Carl Martin Red Repeat Pedal Based on the Carl Martin Delayla, the 'Red Repeat' provides an affordable 600 milliseconds of delay as well as a simply controlled echo. Add just a touch of delay to thicken your sound, or push the echo circuit past 12o'clock where the unit begins to self-oscillate, just like an old analog delay. Great vintage style and color in a heavy diecast, 9 volt pedal with heavy duty bypass switching.