and high quality This power amplifier is made of high-quality material which is wear , and not easy to break. Adjustable: This power amplifier is designed to adjust the bass volume according to needs. Replacement: The bass board can be used as a spare part to replace the old or broken accessory. Application: By using the music board can control the volume and tone easily when playing the music. Fit occasions: This amplifier board can be used in many occasions including most kinds of car interior, truck. 600W high-power amplifier board Can drive 8-12 inch subwoofers Voltage: 12V Maximum power: 600W power: 1 x 600W Rated power: 1 x 200W Output impedance: 4-8 ohms Frequency response: 28-160KHz Distortion: less than 0.5% (The color of the circuit board on the back of the amplifier board is random, and specified colors are not accepted) Color: Black Material: Aluminum Alloy Package Contents: 1x Power Amplifier Board Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.