Dual 21 band equalizer with individual LED indicatorsInputs: RCA (4 audio sources)- MP3 (1/8'')Outputs: RCA (record- main)Frequency response: 20Hz-20kHzEqualizations Points: 32Hz- 63Hz- 100Hz- 120Hz- 150Hz- 200Hz- 275Hz- 350Hz- 500Hz- 650Hz- 800Hz 1kHz- 2kHz- 4kHz- 6kHz- 8kHz- 10kHz- 12kHz- 14kHz- 16kHz- 18kHzAdjustment Range: +12dBFluorescent spectrum displayDirect / Equalizer function allows option of unfiltered pass-throughBass booster increases the low frequency levelsLoudness booster increases the low and high frequency levelsRemovable rack-mount bracketsColor: BLACKLength: 19''Height: 3.5''Depth: 5.25''