set per
Instrument and retained over power cycling.

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ALLEG R O 2 plus D I G ITAL P IAN O
Reverb

Chorus

To change the reverb type:

Chorus effects add shimmering movement to a
voice. The setting can be subtle to extreme.

1. Press the Function button.
2. T
urn the Value Dial to select Reverb Type edit
menu, the display will show “Rev .Type”.
3. P
ress the Function button again to enter
parameter edit menu. The numeric parameter
will blink to indicate the number is editable.
4. T
urn the Value Dial to select Reverb type (R1
to R8).

Type #

Type
Name

Type #

Type
Name

Hall1

Room3

Hall2

Stage1

Room1

Stage2

Room2

Plate

To Change The Reverb Depth
1. Press and hold the Reverb button, the
display will show current depth of the reverb
and then return to the current Voice after
about 5 seconds.
2. W
hile the display is the depth of Reverb, you
can turn the Value Dial to select the depth
range (0-127.)
You can also change the Reverb depth with the
Function button:

To Change The Chorus Type
1. Press the Function button.
2. Turn the Value Dial to select the Chorus Type
edit menu, the display will show “Chr .Type”.
3. Press the Function button again to enter the
parameter edit menu. The numeric parameter
will blink to indicate the number is editable.
4. Turn the Value Dial to select a Chorus Type
(C1 to C8).

Chr.Type
Chorus Type List
Type #

Type
Name

Type #

Type
Name

Chorus1

Celeste1

Chorus2

Celeste2

Chorus3

Celeste3

Chorus4

Celeste4

To Change The Chorus Depth

2. T
urn the Value Dial to select the Reverb depth
edit menu, the display will show “R .Depth”.

1. Press and hold the Chorus button, the
display will show current depth of the chorus
and then return to display current Voice
after about 5 sec.

3. P
ress the Function button again to enter the
parameter edit menu. The numeric parameter
will blink to indicate the number is editable.

2. While the display show the Chorus depth,
you can turn the Value Dial to select the
depth range (0-127.)

4. Select the depth range (0-127).

Also you can change the Chorus depth with the
Function Mode:

1. Press the Function button.

W ILLIAM S P IAN OS. CO M

1. Press the Function button.
2. Turn the Value Dial to select the Chorus depth
edit menu, the display will show “C .Depth”.
3. P
ress the Function button again to enter the
parameter edit menu. The numeric parameter
will blink to indicate the number is editable.
4. Select the depth range (0-127).

C.Depth

To turn on the Mod FX function for an instrument
press the ModFx button. The effect will become
active and the ModFx LED will light.
To turn off the the ModFx, press the button
again. The LED on the button will turn off.
Rotary
There is a rotary effect, which is designed
for organ voices. To select the speed of the
rotary, press the sustain pedal with your foot.
Holding down the pedal will speed up the rotary
voice to a tremolo. When the pedal is released,
the speed of the tremolo will slow down to a
choral setting.
Rotary Speed Mode

MOD FX

RotSpeed

Modulation effects are designed to add unique
playable sound effects to voices.
In addition to the sounds, the Allegro 2 plus has
a new effects section that will allow users to have
more control over their sounds called Mod FX.
These new effects will be inserted into the audio
pathway of the sound to the mixer and will be
preset into the Patch. When you switch on the
specific patch a preset effect will be associated
with the sound. You can then select whether the
effect should be turned off or modified.
The Mod FX Are:
Bank1

Bank2

Mod FX

Piano

Piano - Bright

Tremolo

Electric Piano Electric Piano2

Vibrato

Organ

Organ2

Rotary Fast/Slow Change with
Sustain Pedal

Pad - Strings

Pad - Synth

Tremolo

Acoustic
Bass

Electric Bass

None

As a default, the Rotary Speed mode is
assigned to “PEd”. This mode allows you to
change the Rotary Speed by using a foot pedal.
Note that the sustain will not hold the sound
when your hands are off the keys in this mode.
In “SLW” mode, the speed is assigned to be
slow. The sustain pedal will work to sustain
the sound.
The last mode is “FST”, the speed is assigned
to be fast. The sustain pedal will also sustain
the sound.
To Change The Rotary Speed Settings In The
Function Mode
1. Press the Function button.
2. Turn the Value Dial to select the Rotary
Speed Mode edit menu, the display will
show “RotSpeed”.

