This is Meridian’s latest model G-Series stereo power amplifier, which originally sold for $7,000.00 in the USA market. It was purchased new in 2016 and has not been powered or used at all since Q2 2017.
Note that this G57 was integrated into an already existing system comprising Meridian 800-Series reference source, VTL vacuum tube line and phono preamplifiers, Transparent Reference Gen 5 cables and power products throughout, plus Wilson Audio speakers. Its introduction was commanding, headroom extended with the amp/speaker synergy having flow while maintaining delicateness, articulation, musicality and incredible image focus.
In a nutshell, the amp is very natural sounding and vacuum tube-like, but maintains speed articulation and explosiveness typically only found in upper tier cost-no-object high-current solid-state amp designs.
Meridian describe this as a “powerful Two Channel Power Amplifier. Suitable for a variety of applications the G57 includes both balanced XLR-3F analogue inputs and unbalanced phono inputs. The unbalanced inputs are converted to balance before they enter the amplifier itself, using Meridian’s proprietary ‘Super Balanced’ technology. The G57 combines power, clarity and flexibility for the ultimate in 2-channel amplifier performance at any volume level.”
2 x 200W into 8Ω continuous amplification driving both channels. 2 channels at 200W into 8Ω, or 1 channels at >650W into 8Ω (bridge mode)
1-100kHz frequency response -/+ 2dB – Perfect for high resolution audio
Double skinned metal and glass construction
RCA and XLR analogue inputs
TECHICAL DETAILS (from Meridian’s site):
Balanced on XLR-3F connectors
2 output sets per channel, terminal posts
Distortion – less than 0.01% input to output
Signal/Noise -better than –100dB
2 channels at 200W into 8Ω, or 1 channel at >650W into 8Ω (bridge mode), ~1000W into 4Ω
Wide voltage-range (5–30V, AC/DC) trigger input for remote standby/on switching
Power/Fault indicator and per-channel operation LEDs
Rear-panel power switch; per-channel switches for balanced or single-ended input; Bridge/Stereo mode
DIMENSIONS / WEIGHT
HEIGHT: 132mm [5.2in]
WIDTH: 440mm [17.32in]
DEPTH: 350mm [13.78in] plus connectors
WEIGHT: 24kg [53lbs]
Kit available from Meridian authorised dealers
Version: 115V, 60Hz.
Standby 17VA, Idle 48VA, Both channels driven 600VA