Yamaha RX-A1080 vs RX-A880 vs RX-A780 vs RX-A680 (RX-A880 vs RX-A870; RX-A780 vs RX-A770; RX-A680 vs RX-A670)

The Yamaha RX-A1080, RX-A880, RX-A780, RX-A680 all have 7-channel amplification. The same applies to the RX-A870, RX-A770 and RX-A670 which are the RX-A880, RX-A780, and RX-A680 predecessors.

Yamaha RX-A1080 vs RX-A2080 vs RX-A2070 vs RX-A1070

The RX-A2080 and RX-A2070 have a power output of 140 Watts per channel whereas the RX-A1080 and RX-A1070: 110 Watts per channel (2-channel driven into 8-ohm loads, 20Hz-20kHz, 0.06% THD in both instances).

Yamaha RX-A2080 vs RX-A3080 vs RX-A3070 Review

The Yamaha RX-A3080, RX-A3070, and RX-A2080 all have 9 channels of amplification but the RX-A2080 has slightly lower power output of 140 Watts per channel (2-channel driven into 8 ohms, 20Hz-20kHz, 0.06% THD) whereas the RX-A3080 and RX-A3070 deliver 150 Watts per channel (2-channel driven into 8 ohms, 20Hz-20kHz, 0.06% THD).

Marantz NR1710 vs SR5014 vs SR5013 vs SR6013 Review

While the Marantz SR5014, SR5013, and SR6013 are full-profile receivers (with circular display), the Marantz NR1710 and its predecessor: NR1609 have slim profile (and rectangular display), meaning their height is approximately two-thirds of the SR5014, SR5013, and SR6013.

Marantz SR7013 vs SR6014 vs SR6013 Review

The Marantz SR7013, SR6014, and SR6013 all have 9 poweramps. There is no difference between the Marantz SR7013 vs SR6014 vs SR6013 in terms of the pre-amp section either since they all have 11.2 channel processing capability and 11.2 channel pre-outs (for the main room).