More than a high-powered reference A/V receiver, the DTR-70.4’s ultra-modern feature set, four-zone powered audio, and dual HDMI outputs can make integrated housewide entertainment a reality in your home

# Channels 9.2
POWER (8 Ω 20-20kHZ 0.7%) / CH
POWER (8 Ω 20-20kHZ 0.05%) / CH 140
Amplifier Frequency Response (WRAT) 5Hz - 100kHz
THX Certified
Continuous 6 Ω Rated
Certified 4 Ω Performance
Discrete Output Stages for All Channels
PUSH-PULL Amplifier Design
3-Stage Inverted Darlington Circuitry
Independent Block Construction (Amp/Preprocessor)
Shielded Toroidal Transformer
Independent Power Supply 4
High Quality Extruded Aluminum Heatsink
Bi-amp Capability For Front
Dolby TrueHD, Dolby Digital Plus Decoding
DTS-HD Master Audio,
DTS-HD Express Decoding
DTS Neo:X (Front High / Wide Channels)
Dolby Pro Logic IIz (Front High Channels)
Dolby Volume
THX Processing Modes & Loudness Plus
THX Media Director Pass-through
Digital Processing Crossover Network
Differential DAC Mode for Front Channels
Audyssey Room Correction & Calibration MultEQ XT32
Audyssey Sub EQ HT
Audyssey MultEQ Pro / Installer Ready
Audyssey DSX (Front High / Wide Channels)
Audyssey Dynamic EQ & Dynamic Volume
Audyssey Movie / Music Modes X / X
GAME Surround Modes
(Rock, Action, Sports, Role
Advanced Music Optimizer to Enhance
DSD Processing / Direct Mode X / X
192K / 24-Bit Audio DAC ✓ (x7)
192K / 32-Bit Audio DAC
Vector Linear Shaping Circuitry (VLSC)
32-Bit DSP Chip for Advanced Processing ✓ (x2)
Ultra-Low-Jitter Circuitry to Improve Audio
Adjustable Crossover by Channel Pair 40/45/50/55/60/70/80/90
Accurate Speaker Distance Setting 0.2-foot
A/V Sync Delay (by Source) 800ms
Multi-Band Speaker EQ 15 Band
ISF Certified Calibration Controls (ISFccc) ✓ (w/Gamma Curve Edit)
Picture Control Settings per Source
HDMI v1.4a (3D Support, Audio Return Channel)
Deep Color, x.v.Color, Lipsync, CEC Support
HDMI Inputs / Output(s) 9 / 2
Front Panel HDMI Input
MHL (Mobile High-Definition Link)
InstaPrevue Technology (PIP for HDMI Sources)
HDMI Upscaling & Upconversion ✓ (HQV Vida)
1080p Upscaling ✓ (HQV Vida)
4K Upscaling ✓ (Qdeo by Marvell)
D-Sub (15-pin) VGA Input
Component Video Inputs / Output(s) 2 / 1
Component Video Upscaling & Upconversion
Composite Video Inputs / Output(s) 5 / 1
S-Video Inputs / Output(s)
Digital Audio Inputs (OPT / COAX) 3 / 3
Analog Audio Inputs / Output(s) 8 / 0
Phono Input
Front Panel A/V Input
Multi-Channel Input
Analog Pre-outs 11.4
iPod Ready/iPhone Ready ✓ (Direct Digital USB Input)
HD Radio
Network Audio Steaming
(Windows 7, DLNA v1.5 Ce
"Home Media" Sharing
Apple Lossless, DSD, Dolby TrueHD Playback via Net
Pandora, Rhapsody, vTuner, SiriusXM iRadio
Spotify, Slacker, Aupeo!,
USB Input for Streaming Audio ✓ (Front & Rear)
Wireless Network Ready via USB ✓ (Optional UWF-1)
Bluetooth Ready via USB ✓ (Optional UBT-1)
Firmware Updates via Network / USB X / X
Firmware Update Notification
Powered Zone 2/ Zone 3 / Zone 4 X / X / X
Fixed or Variable Zone 2 / Zone 3 / Zone 4 Line Ou X / X / X
Zone 2 / Zone 3 / Zone 4 Subwoofer Output X / X / X
Zone 2 Video Output Composite & HDMI
Dedicated Zone 2 AM/FM Tuner
Bi-directional RS-232 Control Port
Bi-directional Ethernet Control Port
Rear Panel IR Input / Output 2 / 1
RIHD (Remote Interactive over HDMI)
RI System Control
12V Trigger (w/adjustable delay) Assignable (x3)
Pre-programmed / Learning Remote X / X
GUI for Remote Control Programming
GUI for Setup Menu
Home Menu / Quick Setup Menu X / X
Bi-directional Remote Control Setup
Activity Remote
Input Name Edit
HDMI Standby "Through" Mode ✓ (Selectable)
Setup Store & Recall Function
Screensaver Function
Hybrid Standby to Reduce Power Consumption
Solid Aluminum Front Panel
Aluminum Volume Knob ✓ (Sand Finished)
Detachable AC Cord
Rack Mount Kit Available IRK-180-4A
Warranty 3 YEARS
Amplifier Section
Power Output (8 Ω, 20 Hz-20 kHz, FTC) 140W /Channel (8 Ω)
Dynamic Power320W /Channel (3 Ω)
270W /Channel (4 Ω)
160W /Channel (8 Ω)
THD (Total Harmonic Distortion)0.05%(Power Rated)
Damping Factor60 (Front, 1 kHz, 8Ω)
Input Sensitivity and Impedance200 mV/47 kΩ (LINE)
Rated RCA Output Level and Impedance1 V/470 Ω (PRE OUT)
Maximum RCA Output Level and Impedance5.5 V/470 Ω (PRE OUT)
Frequency Response5 Hz–100 kHz/ +1 dB-3 dB (DIRECT)
Tone Control±10dB, 50 Hz (BASS)
±10dB, 20 kHz (TREB)
Signal to Noise Ratio110 dB (LINE, IHF-A)
80 dB (Phono MM, IHF-A)
Speaker Impedance4 Ω–16 Ω
Video Section
Input Sensitivity/Output Level and Impedance1 Vp-p/75 Ω (Component Y)
0.7 Vp-p/75 Ω (Component Pb/Cb, Pr/Cr)
1 Vp-p/75 Ω (Composite)
Component Video
Frequency Response5Hz - 100MHz, -3 dB
Tuner Section
Tuning Frequency Range87.5 MHz– 107.9 MHz
Tuning Frequency Range522/530 kHz–1611/1710 kHz
Preset Channels40
Power SupplyAC 120 V, 60 Hz
Power Consumption11.0 A
Dimensions (W X H X D)17 1/8" x 7 13/16" x 17 15/16"
435 × 198.5 × 455 mm
Weight54.0 lbs (24.5 kg)