Topp Pro Stereo 31 Band Equalizer With TEQ Feedback Detection System This dual 31 band EQ is ideal for small-large bands, DJ's, churches, recording studio's & school. The TEQ231MKII stereo 31 band EQ with a feedback suppressor built-in. This unique system was designed to be a professional high-precision equalization effects unit, modifying frequency contours, sound solutions and customization of sound has never been easier. The TEQ231MKII combines practicality with top design concepts achieved over many years of manufacturing quality products. Not only does this dual 31 band have a list of impressive features, it is compact, light weight, easy to operate, making for the ultimate effects processor for stage production, on the go bands and installation. For more information please visit the Topp Pro website: http://www.topppro.com/en/Processors/108_teq-231-mkii Features: • Designed in Miami Fl, USA • High-precision Stereo 31 band EQ with Feedback suppressor • Easy to operate front panel controls • Constant Q circuitry with a 3% centre frequency accuracy • Control range selectable: +/-6dB or +/-12dB • Active balanced and unbalanced input and output connectors • Variable input level control • Signal clip pilot LED • Built-in feedback suppressor • Ground "Lift" switch to disconnect signal ground from chassis ground • Input voltage selectable • Robust and compact design • 19" rack mountable