Pioneer SC-LX901 vs Denon AVR-S510BT comparison definitely makes sense.
A significant difference between the receivers in the number of channels, Pioneer SC-LX901 has 11.2 versus 5.2 for Denon AVR-S510BT. Regarding power, then SC-LX901 has such a W/Ohm ratio - 140/8 20Hz-20KHz, 200/6 1KHz when AVR-S510BT has a power of 75/8 20Hz-20KHz, 110/6 1KHz. The THD is the same and is 0.08%.
Characteristics of digital to analog converter (DAC) are different, ESS SABRE32 Ultra 192KHz/32-bit for SC-LX901 and 192 KHz/32-bit for the AVR-S510BT. Only the SC-LX901 supports Bi-amping feature. The Pioneer SC-LX901 can transmit an audio signal directly to the amplifier and bypasses any DSP processing. Rivals from our review have Bluetooth support. Only the SC-LX901 supports Spotify.
Only the Pioneer SC-LX901 has support for High dynamic range (HDR). Compared AV receivers retain the quality of 4K 60p 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 SC-LX901 can scale the input HDMI signal, unlike the AVR-S510BT. Dolby Vision technology found support only on the SC-LX901.
The Pioneer SC-LX901 has 8/2 HDMI inputs/outputs versus 5/1 HDMI connectors of the Denon AVR-S510BT. Only the SC-LX901 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 SC-LX901. Both models support the standard HDCP 2.2. The SC-LX901 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. Both SC-LX901 and AVR-S510BT can be configured using the Setup assistant.
Only the SC-LX901 has a Dolby Atmos multichannel audio format support. A surround technology DTS:X is supported only by the SC-LX901.
The Pioneer SC-LX901 is better receiver in this comparison. Check Pioneer SC-LX901 price