The Rockford Fosgate PBR300X4 is an ultra-compact 4-channel power amplifier. It is about the size of the palm, but it is an excellent way to clear sound quality issues. This is a new generation of ultra-small amplifier that is convenient for sports cars, light cars, and compact cars where equipment is limited to places. It is equipped with a new BRT (Boosted Rail Technology) technology developed by Rockford. This is a new technology that has an extra capacitor inside the power amplifier, which compensates for power according to the dynamic energy of the music. It achieves ultra-high efficiency and low distortion, and is ultra-compact yet has a high sound quality that does not change as an AB amplifier. High level inputs are supported, so you can connect the original system to decks that do not have preouts. Built-in high-pass/low pass filter for easy adjustment when subwoofer is added It is also equipped with unique technologies such as DTM that distributes heat evenly and ensures stable operation, FET mounting technology = MEHSA3 and PEQ2 the advanced PEQ.
We do not offer a product guarantee due to parallel import goods, but in case of initial defects within 30 days of purchase, we will refund you from Amazon. Also, please understand that the outer and inner boxes may have slight damage from the time of shipping. We strive to make our customers satisfied. Thank you for your understanding