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ALLEG R O 2 plus D I G ITAL P IAN O
3. P
ress the Function button again to enter the
parameter edit menu. The numeric parameter
will blink to indicate the number is editable.

3. Press the Function button again to enter the
parameter edit menu. The numeric parameter
will blink to indicate the number is editable.

4. T
urn the Value Dial to select the Speed:
“PEd(pedal)”, ”SLW(slow)”, ”FST(fast)”.

4. Turn the Value Dial to select the Vibrato
Speed (0 - 127).

RotSpeed

VibSpeed

Vibrato

EQ BASS Level Setting

When the Modfx effect is active, the Electric
Piano voices will receive the Vibrato effect.

1. Press the Function button.

VibDepth

2. Turn the Value Dial to select the EQ Bass edit
menu, the display will show “EQ Bass”.
3. Press the Function button again to enter the
parameter edit menu. The numeric parameter
will blink to indicate the number is editable.
4. Turn the Value Dial to select the EQ Bass
Level (-12 to +12).

To Change The Vibrato Depth:
1. Press the Function button.

EQ Bass

2. T
urn the Value Dial to select the Vibrato depth
edit menu, the display will show “VibDepth”.
3. P
ress the Function button again to enter the
parameter edit menu. The numeric parameter
will blink to indicate the number is editable.
4. T
urn the Value Dial to select the Vibrato Level
(0 - 127).
To Change The Vibrato Speed:
1. Press the Function button.
2. Turn the Value Dial to select the Vibrato Depth
edit menu, the display will show “VibSpeed”.

W ILLIAM S P IAN OS. CO M

EQ Treble Level Setting
1. Press the Function button.
2. T
urn the Value Dial to select the EQ Bass edit
menu, the display will show “EQ Treb”.
3. P
ress the Function button again to enter the
parameter edit menu. The numeric parameter
will blink to indicate the number is editable.

4. Turn the Value Dial to select the Power Auto
feature on or off.
Factory Reset
Performing a Factory Reset will clear all battery
backed memory and restore all functions to
factory defaults.

4. T
urn the Value Dial to select the EQ Treble
Level (-12 to +12).

EQ Treb
1. Turn the Power Off.
2. Press and hold the transpose and octave
buttons.

ADVANCED
FUNCTIONS
Power Auto Shutting Down On/Off Setting
The Allegro 2 plus has a Power saving function
that will shut off the Piano after 30 minutes of
non-use. The default setting is Off, however if
you find you want this function to work use the
steps below.

AutoPowr

3. Turn the Power on. If the display shows
“Reset Ok”, the action is successful.
Touch Sensitivity
You can change the way the keyboard reacts
to your playing by adjusting the Velocity curve
settings
1. Press the Function button.
2. Turn the Value Dial to select the Velocity
Curve edit menu, the display will show
“VelCurve”.
3. Press the Function button again to enter the
parameter edit menu. The numeric parameter
will blink to indicate the number is editable.
4. Turn the Value Dial to select Velocity Curve
(0-4).

1. Press the Function button.

Velocity Curve List

2. T
urn the Value Dial to select the Power Auto
edit menu, the display will show “AutoPowr”.

1. Fixed Velocity

3. P
ress the Function button again to enter the
parameter edit menu. The numeric parameter
will blink to indicate the number is editable.

