Channeling the golden age of amplifier reverb into a stompbox, the FDR-1 Reverb is a joint venture of Boss and Fender to capture the lush tone of a 1965 Deluxe Reverb blackface amp. Featuring gain, treble, bass, reverb and vibrato knobs, the FDR-1 also functions as a pre-gain when playing through an overdriven tube amp.