Meridian Audio G Series - Manual (Page 6)

I n t r o d u c t i o n
2
General features
Each of the G Series power amplifiers is based on modules that
feature a symmetrical design with fully electronically-balanced
inputs. Both balanced and unbalanced inputs are provided, but in
fact the unbalanced inputs are converted to balanced before they
enter the amplifier itself, using Meridian’s proprietary ‘superbal’
technology.
The discrete active input components are thermally and electrically
matched in pairs, and the amplifiers feature active bias control
throughout, with thermal sensing that carefully manages the
temperature and current flow at different volume levels.
Fully DC-coupled, the signal path contains no unnecessary
capacitors, while those in the power supplies are audiophile grade
components.
The amplifiers are of a unique low-feedback design for minimum
transient and intermodulation distortion, offering superb clarity
and transparency right across the audible range, with an output
impedance that is close to zero and suitable for virtually any high-
quality third-party passive loudspeaker system.
Special attention has been paid to ensure that the amplifiers can
deliver the power that’s required at any given moment. Massive
twin low-noise torroidal power transformers provide power to a
generous five selected pairs of output devices per channel (four on
the G56), carefully temperature-controlled for optimum operating
characteristics and efficiency, and with thermal protection for
reliability. The result is a clear, open sound with detail as well as
punch where it’s required.
Trigger and other control signals are optically isolated from the
amplifier itself. When in standby mode, a standing voltage is
maintained on the power rails and supply components. As a result,
you only have to wait for a short time after switching on for
optimum performance to be achieved.
Two sets of outputs are provided per channel 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 amplifiers by Van Den Hul
silver-strand cable to avoid signal losses.
The amplifiers include electronic protection, reset by power-cycling,
with full DC and thermal protection.
A front-panel indicator shows when the amplifier 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 unit is off-line. A push
button on the front panel can be used to take the unit in and out
of standby, while flexible 5-30V trigger capability allows amplifier
power to be controlled remotely along with the rest of a system.
G Series Power Amplifier 2 9/5/06 11:59:29 am