It’s strongly recommended to compare different receivers if you want to choose the best one: Onkyo TX-SR383 vs Onkyo TX-NR6100.
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 TX-NR6100 has a power of 100/8, 210/6. The value of total harmonic distortion is also different, and for the TX-SR383 it is 0.09%, but for the TX-NR6100 it is 0.08%.
The manufacturer installed different DACs, the TX-SR383 received the model 192 KHz/24-bit, but the TX-NR6100 is equipped with 384 KHz/32-bit. The Bi-amping function is implemented only in the Onkyo TX-NR6100. The model TX-NR6100 can transmit an audio signal directly to the amplifier and bypasses any DSP processing. Each of the receivers has a Bluetooth connector. The TX-NR6100 has access to the Spotify service. Signaling over HDMI in standby mode can provide the TX-SR383 and the TX-NR6100. Video scaling is only possible with the TX-NR6100. Operation with the Dolby Vision is only possible with the TX-NR6100.
The number of HDMI inputs/outputs varies depending on the receiver, the TX-SR383 has 4/1, and the TX-NR6100 has 6/2. HDMI Audio Return Channel is implemented in both devices. HDMI eARC is only supported by the TX-NR6100. 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 TX-NR6100, which supports the standard HDCP 2.3. In the presence of a built-in phono stage for connecting a vinyl player only at Onkyo TX-NR6100.
Ability to create 2 Multi zones inherent in both AV receivers. There is an ECO mode in TX-NR6100. The Onkyo TX-NR6100 can be properly configured using the setup assistant.
A Dolby Atmos multichannel audio format is available only in the TX-NR6100. Only in the TX-NR6100 realized a DTS:X surround technology.