Onkyo TX-SR393 vs Onkyo TX-8140 review

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An affordable AV receiver is always a good option to consider, so Onkyo TX-SR393 vs Onkyo TX-8140 comparison definitely makes sense.

Amplifier

A significant difference between the receivers in the number of channels, Onkyo TX-SR393 has 5.2 versus 2.0 for Onkyo TX-8140. Regarding power, then TX-SR393 has such a W/Ohm ratio - 80/8, 155/6 when TX-8140 has a power of 80/8, 110/6. The THD is the same and is 0.08%.

Audio features

Characteristics of digital to analog converter (DAC) are different, AKM 384 KHz/32-bit for TX-SR393 and AK4458 384 KHz/32-bit for the TX-8140. None of the models support Bi-amping. The Onkyo TX-8140 can transmit an audio signal directly to the amplifier and bypasses any DSP processing.

Connectivity

Only the Onkyo TX-8140 can connect to the Internet via WI-FI. Rivals from our review have Bluetooth support. Each of these units does not support Apple Music. Only the TX-8140 supports Spotify. Only the TX-SR393 provides HDMI signal transmission in standby mode. The TX-SR393 can scale the input HDMI signal, unlike the TX-8140. Dolby Vision technology found support only on the TX-SR393. Only the TX-SR393 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 TX-SR393. The TX-8140 has a built-in phono stage for connecting a vinyl player. A voice control is not available. An ECO mode is not present in each of the AV receivers. The setup assistant will help you configure Onkyo TX-8140.

Multichannel surround

Only the TX-SR393 has a Dolby Atmos multichannel audio format support. A surround technology DTS:X is supported only by the TX-SR393.