Integra Research DRX-R1.1

Integra Research DRX-R1.1 was introduced in 2018 and represented a flagship model of a manufacturer. It is equipped with 11 channel amplifier with 140 W (8 Ω, 1 kHz, 2 channel driven) power per channel and is capable of 11.2 maximum channel processing. It supports Dolby Atmos and DTS:X, passes 4K/60Hz video signal.

We evaluated the a/v receiver and gave 92 overall score out of 100. Our ranking system is based on the amplifier specifications, audio and video features, connectivity, multizone capabilities, radio and many other details.

For more details about the ranking please go to    Evaluation section.

In this section we present pros and cons of Integra Research DRX-R1.1.

In 2018 Integra released 5 new receivers. Here is the lineup:

You can view their side-by-side comparison here: Integra DRX-5.2 vs DRX-4.2 vs DRX-3.2 vs DRX-R1.1 vs DRX-7.1.

Integra Research DRX-R1.1's 11 channel amplifier can be assigned for different speaker configurations.

• Dolby Atmos Configurations: The following speaker configurations are supported for Dolby Atmos:
5.2.2, 5.2.4, 7.2.2, 7.2.4 with internal amplifier.
• DTS:X Configurations: The speaker configurations for DTS:X are the same as for Dolby Atmos:
5.2.2, 5.2.4, 7.2.2, 7.2.4 with internal amplifier.
• Configurations without height channels: There are also other speaker configurations available which do not include height channels:
5.2, 7.2 with internal amplifier.
• 2-ch Bi-Amp: Integra Research DRX-R1.1 allows you to bi-amp up to 2 main channels simultaneously. During bi-amplification two amplifiers are used for one speaker. One amplifier powers the midrange and tweeter section of the speaker and another amplifier powers the low frequency woofers. Each amplifier is less loaded and performs better. In order to use this feature speakers must have 2 pairs of connectors.

Dolby Atmos

Integra Research DRX-R1.1 supports Dolby Atmos with Surround Upmixer.

• Surround Upmixer: If the content is not mixed in Dolby Atmos then the Dolby surround upmixer will expand the audio to all channels including ceiling speakers. The upmixer has replaced the Dolby Pro Logic II family with improved upmixing algorithms.

DTS:X

Integra Research DRX-R1.1 supports DTS:X with Neural:X.

• Neural:X is an advanced upmixer that can take non DTS:X content and upmix it to the DTS:X speaker layout. It has replaced the DTS Neo family with improved flexibility.
• DTS Dialog Control: This function adjusts the dialog levels during playback of the DTS:X stream. It allows you to separately increase the dialog levels in contrast with the background sound and hear dialog easily even under noisy circumstances.

DECODING
Dolby Atmos
Dolby Atmos Height Virtualization
Dolby Atmos Music
Dolby TrueHD
Dolby Digital Plus
Dolby Surround Upmixer
Dolby Pro Logic
Dolby Digital EX
THX Listening Modes
DTS:X
DTS Neural:X
DTS Virtual:X
DTS Neo
DTS-HD Master Audio
DTS-HD High Resolution Audio
DTS 96/24
DTS Express
DTS-ES
IMAX Enhanced
Auro 3D with Auro-Matic Upmixer

Integra Research DRX-R1.1 features 7 HDMI inputs. It has 2 outputs: 1 Main and 1 Sub/Zone2.

• 4K/60Hz Passthrough: All inputs pass up to 4K 50/60Hz 4:4:4 video signal.
• Analog To HDMI Upconversion: The a/v receiver supports video upconversion, so you can connect your analog Component and Composite video sources and Integra Research DRX-R1.1 will output them via HDMI. This means that you will need only one HDMI cable to connect to your TV.
• BT.2020 Color Space: BT.2020 or Rec. 2020 is a color standard which delivers a wider color gamut compared to Rec. 709. It covers approximately 75% of the total visual spectrum while the Rec. 709 covers only 35%.
• HDCP 2.2 Copy Protection: All inputs and outputs are HDCP 2.2 compliant which is a requirement for 4K/HDR copy-protected content transmission.
• 3D Ready: Integra Research DRX-R1.1 is able to pass 3D video through HDMI.

HDR (High Dynamic Range)

Integra Research DRX-R1.1 supports HDR (high dynamic range) video formats such as HDR10, Dolby Vision and Hybrid Log-Gamma via HDMI ports. High dynamic range video has greater dynamic range than standard dynamic range (SDR) video with brighter whites and deeper blacks. The result is greater contrast and more details in dark and bright areas, better color and depth.

