great little amp,,great price,,brings my 6x9s to life in stereo,,even better was my first one seemed to not be working right,,probably was.. but i was using both grounds on a high output only,, old school receiver..upon the super fast arrival of the second one,,it did the same thing,,,so I tried removing one ground,,boom its working like a champ,,,I thank all at sound storm laboratories,,top notch pricing, value, along with great fast service.