The AT10A attenuatorallows the output level of a network of 25V or 70V speakers to be controlled from a wall-mounted volume control, without affecting overall amplifier volume settings.Volume reduction takes place in 3 dB increments except for the two lowest settings, which provide 6 dB reduction increments.The attenuator provides a choice of 10 stops and an “off” position, and iscapable of controlling up to 10-watt speaker systems. The attenuatormeasures 2-3/4" W x 4-1/2" H x 2-3/4" D and weighs 13 oz.