Got the SSL “100 watt” stereo amp which sounds good. It has a low pass, or hi pass filter, so you could use it for sub’s or – mid highs. I use it as full range for 2 boss chaos speakers in scoshe boxes. and it is pretty good. I wired it up to a cigarette lighter and I plug my phone into it. Its a portable system that I use in junkers. Way better than a FM transmitter through factory radios and blown speakers. Its loud enough For my taste

Update. I’ve been using this amp for over a month, and the speakers have worn in, and they bump a bit better. Its in a very noisy pos work van, so I run it loud all day, never overheats, though it got slightly distorted on a hot day