Onkyo TX-8470 Network Stereo Receiver 110W High Current HDMI ARC Phono
The Onkyo TX-8470 is a high-performance network stereo receiver meticulously engineered for the modern audiophile who refuses to sacrifice analog soul for digital convenience. At its heart lies a massive, custom-built high-current transformer and Class G amplification architecture, delivering a robust 110 watts per channel. This design ensures that the TX-8470 can drive even the most demanding floorstanding speakers with absolute grip and dynamic authority. By utilizing a premium AKM 32-bit/768kHz DAC (AK4452), the receiver uncovers the finest micro-details in high-resolution MQA and DSD files, providing a transparent, wide-open soundstage that brings the concert hall into your listening room.
Unlike standard stereo receivers, the TX-8470 is built with a "pure audio" philosophy, featuring an isolated circuit board for the MM/MC phono stage and gold-plated terminals to maintain signal purity. It serves as a modern connectivity hub with HDMI ARC (8K support) for seamless TV integration and a comprehensive suite of streaming capabilities, including Roon Ready, AirPlay 2, and Chromecast built-in. Whether you are spinning high-end vinyl on a Moving Coil cartridge or streaming lossless audio from TIDAL, the TX-8470 delivers a refined, high-fidelity experience that stands as a testament to Onkyo’s 80-year legacy of audio excellence.
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Features:
- High-Current Class G Amplification: Combines the efficiency of Class D with the musicality of Class AB, providing high current drive to control low-impedance speakers and reproduce transients with visceral impact.
- Premium AKM 32-bit DAC: The AK4452 Digital-to-Analog converter ensures ultra-low distortion and a high signal-to-noise ratio, specifically chosen for its natural, "velvet sound" characteristics.
- Isolated MM/MC Phono Stage: Features a dedicated, shielded circuit board with a high-grade phono equalizer that supports both Moving Magnet and Moving Coil cartridges for professional-grade vinyl playback.
- HDMI ARC with 8K Support: Simplifies your setup by allowing high-definition audio from your TV to be processed by the receiver's superior DACs, with support for 8K video pass-through on additional HDMI inputs.
- Roon Ready & Hi-Res Streaming: Fully compatible with Roon’s high-fidelity ecosystem, plus integrated support for Amazon Music HD, Spotify, TIDAL (MQA), and Deezer.
- Rigid Chassis Construction: A thick, anti-resonant metal chassis and aluminum front panel reduce mechanical vibration and electromagnetic interference, preserving the integrity of low-level signals.
- Pure Audio Mode: Shuts down digital circuitry and the front display to eliminate potential noise, ensuring the cleanest possible signal path for critical analog listening.
- Gold-Plated Terminals: Audiophile-grade gold-plated RCA inputs and transparent speaker binding posts ensure a lifetime of oxidation-free, high-conductivity connections.
Technical Specifications
- Amplifier Section:
- Power Output: 110 W/Ch (8 Ohms, 20 Hz–20 kHz, 0.08% THD, 2-Ch Driven, FTC)
- Amplifier Type: High-Current Class G Architecture
- Dynamic Power: 210 W (3 Ohms), 190 W (4 Ohms), 110 W (8 Ohms)
- THD+N (Total Harmonic Distortion + Noise): 0.08% (20 Hz–20 kHz, Half Power)
- Frequency Response: 5 Hz–100 kHz (+1 dB, -3 dB) (Direct Mode)
- Signal-to-Noise Ratio: 106 dB (Line, IHF-A), 80 dB (Phono MC), 82 dB (Phono MM)
- Digital & Network Audio:
- DAC Chipset: AKM AK4452 (768 kHz/32-bit)
- Supported Formats: DSD256, DSD128, DSD64 (Direct), MQA, FLAC, WAV, AIFF, ALAC to 192 kHz/24-bit
- Streaming Services: Roon Ready, AirPlay 2, Chromecast built-in, Spotify Connect, TIDAL, Amazon Music HD
- Connectivity: Dual-band Wi-Fi (2.4GHz / 5GHz), Bluetooth (SBC/AAC)
- Video & HDMI:
- HDMI Architecture: 4 In / 1 Out (ARC), Support for 8K/60, 4K/120, HDR10+, Dolby Vision
- HDCP Version: 2.3
- I/O Connections:
- Digital Inputs: 2 Optical, 1 Coaxial, 1 USB-A (Front/Rear)
- Analog Inputs: 3 RCA Line-in, 1 Phono (MM/MC Switchable)
- Outputs: 2 Subwoofer Pre-outs, 1 RCA Line-out (Zone 2), 6.35mm Headphone Jack
- Ethernet: 1 (Rear)
- General:
- Dimensions (W x H x D): 435 x 150 x 329 mm
- Weight: 9.0 kg (19.8 lbs)
- Power Consumption: 340 W (Operating), 0.1 W (Standby)
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