GL Auto Subwoofer-Box

home subwoofersubwoofers del audio del jlpowered subwoofer speakersDetailed Product Descriptioncar subwoofer box1.Built-in sound correction circuits; 2.Temperature protection; 3.Low frequency adjustment function.car subwoofer with temperature protection function model:GL car subwoofer box 1.Itisequippedwithahighpitchoutputport; 2.Low-frequency,fullfrequencyconversionfunction; 3.Lowfrequencyadjustmentfunction; 4.Withbuilt-inacoustic compensation circuits,itisfairly perfectin degreeofbalanceofhigh,medium,andlowpitch;