Gogroove Phono Preamp Eq With 3 Band Equalizer - Preamplifier With, Turntables. 3 BAND EQUALIZER makes this a 2-in-1 product (preamplifier and equalizer) for your record player. A simple interface allows you to easily adjust sound levels with the treble, mid and bass controls TOP OF THE LINE CIRCUIT boost your turntable's phono audio level up to a more speaker/stereo line level, giving better volume and increased sound quality | DO NOT use RCA/DIN outputs at the same time RCA DIN CONNECTION hooks up to your record player , mixer or recording unit for smooth audio | PLUG YOUR HEADPHONES directly into the 1/4 headphone port and adjust sound with the monitor level knob INPUT GAIN allows you to control the level of the sound going into the preamp helping eliminate sound distortion | POWER INDICATOR LIGHT lets you know when the preamp is turned on/off CUSTOM SOUND LEVELS are great for all genres of music including rock , rap , jazz and more | FILTER BUTTON rolls off the low end and helps eliminates turntable rumble | 3 YEAR MANUFACTURER'S WARRANTY