OSD Audio Rotary volume Control Heavy Duty 300 Watts peak Impedance， Outer Plate and Slider KIT-VMS300Blk<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Fits in a standard gang box; measures 4.125cm W x 6.35cm H x 6.35cm D</li><li>Impedance matching 1/2x， 4x， 8x or 16x positions， can use as non-impedance matching volume control if leaving jumper setting to default (1/2x)</li><li>Stereo non-impedance matching 1x position</li><li>Removable terminal blocks accept up to 14-gauge wire</li><li>Frequency response: 20hz-20khz.</li></ul></div><img src="http://ecx.images-amazon.com/images/I/31ujU27yEsL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41cfPcWoB3L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51-rgDPm1ZL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41Z52aCkmrL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51NGRSmJ1%2BL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51ox0hs%2BTGL.jpg" noproxy>