Russound ALT-70V-50 50-Watt In-Wall 70V/100V Volume Control in White Volume Controls and you probably won’t notice

and you probably won’t notice any loss of low bass unless you’re using very large speakers

90 watts x 2 into 8 Ω (all channels driven)150 watts x 2 into 4 Ω or 2 Ω (all channels driven)200 watts x 1 bridged into 8 Ω or 4 Ω20 amps peak current per channel2 Ohm stable operation with load selector switchTwo pairs of speaker outputs with front panel A/B buttonsRear-mounted lockout switch disables front A/B buttonsHigh pass filter

Overall height excluding floor spikes:-

ESA and Super Audio variants

Russound ALT-70V-50 50-Watt In-Wall 70V/100V Volume Control in White Volume Controls and you probably won’t noticeThe ALT 70V 50 volume control is designed to add local or zone volume control to any 70V audio system. The removable screw down speaker connector accepts up to 12ga wire and the 11 steps of attenuation with make before break connections means that youll always have smooth control over the system volume. It can be used with both 25V and 100V systems as long as the total power does not exceed 50 watts. Features Powerful 50 watt handling capability