Enhanced Audio Return Channel (eARC)

Audio Return Channel (ARC) feature allows the compatible TV to send audio signal to the a/v receiver through the same HDMI cable which is used to send audio and video signals to the TV. So one HDMI cable is used to transfer audio signal in both directions. New Enhanced ARC will support uncompressed audio formats such as Dolby Atmos, DTS:X, Dolby TrueHD and DTS HD Master Audio whereas the previous ARC could support only Dolby Digital, Dolby Digital Plus, DTS, DTS HD, and PCM.

VIDEO FEATURES
HDR10
HDR10+
Dynamic HDR
BT.2020 color space
Dolby Vision
HLG (Hybrid Log Gamma)
HDBaseT Compatible	In: 1 Out: 1 RS-232: 1 (Pasth through) IR In: 1 (Path through) IR Out: 1 (Path through) Maximum Video Resolution: 4K 60 Hz (YCbCr 4:4:4)
Enhanced Audio Return Channel (eARC)
HDCP Version	2.2
QMS (Quick Media Switching)
ALLM (Auto Low Latency Mode)
VRR (Variable Refresh Rate)
QFT (Quick Frame transport)
3-D Ready
Video Signal Passthrough	up to 4K 50/60Hz 4:4:4

Integra Research DRX-R1.1 comes with AccuEQ Advance with AccuReflex™ room correction system and includes the calibration microphone.

• AccuEQ: First, AccuEQ detects the presence of speakers and evaluates the impedance of each. Next, it pinpoints their distance relative to the main listening position using the mic and sets suitable sound-pressure levels. Then it selects the optimal crossover frequency so that deeper bass rolls smoothly off to the subwoofer. Finally, AccuEQ performs frequency response equalization based on room-acoustic and speaker data collected via microphone. The sound-field is now tailored around the listening position, resulting in a more immersive and realistic in-film experience.

Integra Research DRX-R1.1 offers multi-zone playback which allows you to play different input sources in 3 different rooms.

Zone 2

• Powered Zone 2: You can use the unit's 2 amplifier channels by connecting Zone 2 speakers directly to the speaker terminals. The remaining 9 channels will be left for main zone amplification.
• HDMI Output: Integra Research DRX-R1.1 offers HDMI output for Zone 2. This means that it can send two different HDMI signals to two displays.
• Audio Pre/Line Output: If you have a dedicated amplifier for Zone 2 you can connect it to the a/v receiver via pre/line outs and use "pre out" option to control volume from the a/v receiver or use "line out" option - send fixed signal and then control volume on the Zone 2 amplifier.

Zone 3

• Powered Zone 3: You can use the unit's 2 amplifier channels by connecting Zone 3 speakers directly to the speaker terminals. The remaining 9 channels will be left for main zone amplification.
• Audio Pre/Line Output: If you have a dedicated amplifier for Zone 2 you can connect it to the a/v receiver via pre/line outs and use "pre out" option to control volume from the a/v receiver or use "line out" option - send fixed signal and then control volume on the Zone 3 amplifier.

Audio

• Phono Input: There is an MM phono input with built-in phono stage for connecting the moving magnet cartridge output of the turntable directly to the a/v receiver.
• Analog Pre-Outs: Integra Research DRX-R1.1 has 11.2 preamplifier outputs which allow you to connect the a/v receiver to the external power amplifier. You may want to use a high quality external amplifier for certain channels, usually for front L/R and center, and use the a/v receiver to power the rest.
• Analog Line Inputs: There are 6 line inputs for analog audio connection.
• Digital Inputs: 3 optical inputs and 2 coaxial inputs are available for digital audio connection.
• Headphone Output: There is a 6.3 mm (1/4") headphone output jack on the front panel.

Video

• HDMI:
Inputs: 7 (1 front)   Outputs: 2 (1 Main, 1 Sub/Zone2)
8K Inputs: 0
• Composite Video: Connect you VCR, Laserdisc player and other old video equipment with composite video cables.
Inputs: 2   Outputs: 0
• Component Video: Component video connection gives you the higher quality video compared to the composite video connection. So in case your old DVD player and other equipment do not have an HDMI output but have Component video output use this connection over the composite one. Integra Research DRX-R1.1 supports up to 480i/576i resolution on Component video connectors.
Inputs: 2   Outputs: 1

Front A/V Inputs

• HDMI

GENERAL
Brand	Integra
Series	Research
Model	DRX-R1.1
Type	A/V Receiver
Country	North America
Release Year	2018

