17.13 in 6.34 in  | 17.13 in 8.88 in  | |
| Available colors | ||
| Editiorial reviews | ||
| User rating |
 Yamaha RX-A660 |  Yamaha RX-A670 | |
|---|---|---|
| Receiver type | Surround | Surround |
| Yamaha RX-A660 | Yamaha RX-A670 | |
|---|---|---|
| Audio (L/R) in | 4 | 4 |
| Composite video out | 1 | 1 |
| Composite video in | 4 | 3 |
| Digital audio optical in | 1 | 1 |
| Digital audio coaxial in | 2 | 2 |
| Pre-out connectivity | yes | yes |
| Headphone outputs | 1 | 1 |
| Number of HDMI inputs | 4 | 4 |
| Number of HDMI outputs | 1 | 1 |
| USB ports quantity | 1 | 1 |
| Bluetooth | yes | yes |
| Ethernet LAN | yes | yes |
| Wi-Fi | yes | yes |
| Yamaha RX-A660 | Yamaha RX-A670 | |
|---|---|---|
| Audio output channels | 7.2 | 7.2 |
| Audio Return Channel (ARC) | yes | yes |
| Digital Signal Processing (DSP) | yes | yes |
| Power output per channel (1KHz@6 Ohm) | 115.0 W | 145.0 W |
| Audio formats supported |
|
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| Audio decoders |
|
|
| Yamaha RX-A660 | Yamaha RX-A670 | |
|---|---|---|
| 3D | yes | yes |
| Deep colour support | yes | yes |
| x.v.Color support | yes | yes |
| Yamaha RX-A660 | Yamaha RX-A670 | |
|---|---|---|
| Colour of product |
|
|
| Yamaha RX-A660 | Yamaha RX-A670 | |
|---|---|---|
| Width | 17.13 in | 17.13 in |
| Depth | 12.87 in | 12.99 in |
| Height | 6.34 in | 8.88 in |
| Weight | 285.72 oz | 292.77 oz |
| Yamaha RX-A660 | Yamaha RX-A670 | |
|---|---|---|
| Supported radio bands |
|
|
| Internet radio services supported |
|
|
| Yamaha RX-A660 | Yamaha RX-A670 | |
|---|---|---|
| Handheld remote control | yes | no |
| On Screen Display (OSD) | yes | yes |
| AirPlay | yes | yes |
| Yamaha RX-A660 | Yamaha RX-A670 | |
|---|---|---|
| Power consumption (standby) | 0.1 W | 0.1 W |
| Pros | ||
|---|---|---|
| Cons |
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