Can't say enough positive about Mr Music in Havrard Av Allston. I shop there 1st for DR Strings, effects (bass effects case: Source Audio, Xotic, ZVex, TCElect., Moog, Sansamps, Voodo, DunlopMXR, others...and used effects) and interesting basses, they have a bunch of oddities now. A couple old Guilds, an Ovation (the Jah Wobble bass), a killer American Fender P/J, a couple Lakelands, DanElectos, Yamahas, a couple that look like Italian furniture. Things move fast there so it's a great place to visit every couple months. I got my fav bass there last year, a Schecter Studio Custom in excellent condition, taken care of, for $300 and a trade of a p.o.s. Chinese thing that was pretty but junk. (My last Chinese bass until they get the Taoist masters making basses.) They also usually have a top line amp or two, but it's chancy. I've seen many SVT's there and right now a new 600w Ampeg combo with a tube pre is the demo amp to try basses with. It's super.