Audio Database

9440A
Commentary

A stereo power amplifier developed by Altech to drive its own speaker system under ideal conditions.

The circuit is of OCL direct coupling configuration, and high output of 200W + 200W in stereo and 800W in monaural is possible.

Die-cast is used for the front panel so that it can withstand severe conditions as a professional machine.
In addition to the pin plug, the input is also equipped with a canon plug as standard.

The balanced input transformer was optional.

Model Rating
Type Stereo power amplifier
Effective power Stereo : 200W + 200W (8 Ω, 20 Hz to 20 kHz)
Monaural : 800W (8 Ω)
Harmonic distortion factor 0.1% or Less (20 Hz to 15 kHz at Stereo Full Power)
0.25% or Less (at Monaural 400W output)
Frequency characteristic 5 Hz ~ 100 kHz ± 3 dB (at 1W)
20 Hz ~ 20 kHz ± 0.25 dB (1W input, 8 Ω load)
Input Sensitivity / Impedance 0.6V/13k Ω
Signal-to-noise ratio 100dB(20kHz)
Channel separation 80 dB (1 kHz, 8 Ω)
Gain 58.7dB
Pwer 120 VAC, 50Hz/60Hz
External dimensions Width 483x Height 178x Depth 279 mm
Weight 25.6kg