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manages the temperature and current fl ow at
different volume levels.
Fully DC-coupled, the signal path contains no
capacitors, while those in the power supplies are
audiophile grade components.
The amplifi ers are of a unique low-feedback
design for minimum transient and interface dis-
tortion, offering superb clarity and transparency
right across the audible range, with an output
impedance that is extremely low and suitable
for virtually any high-quality third-party passive
loudspeaker system.
Trigger and other control signals are opti-
cally isolated from the amplifi er itself. When in
standby mode, a standing voltage is maintained
on the power rails and supply components. As a
result, you do not have to wait for half an hour
after switching on for optimum performance to
be achieved: it is there at once.
Two sets of outputs are provided per chan-
nel for bi-wiring, etc, on sturdy binding posts
colour-coded for easy reference and capable of
handling large-diameter high-quality
loudspeaker cables. The output terminals are
connected to the amplifi ers by Van Den Hul
silver-strand cable to avoid signal losses.
The amplifi er can be operated in bridge mode
by actuating a switch on the rear panel, in
which case the left channel input becomes the
input for the bridged pair and the inner output
terminals are bridged, power being derived
from the outer terminal pairs (see rear panel
diagram).
The amplifi ers include electronic protection
reset by power-cycling, with full DC and thermal
protection.
A front-panel indicator shows when the ampli-
fi er is in standby. When the unit is activated, an
LED illuminates for each channel. In the event of
thermal overload, the main indicator goes red
and the channel lights go out, showing that the and the channel lights go out, showing that the
unit is off-line. A pushbutton on the front panel
can be used to take the unit in and out of stand-
by, while fl exible 5-“30V AC/DC trigger capability
allows amplifi er power to be controlled remotely
along with the rest of a system.
Outline Specifi cations
Power Output: 2 channels at 200W into 8 Ω, or 1 channels at >650W
into 8 Ω (bridge mode), ~1000W into 4 Ω
Distortion : Less than 0.01% input to output
Signal/Noise : Better than -“100dB
Inputs : Balanced on XLR-3F connectors and unbalanced on
phono
Outputs : 2 output sets per channel, terminal posts
Construction : Dual-mono construction. Four pairs of output devices
and four audiophile-grade PSU smoothing capacitors
per channel. Ultra low impedance error-corrected
output stage. DC coupled, with no capacitors in the
signal path. Soft start and thermal management in
main assembly. Optimised magnetic design based on
DSP8000. Meridian black or silver fi nish in metal &
glass
Dimensions : Width: 440mm (17.32in); Depth: 350mm (13.78in)
plus connectors; Height: 132mm (5.20in)
Rack Mounting : Kit available from Meridian authorized dealers
Weight : 20 kg (44 lbs)
Controls : Rear-panel power switch; per-channel switches for
balanced or single-ended input; Bridge/Stereo mode
switches on channels 1 and 5
Trigger : Wide voltage-range (5-“30V, AC/DC) trigger input for
remote standby/on switching
Display : Power/Fault indicator and per-channel operation
LEDs
Power: Versions: 100, 110, 115, 220, 230, 240 Vac, 50/60Hz.
Standby 17VA, Idle 48VA, Both channels driven
600VA
G57 rear panel drawing (actual product may differ slightly)
Meridian Audio Limited
Stonehill, Stukeley Meadows
Huntingdon, Cambridge PE29 6EX
UK
Tel +44 (0) 1480 445678
Fax +44 (0) 1480 445686
Meridian America Inc
3800 Camp Creek Parkway
Building 2400 Suite 122
Atlanta GA 30331 USA
Tel +1 (404) 344 7111
Fax +1 (404) 346 7111
Email: info@meridian-audio.com
Web: www.meridian-audio.com
G57 2-Channel Power Amplifi er
Information contained in this data sheet is correct as far as possible, but Meridian Audio accepts no liability for errors or omissions. Trademarks are the property of their respective owners. Meridian Audio reserves the right to amend product specifi cations at any time.
Further technical details, images, product reviews and company history are available from Meridian Audio or from our web site, www.meridian-audio.com
©Text & images 2003 Meridian Audio Ltd.
G57DS v3.0 - 20.10.03 RE
