User manual

MPA82000 Power Amplifier
seconds, metres and feet, calculated using the
speed of sound at 350 metres per second and 1150
feet per second.
Volume
The volume page controls individual gain for each
channel from –90 to +18dBu. It also features
individual channel mutes and channel polarity
switches.
Limiter
Individual limiters are provided for each amplifier
channel and allow separate control of limiter
threshold, rms window width, attack time, release
time and look ahead time. With such comprehensive
control of the limiter functions it is possible to achieve
excellent performance from the system while still
providing a high level of protection against drive unit
failure. However it is also possible that incorrect
settings will create very audible distortion to the
signal. Therefore some care has to be taken when
adjusting limiter parameters.
In particular fast limiter settings cause significant
degradation of low frequency signals so particular
attention has to be made when setting limiters for
bass or full-range signals.
Peak limiting takes place in the analogue domain.
Limiting is done by highly sophisticated laser trimmed
VCA's without any compression. Each limiter is
adjusted after amplifier configuration to insure
optimum performance. For further guidance please
contact us directly.
Copying settings between channels or between
presets
Right clicking on an individual channel tab allows
settings to be copied to a clipboard that can then be
pasted to another channel within the preset.
Right clicking on the Equaliser, Crossover, Delay,
Volume or Limiter tabs allows settings to be copied
to a clipboard that can then be pasted to another
preset.
Page 10