Seymour Duncan’s Twin Tube series are tube powered preamp/overdrive pedals.  They come in three flavors: “Blues”, “Classic”, and “Mayhem”!  Each of the two-channel pedals are powered by a pair of mil-spec (Military Spec), subminiature (very small), USA-made Phillips-Sylvania® dual triode tubes. According to Duncan, “Too often, inexpensive tube gear runs in “starved plate mode,” where the tubes are not actually helping to create the distortion. The high-plate voltage and 100% vacuum tube signal path allows the tubes to operate at their fullest potential and provide maximum dynamic range. The means you get the most gain and all the smooth tone you expect from a high-quality tube preamp.” I will second that.  These pedals have a warmth and clarity I’ve not heard from any other overdrive pedals.  I A/B’d the Twin Tube Classic and Twin Tube Blues against several of my favorite overdrive pedals (one was green, one was blue) on several different amps, and the difference was stunning.  Both Twin Tubes offer a massive amount of gain, even on the rhythm channel.  With a gain and a volume for each channel, you can get anything from a nice clean boost to a super-saturated overdrive.  You could even use them as […]... Click on the title for more