An affordable AV receiver is always a good option to consider, so Onkyo TX-SR383 vs Denon AVR-X3800H comparison definitely makes sense.
A significant difference between the receivers in the number of channels, Onkyo TX-SR383 has 7.2 versus 9.4 for Denon AVR-X3800H. Regarding power, then TX-SR383 has such a W/Ohm ratio - 100/8, 135/6 when AVR-X3800H has a power of 105/8, 135/6. The THD is 0.09% for the TX-SR383 but 0.08% for the AVR-X3800H.
Characteristics of digital to analog converter (DAC) are different, 192 KHz/24-bit for TX-SR383 and 192 KHz/32-bit for the AVR-X3800H. Only the AVR-X3800H supports Bi-amping feature. The Denon AVR-X3800H can transmit an audio signal directly to the amplifier and bypasses any DSP processing. Rivals from our review have Bluetooth support. Only the AVR-X3800H supports Spotify. HDMI signal transmission in standby mode is implemented in each of the devices. The AVR-X3800H can scale the input HDMI signal, unlike the TX-SR383. Dolby Vision technology found support only on the AVR-X3800H.
The Onkyo TX-SR383 has 4/1 HDMI inputs/outputs versus 6/3 HDMI connectors of the Denon AVR-X3800H. The HDMI Audio Return Channel (ARC) feature supports both devices. The HDMI eARC is available only on the AVR-X3800H. The Consumer Electronics Control (CEC) feature is present in most modern AV receivers and the models in our comparison are no exception. The TX-SR383 supports the protection of digital content of the standard HDCP 2.2, versus HDCP 2.3 in the AVR-X3800H. The AVR-X3800H has a built-in phono stage for connecting a vinyl player.
Each of the AV receivers from our review supports 2 Multi-room zones. An ECO mode is only available for the AVR-X3800H. The setup assistant will help you configure Denon AVR-X3800H.
Only the AVR-X3800H has a Dolby Atmos multichannel audio format support. A surround technology DTS:X is supported only by the AVR-X3800H.