This is an awesome Hartke HA3500 bass head paired with a Ampeg 1x15" cab.
Here's a link to some specs for the head:
http://www.musiciansfriend.com/amplifiers-effects/hartke-ha-series-ha3500c-350-watt-hybrid-bass-amp-head
This thing has some serious power and great tone!
The grill has been replaced on the Cab to look more like the vinatge Ampeg Cabs.
swing by and check it out