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Onkyo A-9070

Integrated Amplifier
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Onkyo A-9070 Details

Onkyo A-9070 Integrated Stereo Amplifier: Power and clarity
  • 140 Watts per Channel at 4 Ohms, 20 Hz–20 kHz, 0.05%, 2 Channels Driven, FTC
  • Parallel Push-Pull Amplification Design with Three-Stage Inverted Darlington Circuitry
  • 192 kHz/24-Bit HD Audio Playback via Coaxial Inputs
  • New circuit board construction with internal struts for reduced vibration
  • Symmetrical layout of L/R channels
  • Separate Wolfson® 192 kHz/24-Bit DACs for L/R channels
  • Four large 15,000 µF capacitors
  • 0.05"-thick copper bus plate for perfect grounding
  • Four Amplifier Modes (Integrated Amp, Power Amp, Pre-Amp, Split Pre-Amp/Power)
  • AWRAT (Advanced Wide Range Amplifier Technology)
  • DIDRC (Dynamic Intermodulation Distortion Reduction Circuitry)

The moment you switch on the Onkyo A-9070 Integrated Stereo Amplifier, you know that Onkyo has succeeded in its campaign against noise. New DIDRC (Dynamic Intermodulation Distortion Reduction Circuitry) dampens super high frequency distortion. Closed ground-loop circuits, HICC (High Instantaneous-Current Capability), and vibration-damping construction combine to produce a startlingly pure sound across a wide dynamic range.

The unit has four 15,000 µF capacitors to keep plenty of power at the ready. Efficient parallel push-pull amplification paired with three-stage inverted Darlington circuitry works at reducing distortion to almost nil. Separate Wolfson® 192 kHz/24-bit DACs for both left and right channels improve performance.

It is also equipped with 192 kHz/24-bit HD audio playback to handle modern formats. Four discrete amplifier modes — integrated amp, power amp, pre-amp, and split pre-amp/power amp — offer flexibility when integrating other hi-fi components. The unit is designed with highest build quality offering details like an independent headphone amplifier, a phonograph equalizer, three digital audio inputs, four analog inputs, and gold-plated audio terminals/speaker posts etc. The superb craftsmanship, technological refinement, and attention to detail invested in the A-9070 make it worthy of serious consideration for those in the market for top-shelf hi-fi gear.

Additional Information

Name Onkyo A-9070
Sub Title Integrated Amplifier
Manufacturer Onkyo
Manufacturer Part# A-9070

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Power Output:

  • 4 ohms: 2 x 200 W

Dynamic Power:

  • HICC: 80 A
  • Audio in/out: 7/2
  • Phono input : Yes
  • AWRAT (Advanced Wide Range Amplifier Technology) : Yes
  • DIDRC (Dynamic Intermodulation Distortion Reduction Circuitry): Yes
  • Parallel Push-:ull Amplification Design with Three: Yes
  • 192 kHz/24-Bit HD Audio Playback via Coaxial: Yes
  • New Circuit Board Construction with Internal Strut: Yes
  • Symmetrical Layout of L/R Channels: Yes
  • Tone control (Bass, Treble) : Yes
  • Separate Wolfson® 192 kHz/24-Bit DACs: Yes
  • Four Large 15,000 µF Capacitors: Yes
  • 3 Digital Audio Inputs (1 Optical and 2 Coaxial) : Yes
  • 3 Analog Audio Inputs and 1 Output: Yes
  • Customized, Gold-Plated, Banana Plug-Compatible: Yes
  • Machined, Gold-Plated RCA and Phono Terminals: Yes
  • Independent Headphone Amplifier: Yes

Amplifier Section:

  • Power Output: 140 W/Ch (4 ohms, 20 Hz–20 kHz, 0.05%, 2 channels driven, FTC)
  • Dynamic Power:
    • 1 ohms: 450 W/Ch
    • 3 ohms: 230 W/Ch
    • 8 ohms: 100 W/Ch
    • Total Harmonic Distortion: 0.006% (Half power)
    • Damping Factor : 130 (1 kHz, 8 ohms)
  • Input Sensitivity and Impedance:
    • Line: 150 mV/47 k-ohms
    • Phono MM: 2.25 mV/47 k-ohms
    • Phono MC: 0.18 mV/100 ohms
  • Output Level and Impedance:
    • Rec out: 200 mV/2.2 k-ohms
    • Phono Overload: 70 mV (MM, 1 kHz, 0.5%)
    • Frequency Response: 10 Hz–100 kHz/+0 dB, -1 dB (1 W, Line) 1 Hz-250 kHz/+0 dB, -3 dB (1 W, 8 ohms)
  • Tone Control:
    • Bass: ±10 dB, 80 Hz
    • Treble: ±10 dB, 10 kHz
    • Signal-to-Noise Ratio: 107 dB (Line, IHF-A)
    • Speaker Impedance: 4 ohms–16 ohms (A or B), 8 ohms–16 ohms (A + B)


  • Power Supply: AC 120 V, 60 Hz
  • Power Consumption: 3.3 A
  • Standby Power Consumption: 0.1 W
  • Dimensions (W x H x D) : 17 1/8" x 6 7/8" x 16 15/16" (435 x 174.5 x 431 mm)
  • Weight: 39.9 lbs. (18.1 kg)