![Notice: this is mono amplifier, if you want stereo output please buy 2PCS or 3PCS. Features G4 can be used as full frequency amp or subwoofer amp with Notice: this is mono amplifier, if you want stereo output please buy 2PCS or 3PCS. Features G4 can be used as full frequency amp or subwoofer amp with](https://ueeshop.ly200-cdn.com/u_file/UPAH/UPAH311/1912/products/24/ec6df66eb6.jpg.500x500.jpg)
Notice: this is mono amplifier, if you want stereo output please buy 2PCS or 3PCS. Features G4 can be used as full frequency amp or subwoofer amp with
![BOSS Audio Systems R2504 Riot Series Car Audio Stereo Subwoofer Amplifier - 1000 High Output, 4 Channel, Class A/B, 2/4 Ohm, High/Low Level Inputs, High/Low Pass Crossover, Bridgeable, Full Range - Walmart.com BOSS Audio Systems R2504 Riot Series Car Audio Stereo Subwoofer Amplifier - 1000 High Output, 4 Channel, Class A/B, 2/4 Ohm, High/Low Level Inputs, High/Low Pass Crossover, Bridgeable, Full Range - Walmart.com](https://i5.walmartimages.com/asr/e5245c40-fb14-4768-895b-154eafc03ea0.c7521dada88818d3af32c2557ad00ab1.jpeg)
BOSS Audio Systems R2504 Riot Series Car Audio Stereo Subwoofer Amplifier - 1000 High Output, 4 Channel, Class A/B, 2/4 Ohm, High/Low Level Inputs, High/Low Pass Crossover, Bridgeable, Full Range - Walmart.com
![1.0 subwoofer board ,500W amplifier for subwoofer,12 inches subwoofer amplifier board subwoofer amplifier module|amplifier for subwoofer|low passlow pass filter - AliExpress 1.0 subwoofer board ,500W amplifier for subwoofer,12 inches subwoofer amplifier board subwoofer amplifier module|amplifier for subwoofer|low passlow pass filter - AliExpress](https://ae01.alicdn.com/kf/H152d2a3b018249c192f8e5997cdd23161.jpg)