Ресиверы — Yamaha RX-A8A

The RX-A8A is the top model of Yamaha's AVENTAGE AV receiver range, an 11.2-channel model that can run large Atmos speaker layouts from one chassis without external amplification. It combines Yamaha's most rigid receiver construction with dual high-grade DACs, HDMI 2.1 video switching and independent outputs for up to four zones, positioning it as the control centre of both a dedicated cinema and a multi-room system.

Key specs that matter

Eleven amplifier channels are built in, with two independent subwoofer outputs. Output is rated at 150W per channel into 8 ohms (20Hz to 20kHz, 0.06% THD, two channels driven), and at 220W per channel under the European one-channel measurement. Decoding covers Dolby Atmos, DTS:X Pro and Auro-3D. The HDMI section offers seven inputs and three outputs with HDCP 2.3 and eARC, with three inputs accepting 8K at 60Hz, plus 4K at 120Hz, HDR10+, Dolby Vision and HLG. Streaming includes Wi-Fi, Bluetooth, AirPlay 2, Spotify Connect and MusicCast. The receiver weighs 21.4kg.

Engineering and use context

Digital-to-analogue conversion uses two ESS SABRE ES9026PRO 32-bit DACs, whose Hyper Stream architecture includes a THD compensation function to lower distortion. Yamaha pairs them with its D.O.P.G. (DAC On Pure Ground) concept, which removes potential differences between the grounds of successive audio circuit stages so that ground noise does not enter the analogue signal. Decoding and processing run on a Qualcomm QCS407 platform with a dedicated audio DSP. Mechanically, the chassis uses an H-shaped cross frame and a double-layer bottom plate, and a fifth foot, the Anti-Resonance Technology (A.R.T.) Wedge, sits at the front centre of the base to damp vibration from the power transformer, output transistors and heatsinks, as well as vibration fed back from the loudspeakers. Yamaha's Cinema DSP HD3 sound field processing and Dolby Atmos Height Virtualization are included for rooms without a full set of height speakers.

Pairing

With eleven powered channels, the RX-A8A can drive a 7.2.4 Atmos layout on its own, or run 5.2.4 with channels allocated to other rooms through its Zone 2, 3 and 4 outputs. The three HDMI outputs feed a projector, a TV and a second room at once, and ALLM, VRR and QFT support current games consoles. MusicCast links it to Yamaha wireless speakers elsewhere in the home. Pre-outs allow external power amplifiers for the front channels in larger rooms.

Alternatives

Yamaha's own RX-A6A offers a 9.2-channel AVENTAGE alternative for smaller cinema layouts.