Check this thread about the Blackstar Fly 3 bass kit for about $100-$110, which is two small boxes, a combo box and and extension box. Katysax had a lot to say, and since I know her, I took her recommendation and decided to buy it, I'm quite impressed, it has really good bass tone and volume for such a small item. I used it Wednesday for a hospital gig where we had to roam around so I attached them together with Velcro and added a shoulder strap so i could wear it.