3. normal

2. soft

4. hard

O W N E R ' S MAN UAL

ALLEG R O 2 plus D I G ITAL P IAN O

MIDI
The Musical Instrument Digital Interface
(MIDI) is an industry-standard protocol that
enables electronic musical instruments such as
keyboards, computers, drum machines, etc. to
communicate, control, and synchronize with each
other. MIDI transmissions consist of electronic
codes that communicate notes to be played,
the instrument, pitch or intensity that notes are
to be played with, and controlling codes such
as volume, vibrato, cues and clock signals.The
Allegro 2 plus has several functions that facilitate
its use as a MIDI device or controller.
MIDI Channels
The Allegro 2 plus has 16 channels numbered
from 1-16. Each of the channels is responsible
for a voice. When the instrument receives MIDI
information from an external device, the active
channel is determined by the control message.
The transmission channels are fixed as follows:
Channel 1 Master voice (keyboard)

parameter edit menu. The numeric parameter
will blink to indicate the number is editable.
4. Turn the Value Dial to select “on” or “off”.

Local
Multitimbral Mode
The Allegro 2 plus is able to receive
MIDI information on up to 16 channels
simultaneously. If you plan to use your piano
with a multitrack MIDI recording system, you
can record up to 16 different parts using the
Williams Allegro voices, each played back
individually on different MIDI channels. To
ensure your recorded part is played back with
the correct voice make sure to press the voice
button first and play your part second.

Channel 3 Layer voice (keyboard)

NOTE: Because the Allegro is receiving
playback information via MIDI, the currently
selected voice on the piano may not correspond
to the voice being played back.

Local On/Off

Setting The Midi Channel

Turning the Local On/Off function to “Off” will
disconnect the keyboard from the internal
sound engine of the piano. The Allegro 2 plus
may then be used as a MIDI controller to
control other MIDI devices or virtual instrument
software running on a computer, without
playing the sounds on the piano. Additionally,
it may be desirable to turn local playing off for
other requirements such as when using MIDI
sequencing software on your computer.

1. Press the Function button.

Channel 2 Split voice (keyboard)

Local On/Off Setting
1. Press the Function button.

2. Turn the Value Dial to select the MIDI Channel
edit menu. The display will show “MIDI Ch”.
3. Press the Function button again to enter the
parameter edit menu. The numeric parameter
will blink to indicate the number is editable.
4. Turn the Value Dial to select Midi Channel
(1-16).

MIDI Ch

2. T
urn the Value Dial to select the Local on/off
edit menu. The display will show “Local”.
3. P
ress the Function button again to enter the

W ILLIAM S P IAN OS. CO M

MIDI Panic Reset

Memory Autosave

If your piano gets a MIDI “Stuck Note”, you
can correct it with the following:

When modifying the settings of the Williams
Allegro 2 the following settings will be saved
after you turn off the keyboard: Reverb,
Chorus (for each voice), EQ bass, EQ treble,
Main Volume, Layer Volume, Split Volume,
MIDI Channel, Velocity Curve, Power Auto
Shutdown on/off, Vibrato Speed, Vibrato
Depth, Rotary Speed mode, Split Octave,
and Split Point.

1. Press the Function button.
2. Turn the Value Dial to select the Panic menu.
The display will show “Panic”.
3. Press the Play button to activate the panic
function, then return to Main Voice screen.

Panic
SPECIFICATIONS
Keyboard
Voices
Polyphony
Voice Control
Pedals
Demo Songs
MIDI Transmit Settings
Connectors
Speakers
Dimensions
Weight
Supplied

88 weighted, velocity-sensitive keys
10
64
Layer, Touch, Split, Metro
Sustain
10
Local Control
USB, Sustain Pedal, 2-1/4" (L/R), Phones
2- YDT816 (4U*15W)
(WxDxH) 51 5/8" x 5" x 13"
29.8 lbs.
Owners Manual, Sustain Pedal, Power Supply
and Music Stand