AMPLIFIER
Channels	11.2
Power Output	140 W (8 Ω, 1 kHz, 2 channel driven)
Front Wide Channel Support
Amplifier Design	Hybrid Digital Low-Impedance, High-Current Amplifier
Non-Phase Shift Amplifier
VLSC (Vector Linear Shaping Circuitry)	All Channels
Optimum Gain Volume Circuitry
THX™ Certification	Select™ (previously known as Select2)
Continuous 6 Ω Rated
Certified 4 Ω Performance
Discrete Output Stage Circuitry
Bi-amp Capability

AUDIO FEATURES
Digital Signal Processing (DSP) Engine	Analog Devices SHARC (x3) 32-Bit DSP Chips
DAC	AKM AK4490 Stereo DAC for Front L/R 2 AKM AK4458 Multichannel DACs (x2) for Other Channels AKM AK4388 Stereo DACs (x2) for Zone 2 and Zone 3
DAC Specs	384 kHz/32 Bit for Front L/R 768 kHz/32 Bit for Other Channels 192kHz/24 Bit for Zone 2 and Zone 3
Maximum Channel Processing	11.2
Air Studios Monitor Certification
Dolby Atmos
Dolby Atmos Height Virtualization
Dolby Atmos Music
Dolby TrueHD
Dolby Digital Plus
Dolby Surround Upmixer
Dolby Pro Logic
Dolby Digital EX
THX Listening Modes
DTS:X
DTS Neural:X
DTS Virtual:X
DTS Neo
DTS-HD Master Audio
DTS-HD High Resolution Audio
DTS 96/24
DTS Express
DTS-ES
IMAX Enhanced
Auro 3D with Auro-Matic Upmixer
PCM	2-ch/Multi-ch Input
Network Audio Formats	FLAC, WAV, Apple Lossless, WMA, MP3, DSD, AIFF, MPEG-4 AAC, LPCM
Music Playback via USB	FLAC, WAV, Apple Lossless, WMA, MP3, DSD, AIFF, AAC, Dolby TrueHD
High Resolution Music Playback via USB and/or Network	up to 192 kHz
High Resolution Audio Formats via USB	FLAC, WAV, Apple Lossless, DSD, AIFF, AAC
Gapless Playback
DSD via HDMI	2-ch/Multi-ch Input
DSD via USB	2-ch Input
DSD to PCM Converter
USB DAC
DTS Dialogue Control
Dialog Enhancement
Dialog normalization
Dialogue Lift
Tone Control	All Channels
Compressed Music Enhancer	Advanced Music Optimizer
High-resolution Music Enhancer
THX Processing Mode
Audyssey Dynamic EQ
Audyssey Dynamic Volume
Audyssey LFC
Audyssey Sub EQ HT
Audyssey DSX
Direct Mode
Pure Audio Mode
Virtual Speakers	T-D (Theater-Dimensional)
Independent Subwoofer Outputs

CALIBRATION
Auto Speaker Calibration System with Mic.	AccuEQ Advance with AccuReflex™
Standing Wave Control	User Defined (x3) Standing Wave EQ
Distance Adjustment	0.1 - foot

VIDEO FEATURES
HDR10
HDR10+
Dynamic HDR
BT.2020 color space
Dolby Vision
HLG (Hybrid Log Gamma)
HDBaseT Compatible	In: 1 Out: 1 RS-232: 1 (Pasth through) IR In: 1 (Path through) IR Out: 1 (Path through) Maximum Video Resolution: 4K 60 Hz (YCbCr 4:4:4)
Enhanced Audio Return Channel (eARC)
HDCP Version	2.2
QMS (Quick Media Switching)
ALLM (Auto Low Latency Mode)
VRR (Variable Refresh Rate)
QFT (Quick Frame transport)
3-D Ready
Video Signal Passthrough	up to 4K 50/60Hz 4:4:4
Analog To HDMI Upconversion	Component**, Composite
Component Video Upscaling
Analog to Analog Video conversion
Component Video Maximum Resolution	480i/576i
isf Certified Calibration Control

CONNECTIVITY
Wi-Fi
Bluetooth
Works with Amazon Alexa
Google Assistant
Chromecast Built-In
Apple Siri
Works with SonoS
DTS Play-Fi
Remote Monitoring with ihiji
AirPlay	Airplay
Apple Product Connection	iPod, iPhone and iPad
Remote App	Integra Control Pro
InstaPrevue Input Source Prevue

