5 Band Graphic Equalizer with 9 Volt RCA Output Time to geek out with this EQ-515DXP 5 Band EQ with built in LCD volt meter and voltage display. This EQ is equipped with a Bass EXP feature which analyzes the upper harmonics and uses them to digitally recreate and boost low frequencies creating a full and balanced sound in music missing lows.  5 Band Stereo Equalizer Nickel Plated Locking Adjustable Knob Adjustable Active Gain Preamp 30V Bi-Polar Switching Power Supply Adjust Subwoofer Frequency Subwoofer Output and Level Control 20 dB Headroom 9 Volt Line Output Driver Input Sensitivity: 50mV ~ 3V Operating Voltage: 10~15V Negative Ground Dimension: 7.1” x 4.6” 1.0” (180 117 x 26 MM)