Active 2-channel Bass Restoration Processor with Parametric Bass Controls Preamp and speaker-level inputs (Works with both Factory and Aftermarket Systems) Provides up to 9.5 Volts of output Auto turn-on via DC offset or Audio detection Load selection switch (20, 60, or 20K ohms) to prevent factory radio shut-down Wired remote bass level control included Experience enhanced bass in your vehicle with the NVX XBBR2 X-Series 2-Channel Bass Restoration Processor. This active processor works seamlessly with both factory and aftermarket audio systems, handling speaker-level inputs up to 30V (225 watts RMS) and low-level RCA inputs from 150 mV to 2 Volts. It outputs up to 9.5 Volts via RCA, delivering powerful, distortion-free bass. The adjustable parametric bass controls allow you to fine-tune your bass EQ, adding missing low frequencies and adjusting the center frequency and width of processing. The XBBR2 features auto turn-on via DC offset or audio detection, a load selection switch to prevent factory stereo shut-down, and a selectable ground isolation switch to eliminate ground and alternator noise. It includes a wired remote bass level control and an LED clip indicator, ensuring optimal performance. With a total harmonic distortion of 0.005% and a signal-to-noise ratio of over 105 dB, this processor delivers exceptional sound quality. The NVX XBBR2 is designed to enhance your driving experience with powerful, clear bass.