TERMINALS
HDMI Inputs	7 (1 front)
HDMI Outputs	2 (1 Main, 1 Sub/Zone2)
8K Inputs
USB Input	1 (Rear)
USB DC Out Port
Optical Inputs	3
Optical Outputs
Coaxial Inputs	2
RCA Line Inputs	6
RCA Line Outputs
XLR Line Inputs
Phono Input
Multi-Channel Input
RCA Pre-Outs	11.2
XLR Pre-outs
Composite Video Inputs	2
Composite Video Outputs
S-Video Inputs
S-Video Outputs
Component Video Inputs	2
Component Video Outputs	1
Ethernet
Ethernet Switch
PC In
Front A/V Inputs	HDMI
Headphone Out	6.3 mm (1/4")
Detachable Power Cord	Oversized AC Cord

ZONES
Number of Zones	3
Powered Zones	2 and 3
Zone 2 Outs	HDMI, RCA Pre/Line Out
Zone 3 Outs	RCA Pre/Line Out
Whole House Mode
RS-232C Interface
+12V Trigger Output	3 (A:100 mA, B:25 mA, C:25 mA)
Remote (IR) Input/Output	2 / 1

MISCELLANEOUS
On-Screen Display	Advanced Graphical User Interface
GUI Languages	9
IP Control
Control4 SDDP
RIHD (Remote Interactive Over HDMI)
Smart Grid-Ready

RADIO
Analog Tuner	FM/AM
Presets	40
Digital Radio
Internet Radio	TuneIn
Pandora
Spotify
Tidal
Deezer
Napster
SiriusXM

CONSTRUCTION
Front Panel	Audiophile Grade Anti-Resonant Aluminum Front Panel
Solid Aluminum Front
Construction	Research Grade Construction
Speaker Terminals	11
Large Speaker Terminals	11
Color-Coded Speaker Terminals
Transparent High-Grade Speaker Terminals	Audiophile-grade Transparent Banana Plug-Compatible Speaker Binding Posts
Gold plated RCA terminals
Rack Mount Kit Available	IRK-180-4C

POWER
Power Supply	AC 120 V, 60 Hz
Independent Power Supply	2
H.C.P.S. (High Current Power Supply)	Massive High Power Transformer
Toroidal Transformer
Power Consumption	360 W
Standby Power	0.2 W
ECO Mode / Hybrid Standby Function

PHYSICAL
Dimensions (W x H x D)	435 mm x 197 mm x 446.5 mm 17-1/8" x 7-3/4" x 17-9/16"
Dimensions of Package (W x H x D)	565 mm x 325 mm x 547 mm 22-1/4" x 12-13/16" x 21-9/16"
Weight	19.1 kg (42.1 lbs)
Weight of Package	22.0 kg (48.5 lbs)

SPECIFICATIONS
Power Output (8 Ω, 1 kHz, 2 channel Driven, FTC)	140 W (0.08% THD)
Maximum Effective Power Output (6 Ω, 1 kHz, 1 channel driven, JEITA or IEC)	260 W (10% THD)
Dynamic Power per Channel (3 Ω, Front)	320 W
Dynamic Power per Channel (4 Ω, Front)	270 W
Dynamic Power per Channel (8 Ω, Front)	160 W
THD	0.04% (1 kHz, 100 W, 8 Ω)
Input Sensitivity and Impedance (Line)	200 mV/82 kΩ (Line)
Input Sensitivity and Impedance (Phono MM)	3.5 mV/47 kΩ
Rated Preout Level and Impedance	1 V/330 Ω
Rated Headphone Jack Output Level and Impedance	43 Ω
Rated Headphone Power Output	57 mW (32 Ω, 1 kHz, 10% THD)
Phono Overload	70 mV (MM, 1 kHz 0.5%)
S/N Ratio (Line, IHF-A)	108 dB
S/N Ratio (Phono MM, IHF-A)	90 dB
Frequency Response (Analog In)	5 Hz - 100 kHz/+1 dB, -3 dB (Direct/Pure Audio)
DSD Sampling Rates via HDMI	2.8 MHz
DSD Sampling Rates via USB	2.8 MHz, 5.6 MHz, 11.2 MHz
Video Input Sensitivity/Output Level and Impedance	1 Vp-p/75 Ω (Component Y) 0.7 Vp-p/75 Ω (Component PB/CB, PR/CR) 1 Vp-p/75 Ω (Composite)
Video Frequency Response	5 Hz - 100 MHz/+0 dB, -3 dB (Component)
Ethernet Standard	10BASE-T/100BASE-TX
USB Terminal	Ver. 2.0, 5 V, 1 A
FM Frequency	87.5 MHz - 107.9 MHz
AM Frequency	530 kHz - 1710 kHz
Warranty	3 Years

* - 480i/576i and 480p/576p only
** - 480i/576i only
*** - no 1080p/24 upconversion
**** - 1080p signal is not converted