The Onkyo TX-SR383 vs Marantz SR5015 comparison will be extremely helpful for people who want to get a great, powerful receiver with many functions.
AV receivers under review have the same number of channels. In terms of power, there are differences, the TX-SR383 has such a ratio W/Ohm - 100/8, 135/6, while the SR5015 has a power of 100/8, 200/6. The value of total harmonic distortion is also different, and for the TX-SR383 it is 0.09%, but for the SR5015 it is 0.08%. The Bi-amping function is implemented only in the Marantz SR5015. The model SR5015 can transmit an audio signal directly to the amplifier and bypasses any DSP processing. Each of the receivers has a Bluetooth connector. The SR5015 has access to the Spotify service. Signaling over HDMI in standby mode can provide the TX-SR383 and the SR5015. Video scaling is only possible with the SR5015. Operation with the Dolby Vision is only possible with the SR5015.
The number of HDMI inputs/outputs varies depending on the receiver, the TX-SR383 has 4/1, and the SR5015 has 6/2. HDMI Audio Return Channel is implemented in both devices. HDMI eARC is only supported by the SR5015. When comparing receivers, it becomes clear that each of the rivals can work with HDMI CEC. The TX-SR383 has support for the standard HDCP 2.2, compared to the SR5015, which supports the standard HDCP 2.3. In the presence of a built-in phono stage for connecting a vinyl player only at Marantz SR5015.
Ability to create 2 Multi zones inherent in both AV receivers. There is an ECO mode in SR5015. The Marantz SR5015 can be properly configured using the setup assistant.
A Dolby Atmos multichannel audio format is available only in the SR5015. Only in the SR5015 realized a DTS:X surround technology.