The Diaz Tremodillo is the closest thing you'll find to a classic Fender tremolo in a box. Rate and Dwell knobs take care of the traditional speed and depth functions while two stomp switches provide on/off and normal/half speed choices. The Diaz also includes a LED status that pulses in time with the tremolo's rate. It's a very cool addition that certainly helps in dialing up the perfect tempo. With most pedals you can expect to spend some twiddling to find that elusive sweet spot. That is not the case with the Tremodillo, as every conceivable setting sounded great to our ears. The Tremodillo is warm, expansive and oozing with that definable Blackface sound of the sixties. Despite the lack of true bypass, we never noticed any toneloss. In fact we noticed that this thing actually seemed to mysteriously enhance our tone just by being in the signal chain.