O W N E R ' S MAN UAL

ALLEG R O 2 plus D I G ITAL P IAN O

MIDI IMPLEMENTATION CHART
Function
Basic
Channel

Transmitted

Recognized

1–16 CH
X

1–16 CH
1–16 CH

Mode 3
X
**********

Mode 3
X
X

Note
Number: True Voice

0~127
**********

0~127
0~127

Velocity Note ON
Note OFF

O 9nH,v=1~127
O 8nH,v=0

O 9nH,v=1~127
O 9nH,v=0 or 8nh

After Key's

Pitch Bender

X
X
X
O
X
X
O
X
X
X
X
X
X
X
O

O
O
O
O
O
O
O
O
O
O
O
O
O (*2)
O (*1)
O

Program
Change: True

O 0–127
0–127

System Exclusive

System

:Song Position
:Song Select
Common :Tune

X
X
O

X
X
X

Aux

O
O
X
O

Mode

Default
Changed
Default
Messages
Altered

Control Change

0, 32
1
6
7
10
11
64
66
67
80, 81
84
91, 93
98, 99
100, 101
121

:Local ON/OFF
:All Notes OFF
Messages :Active Sense
:Reset
Mode1:OMNI ON,POLY
Mode3:OMNI OFF,POLY

Mode2:OMNI ON,MONO
Mode4:OMNI OFF,MONO

Remarks

Function
Modulation
Data Entry
Volume
Pan
Expresssion
Sustain
Sostenuto
Soft Pedal
DSP Type
Portamento
DSP Depth
NRPN LSB, MSB
RPN LSB, MSB
Reset All Controllers

O: Yes
X: NO

*1: Registered parameter number:
#0: Pitch sensivity
#1: Fine tuning in cents
#2: Coarse tuning in half-tones
*2: NRPN 1220h select IFX type
0: off
1: slow rotary
2: fast rotary
3: auto_pan
4: auto_tremelo

W ILLIAM S P IAN OS. CO M

NRPN 1230h Enable IFX for current track
NRPN 1237h set global reverb send level if IFX have been enable on this track
NRPN 1238h set global chorus send level if IFX have been enable on this track

WARRANTY
Williams provides the following limited warranty, to the original purchaser: this piano is warranted to
be free from electronic and/or structural defects in materials and workmanship for a period of one
(1) year from the date of original purchase. If this Williams piano is defective, at its option during the
warranty period, subject to the terms of this limited warranty and upon proof of purchase, Williams
will either repair or replace the listed piano with a same or similar model of equal age or newer.
Anyrepairs or modifications must be completed by Williams and/or an authorized agent of Williams.
The warranty obligations as set forth herein shall be performed free of charge with the exception of
all delivery and shipping expenses. This limited warranty willnot apply to this product in the case
of misuse, abuse, neglect, alterations, normal wear and tear or other circumstance not directly
attributed to electronic and/or structural defects in materials or workmanship. Without limiting the
foregoing, this limited warranty will also be inapplicable to products that have not been maintained
or replaced in accordance with the manufacturer’s instruction, or to products from which the serial
number has been removed or altered. If covered defects are found, contact your authorized Williams
dealer with regard to the alleged defect within ten (10) days of discovery of the problem.
The foregoing repair or replacement obligation for defective products shall be the sole and exclusive
remedy of this limited warranty. All warranties including, but not limited to, the express warranty and
the implied warranties of merchantability and fitness for a particular purpose are limited to the one (1)
year warranty period. Some states do not allow limitation on how long an implied warranty lasts, so
the above limitation may not apply to you. There are no express warranties beyond those stated here.
In the event that applicable law does not allow the limitation of the duration of the implied warranties
to the warranty period, then the duration of the implied warranties shall be limited to as long as is
provided by applicable law. No warranties apply after that period. Retailer and manufacturer shall not
be liable for damages based upon inconvenience, loss of use of product, loss of time, interrupted
operation or commercial loss or any other incidental or consequential damages including but not
limited to lost profits, downtime, goodwill, damage to or replacement of equipment and/or property.
1 Year Parts & Labor Warranty
Register online at www.williamspianos.com

1610-10269

O W N E R ' S MAN UAL

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Williams Allegro 2 Plus Keyboard Manual

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