Equipped with input connectivity choices, the G55 includes both single ended and balanced analogue inputs. Balanced inputs provide the ultimate in noise rejection and are the connection method of choice from a G65 surround controller. For larger and more demanding systems, the G55 incorporates a unique bridging system for higher power and flexibility. In this mode, four of the five channels can be bridged, providing two channels of 300 watts, and a single channel of 100 watts. This provides optimum performance with any loudspeaker in any room location.
A 12-volt trigger input allows the G55 to be activated on a signal from your preamp or surround controller. This makes for simple, care free, and efficient operation. This trigger is optically isolated from the amplifier itself, eliminating any passage of noise. When in stand-by mode, a standing voltage is maintained on the power rails and supply components. As a result, you do not have to wait for the amplifier to “warm up.” Simply switching on the G55 will provide optimum performance, immediately.
G55 is designed to use the same G Series Rack kit, making it simple and easy to install. A separate output trigger controls intake and exhaust fans integrated into the rack kit. This ensures the fans operate when the G55 is on, keeping it at its optimal temperature. This provides not only the best performance, but also ensures maintenance free use when installed into an equipment rack.
Special attention has been paid to ensure the amplifiers deliver the power that is required at any given moment. Massive twin low-noise toroidal power transformers provide power to no less than 25 selected pairs of output devices, carefully temperature-controlled for optimum operating characteristics and efficiency. The result is a clear, open sound with detail as well as punch where it is required – at any volume level.
The G55 includes the latest power amp developments from Meridian, first employed in the flagship DSP8000 Digital Loudspeaker systems, and share many common design parameters. These innovations include a unique, ultra-low feedback design, and capacitor-free signal path. These combine to provide incredible control and speed for fast, tight bass and outstanding sound quality from a passive loudspeaker.
With balanced analogue inputs and 12-volt trigger, G57 compliments both Meridian 800 and G Series in either a two-channel system, or, as the main channels of a high performance analogue theatre when combined with G55.
Meridian “Super Balanced” technology provides balanced operation from single-ended connections, providing more music with less noise.
Dual binding post per channel allow for bi-wiring of passive loudspeakers for clearer sound and better bass.
Single-ended and balanced inputs ensure the broadest compatibility with any stereo or surround controller.
Capacitor free signal path ensures fast and accurate low frequency control for outstanding bass reproduction.
12-volt on/off triggers make for simple and care free operation.
Standby mode maintains voltage rails eliminating “warm up” time for instant optimum sound quality.
Full DC/thermal protection for carefree operation at any volume level.
Balanced on XLR-3F connectors and unbalanced on phono
2 output sets per channel, terminal posts
5 channels at 100W into 8Ω, or 2 channels at >300W into 8Ω (bridge mode)
Less than 0.01% input to output
Signal/Noise Better than –100dB
Kit available from Meridian authorized dealers
Rear-panel power switch; per-channel switches for balanced or single-ended input; Bridge/ Stereo mode switches on channels 1 and 5
Wide voltage-range (5–30V, AC/DC) trigger input for remote standby/on switching
Power/Fault indicator and per-channel operation LEDs POWER Versions: 100, 110, 115, 220, 230, 240 Vac, 50/60Hz. Standby 31VA, Idle 58VA, 5 channels driven 748VA
25 pairs of 15amp output devices and 68,000μF of audiophile-grade PSU smoothing capacitors. 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 finish in metal & glass
Width: 440mm (17.32in); Depth: 350mm (13.78in) plus connectors; Height: 132mm (5.20in)
23 kg (51 lbs)