› delay-reverb-effects-pedalsDelay & Reverb Effects Pedals | Musician's Friend Rock guitarists on the other hand use a delay to provide a deeper tone and then add a mid or high-tone to produce a hearty feel. Reverb pedals on the other hand offer a unique sound all their own. The resounding ripple of noise you hear in most 60s surf rock is courtesy of a solid reverb pedal.