Hello AI fans! I have the UpShot, DoubleShot and Clarus SL2 600-4Ohm head. From the beginning I have had problems with this gear. First, SL2 head does not work correctly with mic and phantom power. After service it is better but it is not that good as it should - sorry...I'm not use it with mic and I think it is not good head for a mic. Of course bigger head version with XLR yes but this small amp-no. The worst for me is the DoubleShot. Everything is almost fine, I like the weight, bottom end, midrange are fine, a little lack of hights, but the speaker buzzes a lot. Especially at the bass guitar and in the upper register. The sound is so bad that I thought the speakers are blowed but they are not. I opened the speaker enclosure, everything look ok, also I removed all glued commercials of AcousticImage from the grills. I change the head for another and the problem with buzz is the same, only speaker have better and nicer sound to my ears. When I hang the speaker in the air it is ok, but on the floor it is buzzing. Also when I put pressure at the enclosure it is ok, but in normal use the problem is present. The sound is something like distortion but only at higher notes. I've changed of course the placement of the speaker, the room but no effect. Maybe you could have any idea what's the problem? I've contacted with Rick and with service but the support is poor. I guess I would have to send back the speaker for a service.