Marantz AV7703 vs Onkyo TX-8140 review

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An affordable AV receiver is always a good option to consider, so Marantz AV7703 vs Onkyo TX-8140 comparison definitely makes sense.

Amplifier

A significant difference between the receivers in the number of channels, Marantz AV7703 has 11.2 versus 2.0 for Onkyo TX-8140. The THD is the same and is 0.08%.

Audio features

Characteristics of digital to analog converter (DAC) are different, 192 KHz/32-bit for AV7703 and AK4458 384 KHz/32-bit for the TX-8140. Only the AV7703 supports Bi-amping feature. Each of the AV receivers can transmit an audio signal directly to the amplifier and bypasses any DSP processing. Rivals from our review have Bluetooth support. Spotify can be used on each receiver. The AV7703 can work with the audio stream from Deezer, TIDAL, Pandora, Napster, iHeart Radio, SiriusXM, Sound Cloud, and the TX-8140 can receive a content from SiriusXM.

Video features

Only the Marantz AV7703 has support for High dynamic range (HDR). Only the AV7703 provides HDMI signal transmission in standby mode. The AV7703 can scale the input HDMI signal, unlike the TX-8140. Dolby Vision technology found support only on the AV7703. Only the AV7703 supports HDMI Audio Return Channel (ARC). Unfortunately, HDMI eARC is not available on monitored devices. Of the two receivers in our comparison, HDMI CEC is present in only the AV7703. These compared receivers have a built-in phono stage for connecting a vinyl player. An ECO mode is only available for the AV7703. Both AV7703 and TX-8140 can be configured using the Setup assistant.

Multichannel surround

Only the AV7703 has a Dolby Atmos multichannel audio format support. A surround technology DTS:X is supported only by the AV7703.