A parametric EQ with 3 bands,tuned to the frequencies that aremost effective for guitar and bass. Low Band: 33Hz - 330Hz frequency rangeMid Band: 250Hz - 2.5kHzfrequency rangeHi Band: 1.1kHz - 11kHzfrequency rangeEach band has +/-12dB ofboostEach band has Q control toadjust the width of thefrequencies affectedLevel knob controls overalloutput with more than 30dBof boost on tapTrue bypassOperates on a single 9vbattery or standard 9VDCnegative tip power supplyThis is the assembled version hand built and tested in our shop.International Buyers – Please Note:•Import duties, taxes and charges are not included in the item price or shipping charges. These charges are the buyer’s responsibility.•Please check with your country’s customs office to determine what these additional costs will be prior to looking/buying.•These charges are normally collected by the delivering freight (shipping) company or when you pick the item up – do not confuse them for additional shipping charges.•We do not mark merchandise values below value or mark items as ‘gifts’ - US and International government regulations prohibit such behavior. _gsrx_vers_420 (GS 6.0.8 (420))