A-9050

About the A-9050

The Onkyo A-9050 is a high-performance integrated stereo amplifier released in 2012, combining classic analog power with modern digital audio processing. It delivers 75 watts per channel into 8 ohms with 0.08% total harmonic distortion, featuring a three-stage inverted Darlington circuitry and WRAT (Wide Range Amplifier Technology) for clear, dynamic sound. The amplifier includes a built-in Wolfson 192 kHz/24-bit DAC (WM8718) with one optical and two coaxial digital inputs, enabling playback of high-resolution and lossless audio formats such as WAV. It supports a moving-magnet phono input for vinyl playback and offers multiple analog inputs, subwoofer pre-out, headphone output, and speaker A/B drive with gold-plated RCA terminals and banana plug-compatible speaker posts. Additional features include phase-matching bass boost, direct mode switch, tone controls (bass, treble, balance), and a remote control. The chassis is a sturdy 1.6 mm full flat design with aluminum front panel and volume knob. Dimensions are approximately 17-3/16" (W) x 5-7/16" (H) x 13-11/16" (D), weighing about 23.1 pounds. The A-9050 is praised for its clean, detailed sound with good dynamic control and solid build quality, suitable for both analog and digital sources.