First up we tried the Surf Trem and with excellent results, it proved to have a lush 50s Fenderish style tremolo effect with an un-choppy deep swish and smooth wave form that sounded great. Switching the pedal in and out several times revealed that it did not color the tone at all and did not add any noise, clean and transparent, just adding the an outstanding tremolo effect. We compared the Surf Trem to the tremolo circuit in the Fender Bandmaster, and could get them to sound nearly exactly the same, in fact we almost preferred the Surf Trem because of its ability to produce a deeper effect and its wider range of speed settings.