This is a really, really, nice sounding small profile power amplifier. A real 50w x 2 @8ohms with gain control for both sides, and very low distortion ratings. Really great reviews for an inexpensive amplifier! Bridgeable for an efficient subwoofer if you wanted. https://www.crutchfield.com/S-Mh7DCjltII6/p_190SI250/Niles-SI-250.html