CLASSIC A53 POWER AMPLIFIER
The Classic A53 power amplifier is designed to be used with the Classic 5350SE integrated amplifier when bi-amping is required or with a separate pre-amplifier such as the Creek OBH 22 in a normal stereo configuration.
It utilises the same power amplifier section as the Classic 5350SE and the connection from either this integrated amplifier or a pre-amplifier is via two RCA (Phono) sockets on the rear panel, marked left and right.
The power amplifier has two sets of loudspeaker connections which can be used to either run two pairs of loudspeakers, or alternatively, to bi-wire one pair of loudspeakers. This can improve the sound of your system.
It is appreciated by Hi-Fi enthusiasts that leaving equipment powered-up continuously can improve the performance. However, this small improvement in sound quality comes at the expense of higher power consumption from the mains which will cost more for your electricity. It will also reduce the working life of the product and is not environmentally friendly. We recommend that if the equipment is not being used for a period of time, it would be better to switch it off from the mains switch on the front panel. Normal performance can be achieved in a short period of time.
SPECIFICATIONS
| Power Output (both channels into 8Ω) | 90 Watts |
| Power Output (one channel into 8Ω) | 110 Watts |
| Power Output (one channel into 4Ω) | 180 Watts |
|
Peak Output Current
into 1Ω
(50 mS)
|
> 25 Amps RMS |
| Total Harmonic Distortion (20 Hz – 20 kHz) | < 0.05% |
| Frequency Response | 3 Hz to 25 kHz – 1dB |
| Slew Rate | > 50 V per µS |
| Gain | x 48 or 33.6 dB |
| Input Sensitivity - One Channel driven/ 8Ω | 620mV line input/power amp input |
| Signal to noise ratio ‘A’ weighted | > 105 dB |
| Separation (line inputs) | > 60 dB @ 1kHz |
| Mains Power consumption (at idle) | 40 W |
| Mains Power consumption (full power 10% THD) | 340 W |
| Loudspeaker Outputs | A + B |
| Weight (net) | 7 kgs |
| Size (W x H x D) mm | 430 x 70 x 310 net |