Service information
Continual improvement policy
Arcam has a policy of continual improvement for its products.
This means that designs and specications are subject to
change without notice.
NOTE: All specication values are typical unless otherwise
stated.
Before returning your amplier for service, please check the
following:
Sound cuts out for no reason
If the temperature of the internal heatsink rises above a safe
level, then a thermal cutout inside the amplier will operate.
The power indicator on the front panel ashes and the
protection system temporarily removes the power to the
speakers. The system resets itself as the heatsink cools down.
With two pairs of low impedance speakers connected,
overloads are more likely. Overloading the amplier may
cause it to shut down because of overheating.
Note that because of the high output voltage from a CD
player, it is possible to drive the A90 at full power even
though the volume is not set at maximum.
Amplier does not switch back on
The A90 and P90 ampliers have a protection mechanism
which is activated if you switch the unit on immediately after
turning it off. If this mechanism activates, wait 30 seconds then
try again.
Technical specications
A90 P90
Continuous power output, per channel
Both channels, 8Ω, 20Hz–20kHz 90W 90W
Single channel, 4Ω, 1kHz 150W 150W
Distortion, 8Ω, 80% power, 1kHz 0.005% 0.005%
Inputs
Phono cartridge (optional module)
input sensitivity, MM 2.5mV
input sensitivity, MC 250µV
Line and tape inputs
Nominal sensitivity 250mV 700mV
Input impedance 22kΩ 22kΩ
Signal/noise ratio (CCIR) 105dB 112dB
Tone controls, max. boost/cut ±12dB
Preamplier outputs
Nominal output level 700mV
Output impedance <50Ω
General
Power consumption (maximum) 800VA 800VA (950VA for P90/3)
Dimensions W x D x H (including feet) 435 x 340 x 100mm 435 x 320 x 100mm
Weight (net) 9kg 9.5kg (10.5kg for P90/3)
Weight (packed) 10.5kg 11kg (12kg for P90/3)
Supplied accessories mains lead
CR-389 remote control
2 x AAA batteries
mains lead
E&OE
