SIMPLE INSTALLATION - Mount the EQX7PRO next to your source unit or underneath your dash using the included mounting brackets for easy access to your front panels controls directly from your drivers seat!. PRECISION ADJUSTMENT - EQX7PRO to fine-adjust your amplifier's DB ranges with precision, bringing out the exact loudness level exactly where you want it!. INDEPENDENT CONTROLS - The EQX7PRO has 3 stereo RCA outputs to drive front, rear, and subwoofer audio amplifiers with separate controls for master volume, subwoofer volume (sub level), front/rear fade, and selection of main or auxiliary inputs!. FREQUENCIES ADJUSTABLE - All 7 Bands (50Hz, 125Hz, 320Hz, 750Hz, 2.2KHz, 6KHz, and 16KHz) are designed to deliver the most precise audio with frequencies adjustable between -12 to +12dB (-15 to +15dB for subwoofer frequencies) and 7v output LED indicators on each Band and Output!. STEREO EQUALIZER / CROSSOVER - Take complete control of your audio with the best high-strength 7-band stereo equalizer / crossover available in aftermarket audio: DS18’s EQX7PRO! The EQX7PRO pushes your system past its limits by strengthening its signal and clearing distortion!.