Meridian Audio G41 Users Manual

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Active Installation Speakers
Meridian loudspeaker systems for in-wall and flush-mount applications

Installation loudspeakers with
true Meridian performance
Remote Active drive from
G41 or C51 Powered
Crossover/Amplifier (crossover
module included with
speaker)
Excellent, well-defined bass
and clear, open mid-range
Accurate rendering of
instruments and voice
High SPL with fast transient
response
Heavy, rigid enclosures
minimise wall and cavity
resonances
Stable imaging with excellent
depth
A330 in-wall with G41Powered Crossover/Amplifier.
For years, Meridian loudspeakers have
been regarded as offering the highest
performance available – the result of
careful design, the highest-quality
drivers and components, transparent
crossovers and rigid, low-coloration
enclosures in both Active and Digital
Active designs.
Now we have paid the same level of
attention to the design of loudpeakers
for installation purposes, including
in-wall, flush-mount and on-wall
configurations. These offer full Meridian
performance for systems where the use
of floor-standing models is impossible
or inappropriate.
The 200 Series in-ceiling/wall design
and the 300 Series of wall-mounting
systems allow exceptional flexibility of
configuration. This document describes
their application as remotely-driven
active in-wall/flush-mount speakers and
the G41 Powered Crossover/Amplifier
designed to power them; passive and
on-wall configurations are also available
and are detailed separately.
The 200 Series speakers are 2-way
designs with an 8in (200mm) bass
driver and pivoting tweeter, for
surface mounting in-ceiling or in-wall
applications.

The 300 Series consists of three ultraslimline systems for in-wall (surface
grille) and flush-mount (completely
hidden, eg behind wall coverings)
applications, featuring 6.5in (165mm)
metal-cone bass drivers, and a widedispersion horn-loaded ribbon tweeter
for superb performance anywhere.
Remote Active units are supplied with
the appropriate crossover card for the
G41 Active Crossover unit.

Wide dispersion for an
excellent sound throughout
the room
Excellent clarity for movie
dialogue
Cable length compensation
maximises performance

The 320 includes a single bass driver
and tweeter; the 330 adds an 8in
(200mm) Auxiliary Bass Radiator (ABR);
and the 350 features two bass drivers
and two ABRs.
Heavy, rigid enclosures minimise wall
and cavity excitation so you hear the
speakers, and not wall resonances.
A white paintable low-resonance grille
and frame is included, and rough-in
boxes are available.
In every case, Meridian installation
loudspeakers deliver the performance
of a stand-alone design in a discreet
enclosure with minimal visual impact
– and awesome power.
On-wall, passive and DSP configurations
are also available: contact Meridian for
details.

www.meridian-audio.com

Remote Active
Systems

A200Z
The A200Z in-ceiling speaker is a 2way designs with an 8in (200mm) bass
driver, pivoting tweeter and is supplied
without crossover. The unit may also
be mounted into standard 4-inch deep
stud walls and is designed to occupy
this depth. See back page for dimensions.

A320i/A320f

A330i/A330f
A 3 2 0 W

A350i/A350f

Wall Speakers
The 300 Series consists of three sizes
of ultra-slimline wall speakers, each
offered in three mounting formats:
In-wall (surface grille) (“i” suffix);
Flush-mount (completely hidden, eg
behind wall coverings) (“f” suffix); and
On-wall applications (“w” suffix) (these
are covered in a separate document)
The 320 model only may also be ceilingmounted.
Each unit features 6.5in (165mm) bass
drivers, and a wide-dispersion ribbon
tweeter for superb performance
anywhere. Units are supplied with a
crossover card for the G41 Powered
Crossover system.

