What are the main differences between the Onkyo TX-NR646 vs Onkyo TX-SR444 and which AV receivers is better? The TX-NR646 has 7.2 channels amplifier and the TX-SR444 7.1 channels. Both receivers have support for Dolby Atmos multichannel audio format. DTS:X is supported only by the TX-NR646. We have evaluated both AV receivers, TX-NR646 has an overall score of 7.4 out of 10 vs 4.8 out of 10 for TX-SR444.
The Onkyo TX-NR646 is better receiver in this comparison - check Onkyo TX-NR646 price.