Yamaha AX-900 Integrated Amp

Yamaha AX-900 Integrated Amp

Yamaha´s top of the line powerhouse in good as new condition. This amp has got it all. Extremly suvereign power and control. Basically, a Yamaha C-50 + M-50 in one box.

Please refer to the technical details for more information.

Connections:

Number of inputs:
Phono MM/MC, tuner, 2 x tape, DAT, aux, CD, preamplifier.
Number of outputs:
2 x speakers, 3 x rec-out, headphones, power amp.


Technical Data:

Continuous power (at distortion factor)
8 Ohm: 2 x 130 Watt at 0,005 %
6 Ohm: 2 x 150 Watt at 0,008 % (DIN)
4 Ohm: 2 x 217 Watt at 1,000 % (according to DIN)

IEC power

4 Ohm, 1 kHz: 140 Watt (1 % distortion)
Dynamic power
8 Ohm: 2 x 180 Watt
4 Ohm: 2 x 320 Watt
2 Ohm: 2 x 440 Watt
1 Ohm: 2 x 520 Watt
Buffering : 2 x 22.000 µF
Total harmonic distortion: 0,005 %
Intermodulation distortion
CD, Video-AUX, Tuner, Tape (up to Speaker Out 130 Watt / 8 Ohm): 0.002 %

1 Watt / 8 Ohm: 0.003 % * Power bandwidth

Power bandwidth
8 Ohm, 65 Watt, distortion factor 0.03 %: 10-50,000 Hz
Attenuation factor: 150 (8 Ohm, 1 kHz)
Input (Sensitivity / Impedance)
Phono MM: 2.5 mV / 47 kOhm
Phono MC: 160 µV / 220 Ohm
Tuner, CD, Aux, DAT, Tape: 150 mV / 47 kOhm
Output (level / impedance)

Rec-Out 150 mV / 470 Ohm

Headphones 0.93 V / 8 Ohm (distortion factor 0.005 %)
Frequency response CD, Video-AUX, Tuner,
Tape, Main-In: 20-20,000 Hz (+0db, -0.5 dB)
Tone control:
Bass: ±10 dB at 20 Hz, crossover frequency 350 Hz.
Mids: ±10 dB at 1,000 Hz
Treble: ±10 dB at 20,000 Hz, crossover frequency 3,500 Hz.
Loudness:
Level-related attenuation control
Attenuation -40 dB (1 kHz)
Subsonic: 15 Hz / 12 dB/octave, switchable
Mute: yes (-20 dB)
Direct/Line-Straight: CD-Direct, tone control switchable
Ripple spacing (short-circuited): 106 dB
Stereo channel separation: 70 dB (volume -30 Db)
Signal-to-noise ratio
Phono MC: 74.5 dB; IHF value 72 dB

Phono MM: 78 dB; IHF value 92 dB CD, Video-AUX, Tuner, Tape: 85 dB; IHF value: 100 dB

Intermodulation distortion
CD, Video-AUX, Tuner, Tape (nominal output/8 Ohm): 0.002 %
1 Watt / 8 Ohm: 0.003 %
Gain tracking error
0 dB to -60 dB: 2 dB


Special Features:

2 x record selector
Accessory connectors
Mono/stereo switch
High filter switchable (10 kHz / 12 dB/octave)
Pre- and power amplifier can be separated, jumper plug enclosed