7‑Band Graphic EQ Car Audio Graphic Equalizer Universal High Level Input Front Rear Subwoofer Low Pass for Stereo System Car Audio Graphic Equalizer Universal Low Pass 7‑Band Variable Gain Adjustment High Level Input EQ for Stereo System Feature: 1. 7 Adjustable Bands: Chassis graphic equalizer with built in low pass filter, 7‑band graphic equalizer (50Hz, 125Hz, 315Hz, 750Hz, 2.2KHz, 6KHz, 12KHz). 2. Characteristic: 7‑band car audio graphic equalizer with variable gain adjustment and high level speaker input, very practical in use. 3. With Control Volume: Car audio graphic EQ includes light independent main volume and subwoofer control volume with volume controller. 4. EQ Parameter: Subwoofer frequency is 35‑250HZ, signal to noise ratio is 90dB, channel separation ratio is 70dB and frequency response is 15Hz‑30KHz (‑3dB). 5. Front Rear Sub Output: Car audio equalizer EQ, front, rear and subwoofer output, Includes mounting brackets and screws for easy installation. Specification: Item Type:CarAudioGraphic Equalizer Material: Metal Pre Image Frequency: 50Hz, 125Hz, 315Hz, 750Hz, 2.2KHz, 6KHz, 12KHz Equalization Range: ±18dB Subwoofer Frequency: 35-250HZ Input Impedance: 10K OHMS Signal To Noise Ratio: 90dB THD: 0.05% Channel Separation Ratio: 70dB Frequency Response: 15Hz-30KHz (-3dB) Application Range: Universal Package List: 1 x CarAudioGraphic Equalizer 1 x Manual 4 x Screw 2 xAccessories