Ultimate digital reverb/delay effects pedal comparable to state-of-the-art studio processors Real Sound Modeling (RSM) combines state-of-the-art DSP technology with sophisticated algorithms to emulate real acoustic environments 24-bit high-resolution stereo effects including reverb, delay and combinations Dedicated Mode, Reverb/Delay time, Tone/Feedback and Balance controls for awesome sound shaping Blue status LED for effect on/off and battery check Runs on 9 V battery or the BEHRINGER PSU-SB DC power supply (not included) First-class electronic On/Off switch for highest signal integrity in bypass mode High-quality components and exceptionally rugged construction ensure long life Conceived and designed by BEHRINGER Germany Not all reverb/delay effects are created equal. Looking for lush, detailed reverb and looong delays that actually sound real? Powered by our RSM processor, the DR400 pedal gives you complete control over a rich palette of effects—big halls to tape delays.This stomp box’s Mode Switch selects between 11 distinctively different delay/delay-reverb/and straight reverb styles. Dual knobs adjust Tone, Reverb Time, Feedback and Delay Time. Dial in the amount of direct versus effect you want in your output via a separate Balance control—that’s an awesome amount of creative control! The sophisticated algorithms of our Real Sound Modeling (RSM) processor accurately emulate the fine details of real acoustic reverb and delay environments in ways you’d only hear with expensive rack mount reverbs. Other features include a really blue LED to indicate the power status and battery condition plus a robust bypass footswitch, which preserves signal integrity. Run the DR400 effects pedal on our BEHRINGER PSU-SB DC power supply or use a 9 V battery to take it anywhere.