Now you can have the warmth, the depth, the richness of a 50's era spring reverb-and use it with any amp, anywhere, any time. The SPRING KINGTM sounds like a real spring reverb from the 50's...because, well, it is! Danelectro started with an authentic spring reverb tank and they fussed and fiddled and tweaked until the sound was ''just so.'' The result is a rich, thick spring reverb delivering ''just the right tone and warmth.'' If that isn't enough they added a ''kick pad.'' One foot tap sends the reverb into a thunderous explosion. Why the kick pad? Believe it or not, bands in the 50's and 60's used to kick the side of their amp to get this effect! Anyway, it sounds cool. Specs Effect Type: Reverb Technology: Analog Special Features: real Spring reverb Mono / Stereo: Mono In, Mono Out Controls: Volume, Tone, Reverb Bypass Mode: Buffered Bypass Power supply: 9VDC, Center negative Power Consumption: n. a. Battery powered: Battery Powered Battery Type: 9V Block Housing size: Big Size Dimensions WxHxD (cm): 25,4 x 5,1 x 15,25