Built-in Digital Delay produces choice of 4 great overall sound-enhancing delays ranging from small room to spacious hall. Includes CD/tape level, master level, and digital delay level/ delay time select controls, digital delay selects switch and L/R tape in and tape record out RCA jacks. Rear panel Main Out/Amp In 1/4" TRS jack unbalanced insert point provides a break between the Main Out and the built-in amplifier, allowing the output to be sent to an external signal processor or additional power amplifier.