Audiophile Integrated Amplifier

Power and Clarity in One Sophisticated Device

Onkyo has declared war on distortion. The success of its campaign against noise is evident the moment you switch on the A-9070 Integrated Stereo Amplifier. 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’s four 15,000 µF capacitors 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. The unit 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. Details like an independent headphone amplifier, a phonograph equalizer, three digital audio inputs, four analog inputs, and gold-plated audio terminals/speaker posts speak of the highest build quality. 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.

Features

  • AWRAT (Advanced Wide Range Amplifier Technology)
  • DIDRC (Dynamic Intermodulation Distortion Reduction Circuitry)
  • 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 to Reduce Vibration
  • Symmetrical Layout of L/R Channels
  • Separate Wolfson® 192 kHz/24-Bit DACs (WM8742 x 2) for L/R Channels
  • Four Large 15,000 µF Capacitors
  • 1.2 mm-Thick Copper Bus Plate for Perfect Grounding
  • Four Amplifier Modes (Integrated Amp, Power Amp, Pre-Amp, Split Pre-Amp/Power Amp)
  • 3 Digital Audio Inputs (1 Optical and 2 Coaxial)
  • 3 Analog Audio Inputs and 1 Output
  • Main-In Terminal
  • Independent Headphone Amplifier
  • Discrete Phono Equalizer (MM/MC)
  • Speaker A/B Drive
  • Audio L/R Pre-Out
  • Customized, Gold-Plated, Banana Plug-Compatible Speaker Posts
  • Machined, Gold-Plated RCA and Phono Terminals
  • Auto Standby Function

General Specifications

  • 140 W/Ch at 4 Ohms, 20 Hz–20 kHz, 0.05%, 2 Channels Driven, IEC 
  • 180 W/Ch at 4 Ohms, 1 kHz, 10%, 2 Channels Driven, JEITA
  • 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)
  • Signal-to-Noise Ratio:
    107 dB (Line, IHF-A) 
    60 dB (Phono MM, IHF-A)
    70 dB (Phono MC, IHF-A)
  • WHD: 435 x 174.5 x 431 mm
  • Weight: 18.1 kg

 


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