It makes sense comparing Marantz SR6012 vs Integra DTM-6 because they both are able to give some premium features.
A significant difference between the receivers in the number of channels, Marantz SR6012 has 9.2 versus 2.0 for Integra DTM-6. Regarding power, then SR6012 has such a W/Ohm ratio - 110/8, 150/6 when DTM-6 has a power of 80/8. The THD is the same and is 0.08%.
Characteristics of digital to analog converter (DAC) are different, 192 KHz/32-bit for SR6012 and AK4438 384 KHz/32-bit for the DTM-6. Only the SR6012 supports Bi-amping feature. The Marantz SR6012 can transmit an audio signal directly to the amplifier and bypasses any DSP processing.
WI-FI modules have the same characteristics: 2.4/5GHz. Rivals from our review have Bluetooth support. The Marantz SR6012 has support for AirPlay, AirPlay 2, and its competitor in our comparison - AirPlay. Spotify can be used on each receiver. The SR6012 can work with the audio stream from Deezer, TIDAL, Pandora, Napster, SiriusXM, TuneIn Radio, iHeart Radio, Sound Cloud, and the DTM-6 can receive a content from Deezer, TIDAL, Pandora, TuneIn Radio.
Only the Marantz SR6012 has support for High dynamic range (HDR). Only the SR6012 provides HDMI signal transmission in standby mode. The SR6012 can scale the input HDMI signal, unlike the DTM-6. Dolby Vision technology found support only on the SR6012. Only the SR6012 supports HDMI Audio Return Channel (ARC). The HDMI eARC is available only on the SR6012. Of the two receivers in our comparison, HDMI CEC is present in only the SR6012. These compared receivers have a built-in phono stage for connecting a vinyl player.
Each of the AV receivers from our review supports 2 Multi-room zones. The SR6012 supports voice control via Amazon Alexa, Google Assistant, Siri, Josh.AI, and the DTM-6 - Google Assistant. An ECO mode is only available for the SR6012. The setup assistant will help you configure Marantz SR6012.
Only the SR6012 has a Dolby Atmos multichannel audio format support. A surround technology DTS:X is supported only by the SR6012.