A 3 5 0 W

P 3 3 0 W

A white custom paintable grille and a
white cloth-covered grille are included
with the in-wall products. Roughin boxes are available for in-wall or
flush-mount applications. The flushmount version is supplied without a
grille, facilitating custom wall surface
treatments.
The 320 includes a single bass driver
and tweeter; the 330 adds an 8in
(200mm) Auxiliary Bass Radiator
(ABR); and the 350 features two
bass drivers and two ABRs. All three
models are available for passive (‘P’
prefix) and active operation (‘A’ prefix)
and for in-wall, flush-mount or onwall installation. See opposite for
dimensions.

G41 & C51
Powered
Crossovers

Two drive options are available for
Meridian Remote Active loudspeakers, both utilising the same plug-in
crossover modules supplied with the
loudspeaker. The G41 provides eight
channels of amplification which can be
configured as four pairs of treble/bass
amplification or three pairs of treble/
bass plus two channels full-range. The
G41 has a standard Meridian G-Series
enclosure.
Additional details overleaf.
The C51 offers five pairs of treble/bass
amplification and is a member of our C
Series range of custom install products.
Separate data sheet available.

Mounting Frames

In-wall Series

Flush-mount Series

350
Series

330
Series

320
Series

Remote Active Systems
Outline Specifications
A200Z
System

Bass driver
Tweeter
Frequency response
Impedance
Sensitivity (1W/1M)
Power handling
Hole cut-out diameter
Outer frame diameter
Depth for installation
Weight

A320
System

A330

2-way in-ceiling/wall unit
supplied with G41 crossover card
8in diameter, silver paper cone, rubber surround
1in diameter, aluminium diaphragm
52Hz-20KHz
Nominal 8Ω
89dB/1Watt@1m
10-80W
9.37in/238mm
10.75in/273mm
4in/101.6mm
4.5lbs/2kg approx.

System

Bass driver
Tweeter
ABR
Impedance
Amplification

A350
System

Bass drivers
Tweeter
ABRs
Impedance
Amplification

2-way in-wall/ceiling* unit with G41 crossover card.
Van den Hul internal wiring throughout
6.5in/165mm metal-coned driver
Wide-dispersion ribbon device
Nominal 8Ω
G41 Powered Crossover/Amplifier recommended

Bass driver
Tweeter
Impedance
Amplification

Crossover cards

2-way in-wall unit with Auxiliary Bass Radiator (ABR).
Supplied with G41 crossover card.
Van den Hul internal wiring throughout
6.5in/165mm metal-coned driver
Wide-dispersion ribbon device
8in/200mm Auxiliary Bass Radiator
Nominal 8Ω
G41 Powered Crossover/Amplifier recommended

2-way in-wall unit with dual bass drivers and ABRs.
Supplied with G41 crossover card.
Van den Hul internal wiring throughout
2 x 6.5in/165mm metal-coned drivers
Wide-dispersion ribbon device
2 x 8in/200mm Auxiliary Bass Radiators
Nominal 4Ω
G41 Powered Crossover/Amplifier recommended
designed for the G41 Powered Crossover/Amplifier
(see below) are supplied with each loudspeaker. These
feature premium quality Burr-Brown operational
amplifiers and four-layer printed circuit boards.

Specify in-wall or flush-mount configuration (see dimensioned drawings inside). Rough-in boxes available separately.
*The 320 units may optionally be ceiling-mounted; the 330 and 350 are not suitable for in-ceiling use.
On-wall versions available later in 2006: contact Meridian for details.
Passive versions are detailed in a separate datasheet.

G41 Powered Crossover/Amplifier
The G41 powers 200 and 300 Series
installation loudspeakers in Remote
Active mode. It features active crossovers,
switched balanced and unbalanced
inputs, and employs the same lowfeedback topology as Meridian’s
G55/56/57 amplifiers, which was
developed from that used in the flagship
DSP8000.

and 350, and each module includes a
pair of LEDs that confirm the positive
and negative power-rails are operative
and identifies the crossover installed by
means of the colour combination. 200
Series units can use the crossover or can
be driven in passive configuration with
the fourth amplifier pair configured for
two channels of full-range operation.

