ONKYO A-9070 Integrated Stereo Amplifier

A-9070

AWRAT (Advanced Wide Range Amplifier Technology)

Parallel Push-Pull Amplification Design with Three-Stage Inverted Darlington Circuitry

Four Amplifier Modes for the Ultimate in Versatility

Separate Wolfson® 192 kHz/24-Bit DACs for L/R Channels

New Circuit Board Construction

Separate Wolfson® 192 kHz/24-Bit DACs for L/R Channels
High-quality Wolfson DACs work to optimize analog audio performance on the A-9070. The receiver features dual 24-bit WM8742 DACs, which support sampling rates of up to 192 kHz. Although these DACs are specified to handle two-channel audio on a single chip, Onkyo employs separate chips for each stereo channel to ensure the most accurate digital-to-analog conversion.

New Circuit Board Construction
Rather than being directly connected to the chassis base, the circuit boards inside the A-9070 are cushioned by internal struts and affixed to the front, side, and rear panels. This method of construction prevents vibrations from the chassis from adversely affecting the circuit boards.
 
Audiophile-Quality Parts
To ensure optimal performance from the A-9070, Onkyo’s engineers incorporated a range of professional-grade parts. Four 15,000-microfarad capacitors and an extremely low-impedance 1.2 mm thick copper bus plate both contribute to achieving a smooth and stable power supply. Machined and gold-plated RCA and phono terminals ensure an extremely clean connection.

Technical Details

140 W/Ch at 4 Ω, 20 Hz–20 kHz, 0.05%, 2 Channels Driven, IEC

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

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