Audio Database


Pre-main amplifier with high response speed LED power indicator and microphone mixing circuit.

It is equipped with an LED power indicator with a response speed of 200 μ sec that displays music signals with 5 LEDs arranged symmetrically.

Uses a low distortion and low noise design that inherits the concept of 99A (SU-8099) Concentrated Power Block.

Model Rating
Type Stereo pre-main amplifier
Effective output (both channel drive) 25W + 25W (8 ohm, 40 hz to 20 khz)
Output Bandwidth (Both channel drive, 8 Ω) 10 Hz to 50 kHz -3dB
Total harmonic distortion factor 0.1%
Frequency characteristic Phono : RIAA standard curve ± 1.0 dB
Tuner, Aux : 10 hz to 80 khz -3dB
Signal-to-noise ratio (IHF-A) Phono:80dB
Tuner, Aux, Tape : 97 dB
Tone control Bass : ± 10 dB (50 Hz)
Treble : ± 10 dB (20 kHz)
Pwer 100 VAC, 50Hz/60Hz
Power consumption 55W
External dimensions Width 430x Height 97x Depth 240 mm
Weight 5.0kg