Carl Martin DeLayla XLThe Carl Martin DeLayla XL is designed and developed with one goal in mind: To create a superior echo pedal, with the same sonic quality as the original DeLayla but with new extended features, yet incorporating some of the same features used in vintage tape delay units. To achieve this, we have incorporated a second delay head (slapback) (similar to using two heads simultaneously on a tape delay). Controls The SLAPBACK footswitch is used to turn the