Denon AVR-S670H vs Denon AVR-X1800H review

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An affordable AV receiver is always a good option to consider, so Denon AVR-S670H vs Denon AVR-X1800H comparison definitely makes sense.

Amplifier

A significant difference between the receivers in the number of channels, Denon AVR-S670H has 5.2 versus 7.2 for Denon AVR-X1800H. Regarding power, then AVR-S670H has such a W/Ohm ratio - 75/8, 100/6 when AVR-X1800H has a power of 80/8, 120/6. The THD is the same and is 0.08%.

Audio features

Competitors' digital to analog converter (DAC) is identical to 192 KHz/32-bit. None of the models support Bi-amping. Each of the AV receivers can transmit an audio signal directly to the amplifier and bypasses any DSP processing.

Connectivity

WI-FI modules have the same characteristics: 2.4/5GHz. Rivals from our review have Bluetooth support. The Apple Music service is implemented on considered devices: AirPlay, AirPlay 2. Spotify can be used on each receiver. Deezer, TIDAL, Pandora, SiriusXM, Napster, SoundCloud, Amazon Music, Amazon Music HD, MOOD:Mix - all of these streaming services have found application in each of the models.

Video features

Both AV receivers support HDR10+ technology (High dynamic range). Compared AV receivers retain the quality of 4K/120Hz signal when transmitting from a source to a TV or projector. HDMI signal transmission in standby mode is implemented in each of the devices. Both rivals can scale the resolution of the incoming HDMI signal. Dolby Vision technology found support only on the AVR-S670H.

Extensive connections

Each receiver has 6/1 HDMI inputs/outputs. The HDMI Audio Return Channel (ARC) feature supports both devices. HDMI eARC is available in each model. The Consumer Electronics Control (CEC) feature is present in most modern AV receivers and the models in our comparison are no exception. Both models support the standard HDCP 2.3. These compared receivers have a built-in phono stage for connecting a vinyl player. Supported voice control technologies are identical - Amazon Alexa, Google Assistant, Siri, Josh.AI. It is also worth noting that the ECO mode is presented in each of the receivers. Both AVR-S670H and AVR-X1800H can be configured using the Setup assistant.

Multichannel surround

Only the AVR-X1800H has a Dolby Atmos multichannel audio format support. A surround technology DTS:X is supported only by the AVR-X1800H.