Yamaha RX-V665BL photos

The four buttons across the front of the receiver control Yamaha's "Scene" functions, which allow you to pick a preferred DSP (digital-sound processing) mode for specific listening scenarios--like always using the "Hall" effect when watching DVDs. Since we generally prefer to leave the DSP modes off, we didn't find this helpful, but those who like the different sound modes may like it. We'd prefer if the Scene functions also let us set a default volume level for each scenario; we did appreciate that Yamaha lets you set a specific volume for each time the receiver turns on in the setup menu.