PreSonus Temblor T10 Powered Studio Subwoofer<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> 10-inch glass-composite low-frequency transducer </span></li><li><span class="a-list-item"> 250 watt， Class AB amplification </span></li><li><span class="a-list-item"> Input gain control (-30 dB to +6 dB， continuously variable) and continuously variable low pass filter (50 Hz to 140 Hz) </span></li><li><span class="a-list-item"> Switchable highpass filter removes frequency content below 80 Hz from the full-range signal sent to the main monitors </span></li><li><span class="a-list-item"> Momentary footswitch (included) bypasses the subwoofer， highpass filter， and Sub Out </span></li><li><span class="a-list-item"> Left and right， balanced XLR and ¼” TRS and unbalanced RCA main inputs </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/51NEAAKopRL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51tlKjtvukL.jpg" noproxy>