This massive amplifier proves just how much difference an amplifier can make in high quality music reproduction. Its exceptional stability and low distortion along with its tremendous reserves of power, result in remarkably clean performance. Transient response is superb. Built-in metered adjustments. Beautiful precision construction. For superior stereo or monaural reproduction, Audio Classics offers the finest amplifier made today.

What is an Audio Classic?
It is an enduring work of excellence and authority. Timeless design, flawless performance, outstanding value and reliability. Potential classics are being developed by manufacturers today. Time alone can tell which of them will endure. Surely, they will be found among the companies which are today accepted as the leading authorities. Audio Classics trades in these products, products that will continue to deliver outstanding performance as the years go by. Audio Classics continuously searches for the best equipment for your home entertainment. After all, that’s what it takes to be an Audio Classic.

Audio Classics 9B
Vacuum Tube Stereo Power Amplifier

• Stereo Operation:
  50 WPC at 4 or 8 ohm load with EL34 tubes
  80 WPC at 4 or 8 ohm load with KT88 tubes
  
  
• Mono Operation:
  100 watts at 2 or 4 ohm load with EL34 tubes
  160 watts at 2 or 4 ohm load with KT88 tubes
  
  
• Total Harmonic Distortion:
  < 0.1% mid-frequencies at rated output
  < 0.3% 20 Hz at rated output
  < 0.3% 20 kHz at rated output
  
  
• Hum and Noise:
  > 90 dB below rated output
  
  
• Damping Factor:
  8 dB
  
  
• Frequency Response:
  +0, -3 dB 10 Hz to 100 kHz
  
  
• Input for Rated Output:
  1.2 volt RMS at 100k impedance bal/unbal
  
  
• Tube Complement:
  (4) 12AU7
  (4) EL34 or KT88
  Output tubes are not interchangeable
  
  
• Power Requirement:
  120 volt, 60 Hz, 250 watt
  
  
• Dimensions:
  17.5" x 8.287" x 15.876"
  (44.5 x 21.05 x 40.33) cm
  
  
• Weight:
  60 lbs (27 kg)
  shipping 70 lbs (32 kg)