http://www.harmony-central.com/Bass/Data/Genz_Benz/Intro_50-01.html http://www.genzbenz.com/img/manuals/gb/intro-50manual.pdf 50 watt amp, 12" speaker + bullet tweeter, kickback design, very powerful 4-band EQ, XLR out, headphone out, preamp out/aux in, 40 lbs. 22x16x15. I use it for upright, and it has a very clean, natural sound. Genz-Benz makes outstanding equipment. The EQ is really great, and the amp has more power than I have ever needed. It would also be good for electric, as a practice/recording amp, or for jams/small gigs. $220 shipped.