Darkglass Microtubes Head in Amps and Cabs Posted January 20, 2017 Picked mine up from Bass Direct (Mark was excellent ... again) and gigged last week. This is by far the best amp I have ever played by a mile. I like a bit of growl and had the vintage Chanel about 1/2 way up and about a third way up for the blend. The power and presence of this amp is superb and my '73 P sounded incredible. Will put my Jazz through for tomorrow's gig. The only thing I had to watch is when I sat the head on top of my speakers the vibrations was causing the head to move so I had to insert a bit of foam between speaker and cab. I was loud but the amp and the context for the band I'm in was superb.