The present review is aimed to compare two AV receivers - Denon AVR-S640H vs Pioneer VSX-LX102 that are meant to satisfy the needs of cinema and music lovers.
A significant difference between the receivers in the number of channels, Denon AVR-S640H has 5.2 versus 7.2 for Pioneer VSX-LX102. Regarding power, then AVR-S640H has such a W/Ohm ratio - 75/8, 100/6 when VSX-LX102 has a power of 80/8, 170/6. The THD is the same and is 0.08%.
Characteristics of digital to analog converter (DAC) are different, 192 KHz/32-bit for AVR-S640H and AK4438 384 KHz/32-bit for the VSX-LX102. Only the VSX-LX102 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. The Denon AVR-S640H has support for AirPlay, AirPlay 2, and its competitor in our comparison - AirPlay. Spotify can be used on each receiver. The AVR-S640H can work with the audio stream from Deezer, TIDAL, Pandora, Napster, SiriusXM, TuneIn Radio, iHeart Radio, Sound Cloud, and the VSX-LX102 can receive a content from Deezer, TIDAL, Pandora, TuneIn Radio. Compared AV receivers retain the quality of 4K/60Hz signal when transmitting from a source to a TV or projector. HDMI signal transmission in standby mode is implemented in each of the devices. The VSX-LX102 can scale the input HDMI signal, unlike the AVR-S640H. The HDR standard - Dolby Vision is supported by these receivers.
The Denon AVR-S640H has 5/1 HDMI inputs/outputs versus 4/1 HDMI connectors of the Pioneer VSX-LX102. The HDMI Audio Return Channel (ARC) feature supports both devices. Unfortunately, HDMI eARC is not available on monitored devices. 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 2.2. These compared receivers have a built-in phono stage for connecting a vinyl player. It is also worth noting that the ECO mode is presented in each of the receivers. Both AVR-S640H and VSX-LX102 can be configured using the Setup assistant.
Only the VSX-LX102 has a Dolby Atmos multichannel audio format support. A surround technology DTS:X is supported only by the VSX-LX102.
The Pioneer VSX-LX102 is better receiver in this comparison. Check Pioneer VSX-LX102 price