Eight channels of approximately100W/8Ω
(180W/4Ω) RMS amplification are
provided, grouped into four pairs, each
providing bass and tweeter outputs from
a full-range input.

Thermal, short-circuit and DC fault
protection circuitry is included. The G41
has soft start, fan output and trigger
input.

The fourth channel pair can also be
configured as two full-range amplifiers
for driving a pair of passive loudspeakers,
eg for surrounds. To do this, the righthand modular crossover card is removed
and replaced by one providing additional
full-range unbalanced inputs.
Replacement labels identify the
reconfigured output terminals (see rear
panel illustration below).
The crossover modules take the form of
cards which can be inserted at the time
of installation to configure the unit for
the speakers in use, and an appropriate
card is supplied with each loudspeaker.
Modules are available for the 320, 330
CHANNEL 1

CHANNEL 1

INPUT

OUTPUT

INPUT

CHANNEL 4
BALANCED

INPUT

CHANNEL 2
INPUT

BALANCED

UNBALANCED

OUTPUT

SS
CROSSOVER

CABLE LENGTH

OUTPUT

TRIGGER INPUT
5 - 30V ac or dc

MERIDIAN
CONTROLLED

CHANNEL 2
CROSSOVER

CHANNEL
4
FULL-RANGE
OUTPUTS

FAN OUTPUT

OUTPUT

R

BA

SS

A

POWER INPUT ~50-60Hz 30 - 1200VA MAX

TE

FULL-RANGE INPUTS

ON

CH

CHANNEL 3

ABNA
NSS
EL

EE

UNBALANCED

BA
SHORT
<10M
LONG
>10M
CHANNEL CHANNEL
1+2
3+4

CHANNEL 1

TW

EE
TE
R

UNBALANCED

SS

CHANNEL 3

CROSSOVER

OFF
ANDG41-07
MADE INMODULE
ENGLAND BY
JS26234 DESIGNED
MERIDIAN
ACCESS PANEL
MERIDIAN AUDIO LTD
CHANNEL 1 DESIGN
& 3 IssAND
C E/UP
09/12/05
COPYRIGHT 2005
G41 MULTI-CHANNEL LOUDSPEAKER CONTROLLER

JS26305 MERIDIAN G41-05 REAR PANEL E/UP 06/01/06

T +1 (404) 344 7111
F +1 (404) 346 7111

TW

UNBALANCED

BA

R

CTHW
ANE
NET
ELER
B

TE

Meridian America Inc
8055 Troon Circle, Suite C
Austell, GA 30168-7849

CHANNEL 2
BALANCED

TW

EE

T +44 (0) 1480 445678
F +44 (0) 1480 445686

Meridian Remote Active loudspeakers
may also be driven by the C51 rackmount unit, part of our C Series custom
installation range. A separate data sheet
is available on request.

CHANNEL 3
BALANCED

A unique feature of the G41 is a cablelength compensation switch. The
amplifiers have a negative impedance to
cancel out cable effects. This dramatically
improves performance, tightening the
bass response and giving significantly
improved control and punch. Two switchselectable settings are provided, one
for cables under 10m and the other for
cables over 10m in length. A separate
rear-panel switch is provided for each
pair of amplifiers.

Meridian Audio Limited
Latham Road
Huntingdon
Cambridgeshire PE29 6YE
England

CHANNEL A
CAUTION REPLACE WITH SAME TYPE FUSE
T10AL for 100-120V
T5AL for 220-240V

CHANNEL B
SERIAL NUMBER

VOLTAGE

JS26237 MERIDIAN G41-10 FULL RANGE ACCESS PANEL Iss C
E/UP 9/12/05

TESTED

JS26239 MERIDIAN G41-11 FRONT RANGE LABEL Iss 1
E/DOWN 9/12/05

www.meridian-audio.com
This is a preliminary document and is subject to
significant change without notice.
Meridian retains the right to improve or modify product
specifications and design at any time. E&OE.

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