The Denon AVR-X2700H vs Denon AVR-X3700H comparison shows that these AV receivers have some important differences and common features. The AVR-X2700H has 7.2 channels amplifier and the AVR-X3700H 9.2 channels. Both receivers have support for Dolby Atmos multichannel audio format. The surround sound technology DTS:X is supported by devices. We have evaluated both AV receivers, AVR-X2700H has an overall score of 8.4 out of 10 vs 8.8 out of 10 for AVR-X3700H.