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Integrated Digital Amplifier

Reproducing Audio with a Sense of Speed and Energy

The key difference between analog and digital amplification is the manner in which the input signal is amplified. Put simply, with analog amplification, the analog input signal is amplified without modification. On the other hand, with digital amplification, the analog signal is converted into a pulse (digital) signal and then amplified, before being converted back into an analog signal. Generally speaking, a digital amplifier offers greater power efficiency (up to 90%) and a smaller chassis size, as there is no need for a large heat sink. Besides these advantages, Onkyo also believes it is possible to improve sound quality, as digital amplifiers have a greater ability to reproduce sound with speed and energy.This is the focus with the A-9355 digital amplifier. By countering spike noise with Onkyo’s Vector Linear (VL) Digital modulation circuit and negating voltage fluctuations through the power supply, the A-9355 is aimed at the music lover who wants to get the best out of their collection.The concept also draws on build quality that strives to take audio reproduction to its limits.


  • 70 W/Ch Minimum into 4Ù, 1 kHz, 2 Channels Driven, IEC
  • Exclusive Vector Linear (VL) Digital Technology for Accurate Conversion
  • All Discrete Output Stage Circuitry to Inhibit Audio Signal Interference
  • Optimum Gain Volume Circuitry to Preserve Signal Purity
  • Massive Power Transformer
  • Audiophile-Grade Capacitors
  • Low-Impedance,Thick Bus Plate for Perfect Grounding
  • Precision Motor-Driven Volume Control
  • Tone Control (Bass,Treble, Loudness On/Off)
  • Pure Direct Mode for Bypassing Tone Control
  • Discrete Phono Equalizer Circuitry for Superior Sound Quality
  • 5 Audio Inputs and 2 Outputs
  • Phono Input
  • Speaker A/B Drive
  • High-Rigidity,Anti-Resonant Chassis to Reduce Vibrations
  • Aluminum Front Panel and Volume Knob
  • Banana Plug-Compatible Speaker Posts
  • Gold-Plated Headphone Jack
  • Heavy-Duty Power Cord
  • Compatible with RI Dock for the iPod
  • RI (Remote Interactive) Remote Control



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Onkyo & Pioneer Corporation is pleased to announce that selected A/V receivers from Onkyo’s 2019 range have received… more

Press Release dated: 18 Sep 2019
Voice-control technologies, HDMI® support, and AccuEQ feature on Onkyo’s new Hi-Fi stereo receiver

TOKYO, JAPAN. September 3, 2019 — Onkyo & Pioneer Corporation, a driving force behind global home-entertainment and… more

Press Release dated: 3 Sep 2019
Onkyo’s new 11.2-Ch Flagship AVR builds on a legacy of electrifying sound with unique functions and a broad platform of next-generation audio-video features

TOKYO, JAPAN. September 3, 2019 — Onkyo & Pioneer Corporation today unveils its much-anticipated 11.2-channel flagship… more

Press Release dated: 3 Sep 2019
Firmware Update for IMAX® Enhanced and Dolby Atmos Height Virtualizer Released for Select Onkyo A/V Components

TOKYO, JAPAN. August 1, 2019 — Onkyo & Pioneer Corporation is pleased to release a firmware update today that… more

Press Release dated: 1 Aug 2019
Termination of Gracenote music recognition service on certain Onkyo products

Dear Valued Customer, We regret to inform you that we will terminate Gracenote music recognition service from the ONKYO… more

Press Release dated: 2 Jul 2019