Features: No power supply design, can be directly inserted and used, no input and output signal loss, transmission. Two adjustment methods: 1. by gains adjustment, 2. by frequency adjustment. Usage: mainly used to select common output devices and various stereo signal inputs. If there are two stereo signal sources (such as TV stereo, MP3 player, video game, mobile phone, tablet, computer, recorder), the device needs to output to the power amplifier or active speakers. Two sets of stereo source switchers solve the complicated line blocking operating. As long as the required input device signal source is uniformly connected to the , it can be easily selected. The input and output standard adopts interface design, and the adopts accurate 2-position manual button . Specifications: Material:ABS Voltages: 12V Frequency: 150Hz-40Hz. Gains: 0db to -12db Note: Please allow 1mm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color of the item. Package includes: 1Piece Bass Control Knob Car Amplifier Stereo Subwoofer Bass Control Knob Sub Gains Equalizer Regulator Frequency Controller Line Levels AdjustUniversally Bass Knob Control Car Bass Controller Volumes Regulator Knob Amplifier Stereo Controllerbass control knob\nbass control knob for amplifier\nbass control knob for subwoofercar bass controller\nbass controller for car amplifier\nuniversally car remote amplifier Levels controller bass knob
