I bought this unit with the matching speakers. This thing blew my mind a lot more that its little brother (AI-101DA) did. Lots more power and a 1/4in headphone adapter. It's really heavy for its size. Still no outputs on the back except for the sub out. But with this much power you don't really need much more than this unit. It's tiny size doesn't say that it will bother the neighbors but it definitely will.