Check the listing for details. Keeley Hooke Spring Reverb Effects Pedal. Condition: New. Listed at 179.00 USD. The Hooke Spring Reverb from Keeley brings vintage tube-amp spring reverb and tremolo into one package. Bring your blackface reverb and tremolo on the road with you without lugging around your prized possession! Choose from Classic Spring, Black Face Trem-n-Verb, or an organ like Fugue-Verb.Classic Spring ReverbThe Hooke Spring Reverb has the Spring Reverb mode. The main features of this mode include the Tone and Spring controls. The Tone control allows you to set the pedal for a bright, spanky reverb tone or a dark, thick reverb. The Spring control is the amount “looseness” or “Spring!” in the reverb pan. Loose springs seem to give a lot of reflections and you can hear the reverb “bounce” a lot. You can simulate a specific reverb pan you had in a vintage amp.