I recently purchased a Carvin MB12 - the one with 1X12 + 1X6.5 + tweeter. I'll post a longer review later, but it is clear, has relatively flat response, everything does what you expect, is intuitive in its setup, and the first day I had it, it was delivered at my day job with a rehearsal/recording session with my dance/jazz band that evening so I didn't even get to do a shakedown. Just went in, plugged in, and got on with it. The band loved it. I loved it. The keyboard player, who is an IT teacher and the recording engineer. He worked his way through college with an Eberle and a Fishman 100. Getting to be out front, he was most impressed with both its tone and its features making it both operationally and recording friendly. Another friend who has run sound for many bands in the last 20 years came by the week after I got it home and was also impressed with it.
Later I tried it with EB as well, and putting it on top of a ported 1X15 cab which gave the lowest 1/2 octave for those gigs that need that, and maintained the character of each of my EB's with similar eq settings. I even ran both my acoustic-electric guitars through it, a cheap Japanese from way back and a newer Gibson J-45 with the factory piezo with built-in preamp and the saddle changed out to bone, and they bothsounded great through it as well. And it only weighs about 30 pounds. So I don't need a separate acoustic guitar amp, either.
It is a real contender with versatility, good tone and ease of use that will beat all the above, including all the boutique amps costing way, way more for price/performance.
