Flagship 11.2-channel 8K reference AV receiver • 140W per channel (8Ω, 20Hz–20kHz, 0.08% THD, 2-ch driven) • 11 powered channels with 11.2-channel processing • dual ESS Sabre 32-bit audiophile DACs • THX® Certified Dominus & IMAX® Enhanced • Dirac Live® Full Bandwidth included with Dirac Live Bass Control ready • HDMI 2.1 8K/60p & 4K/120p with VRR, ALLM, & eARC • Klipsch Optimized Mode • Roon Ready, AirPlay 2, & Works with Sonos
The Onkyo TX-RZ70 11.2-Channel AV Receiver stands as Onkyo’s ultimate statement in home cinema engineering, reference acoustic power, and studio-grade room calibration. Delivering an authoritative 140 watts per channel into 8 ohms across eleven discrete amplifier stages, this flagship reference receiver powers immersive 7.2.4 or 9.2.2 Dolby Atmos, DTS:X, and Auro-3D speaker configurations natively without requiring external amplification. Built to the most demanding commercial audio benchmark with THX Certified Dominus certification, it integrates dual 32-bit ESS Sabre ES9026PRO audiophile DACs, full-bandwidth Dirac Live room correction with Dirac Live Bass Control upgrade readiness, 40Gbps HDMI 2.1 8K/60Hz and 4K/120Hz video switching, and dedicated Klipsch Optimized Mode speaker profiles to command flagship residential cinemas with pristine clarity and muscular low-end control.
Key Features & Innovations
THX® Certified Dominus Reference Performance — the Onkyo TX-RZ70 11.2-Channel AV Receiver holds THX’s highest commercial performance tier, engineered to deliver distortion-free reference theater volume levels in expansive cinema rooms spanning up to 6,500 cubic feet with viewing distances up to 20 feet.
Authoritative 11-Channel High-Current Amplification — outputs 140W per channel (8 ohms, 20 Hz – 20 kHz, 0.08% THD, 2-channels driven) via discrete Class AB Dynamic Audio Amplification (DAA), custom low-hum power transformers, and massive smoothing capacitors to drive 7.2.4 immersive setups natively.
Dual ESS Sabre 32-Bit Audiophile DACs — deploys premium ESS Sabre ES9026PRO 32-bit HyperStream DACs across all channels, achieving an ultra-wide dynamic range, vanishingly low jitter, and unprecedented micro-detail on both stereo music and multichannel movie soundtracks.
Dirac Live® Full Bandwidth & Bass Control Ready — includes a full-frequency (20 Hz to 20 kHz) Dirac Live room correction license out of the box, with built-in hardware support for optional single- or multi-subwoofer Dirac Live Bass Control (DLBC) licenses to solve low-frequency room modes.
Uncompressed HDMI 2.1 8K Gaming & Video Suite — all rear HDMI ports support 40Gbps bandwidth for 8K/60p and 4K/120p HDR video pass-through, Dolby Vision, HDR10+, Variable Refresh Rate (VRR), Auto Low Latency Mode (ALLM), and eARC alongside Klipsch Optimized Mode and Roon Ready streaming.
FAQ — Onkyo TX-RZ70
How many channels can the Onkyo TX-RZ70 11.2-Channel AV Receiver power without an external amplifier?
The Onkyo TX-RZ70 11.2-Channel AV Receiver features 11 discrete internal amplifier channels and can directly drive a full 7.2.4 or 9.2.2 Dolby Atmos, DTS:X, or Auro-3D speaker layout simultaneously right out of the box.
What is the significance of the THX Certified Dominus rating on the TX-RZ70?
THX Certified Dominus is the absolute highest and most stringent performance standard established by THX, signifying that the receiver can reproduce cinema-level sound pressure with ultra-low distortion in large private screening rooms up to 6,500 cubic feet.
Does the TX-RZ70 include Dirac Live Bass Control?
The receiver includes a full-bandwidth Dirac Live license (20 Hz to 20 kHz) with the calibrated microphone; the optional Dirac Live Bass Control (DLBC) license for automated multi-subwoofer management is fully hardware-supported and can be purchased directly from Dirac.
Are the dual subwoofer outputs truly independent?
Yes. The TX-RZ70 features two discrete, independent subwoofer pre-out channels, allowing each subwoofer to be calibrated separately with independent delay, level, and crossover filter adjustments.
Why Buy From Us
Authorized Onkyo reference dealer providing 100% genuine factory-sealed flagship receivers backed by full manufacturer warranty protection
Experienced home theater audio designers available to advise on Dirac Live room calibration, 7.2.4 speaker layout planning, and HDMI 2.1 video routing
Dedicated post-purchase technical support for custom home automation integration, multi-zone configuration, and firmware updates
Fast, fully insured priority freight delivery in heavy-duty reinforced protective crating on every order
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