- Written by Ross Jones
- Published on 23 July 2012
Design of the Integra DTR 50.3 THX Select2 Plus Receiver
The DTR 50.3 has the familiar Integra look, with a long row of black input selector buttons along the bottom of the faceplate, flanked by a large silver volume button on the right and smaller silver power switch on the front of the unit.
The Integra is powered by a seven-channel amp rated at 135 watts per channel to all channels at full bandwidth (20Hz -20kHz) at 0.08% THD at 8 ohms per FTC power ratings. The DTR 50.3 does not use a toroidal transformer (only the top-of-the-line 80.3 receiver has one). The seven channels of amp power can be used to power a 7.1 surround system. Alternatively, two of the amp channels can be used to power a Zone 2 set of speakers, a set of Audyssey DSX Front High or Wide channels, or to bi-amp the front left and right speakers.
Speaking of Audyssey, the DTR 50.3 uses the MultEQ XT version of the software (the much heralded MultEQ XT32 is available on the next model up in the Integra line, the DTR 70.3). I've never had really been satisfied with the results of room correction software in my listening room (other than low frequency/subwoofer adjustment); however, that is due primarily to the peculiarities of my room rather than problems the software. Processing in the DTR 50.3 is handled Burr-Brown PCM 1690 24-Bit DAC's, along with a separate 32-Bit DSP chip for advanced processing chores. The DTR 50.3 has all of the latest processing modes one would expect in a high-end Integra product, along with THX processing modes and Loudness Plus.
On the video side, the DTR 50.3 is 3-D compatible via its HDMI v.1.4a. Video processing is furnished by the HQV Vida chipset, along with 4K upscaling by a Marvell Kyoto G2H chip (assuming you're one of the lucky few with a 4K capable display). The Integra is a network receiver, optimized for streaming music apps such as Pandora, Slacker, Spotify, along with SiriusXM iRadio. The DTR 50.3 is not Wi-Fi enabled; it requires either a wired Ethernet connection or external WiFi adapter to use the networked services. Integra supplied a USB-based WiFi adapter (UFW-1, MSRP $39), which plugs into the USB port on the front of the receiver. The USB jack also worked seamlessly with various flash drives, as well as my iPhone.
The back of the DTR 50.3 has seven HDMI inputs, which should be plenty for just about any situation, along with two HDMI outputs. You can send a signal to both HDMI outputs simultaneously, but the manual warns that if the two displays have different output resolutions, video signals may not be output from both HDMI Out Main and HDMI Out Sub at the same time. The Integra has three component video inputs, along with legacy S-Video and even composite video inputs. The DTR 50.3 also has five sets of analog audio input jacks, and a phono jack. Three coaxial digital and two digital optical inputs are included as well. Some of our prior measurements on products have shown significantly more jitter on digital audio signals when passed through HDMI (as opposed to S/PDIF digital audio), so I typically run a S/PDIF cable from my trusty Oppo DV
-980H player to one of the digital inputs of the receiver when playing Redbook CD's. Speaker binding posts are thoughtfully spaced across the bottom of the back panel, rather than crammed into a small block as on some other products.
The DTR 50.3 will fit in a standard equipment rack, and at 39.5 pounds is a solid but not unbearably heavy piece of equipment.