The A-9050 Integrated Stereo Amplifier offers the best of both worlds classic analog power and the latest in digital audio processing technology. Whether you’re transported by the mellow glow of vinyl, or just want to experience your computer based library with proper hi-fi sound, this is the amp for you. There are three digital inputs linked to a Wolfson® 192 kHz/24-bit DAC, which allow you to exploit the potential of lossless formats such as WAV. Gold-plated audio terminals and gold-plated banana plug-compatible speaker posts ensure a perfect connection for your CD player, tuner, and loudspeakers. However, it’s the sound quality that really puts this amplifier in a league of its own. The low negative feedback WRAT design breathes energy and vitality into recordings that can otherwise seem lifeless and flat. As well as DIDRC to eliminate digitally generated noise, the amplifier’s Three-Stage Inverted Darlington Circuitry boosts current flows and reduces distortion.Plenty of good clean power and a dash of Japanese audio innovation has resulted in a stereo amp that’s shaping up to become a new Onkyo class.

  • 75 Watts per Channel at 4 Ohms, 1 kHz, 0.08%, 2 Channels Driven, FTC
  • WRAT (Wide Range Amplifier Technology)
  • DIDRC (Dynamic Intermodulation Distortion Reduction Circuitry)
  • Three-Stage Inverted Darlington Circuitry
  • Phase-Matching Bass Boost
  • Wolfson® 192 kHz/24-Bit DACs
  • 96 kHz/24-Bit Capable Digital Audio Inputs(1 Optical and 2 Coaxial)
  • Two 10,000 micro farad Capacitors
Power Output 
8 ohms2 x 75 W/Ch
Dynamic Power 
4 ohms2 x 65 W/Ch
Audio in/out5/1
Phono input
WRAT (Wide Range Amplifier Technology)
DIDRC (Dynamic Intermodulation Distortion Reductio
Three-Stage Inverted Darlington Circuitry
192 kHz/24-Bit HD Audio Playback via Coaxial-
Tone control (Bass, Treble, Balance)
Wolfson® 192 kHz/24-Bit DACs
Two Large 10,000 microfarad Capacitors
3 Digital Audio Inputs (1 Optical and 2 Coaxial)
5 Analog Audio Inputs and 1 Output
Customized, Gold-Plated, Banana Plug-Compatible
Machined, Gold-Plated RCA and Phono Terminals-
Amplifier Section
Power Output75 W/Ch (8 Ohms, 1 kHz, 0.08% THD, 2 Channels Driven, FTC)
Total Harmonic Distortion + Noise0.08% (1 kHz, 1 W Output)
Damping Factor60 (1 kHz, 8 ohms)
Tone Control
Line175 mV/33 k-ohms
Phono MM4.8 mV/47 k-ohms
Rec out175 mV/2.2 k-ohms
Phono Overload100 mV (MM, 1 kHz, 0.5%)
Frequency Response10 Hz–100 kHz/+1 dB, -3 dB (Line 1)
Bass±14 dB, 100 Hz
Treble±14 dB, 10 kHz
PM Bass+8 dB, 80 Hz
Signal-to-Noise Ratio110 dB (Line, IHF-A) 80dB (Phono, MM, IHF-A)
Speaker Impedance4 ohms–16 ohms (A or B), 8 ohms–16 ohms (A + B)
Power SupplyAC 120 V, 60 Hz
Power Consumption160 W
Standby Power Consumption0.2 W
Dimensions (W x H x D)17 1/8" x 5 1/2" x 13" (435 x 139 x 330.3 mm)
Weight18.1 lbs. (8.2 kg)


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Integrated Stereo Amplifier, 75 W/Ch (8 Ohms, 1 kHz, 0.08% THD, 2 Channels Driven, FTC) - A-9050

  • Product Code: A-9050

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