Line6 DL4 Delay Modelling Pedal Details;

The DL-4 Delay Modeler offers you an incredible array of sounds, from a tube driven, tape loop echo (complete with adjustable wow and flutter), through 24-bit squeaky clean digital echo, to real-time reverse delay. Not only that, but you've got complete programmable control over all aspects of the sound in the studio and on the stage. Incredibly simple to use, it's an amazingly powerful tool offering you delay effects never before available in a single box.

The DL-4 offers: Digital modeling based on 15 of those vintage delay and echo effects you've always yearned for. Including: EP-1 Tube Echoplex, EP-3 solidstate Echoplex, Space Echo, Deluxe Memory Man, Reverse delay, Rhythmic delay, Dynamic delay, and many more!

The Loop Sampler includes 14 seconds of memory + 800ms of Pre-delay (sort of a delay within a delay), and features half speed and/or reverse overdubbing, and more

Features
3 programmable presets and onboard Tap Tempo.
True Bypass switching, so your direct tone is exactly that; direct from your guitar to your amp.
Expression Pedal Input — for real-time control of all effect settings.
DL4 runs in discrete stereo, both inputs and outputs, so Left stays left and Right stays right. (Loop Sampler sums signal to mono.)
Runs from batteries (a set is included) or optional power adapter.
Technical Description
Digital Effects: 16
Factory Presets: 18
User Programmable Channels: 3
Controls: Effect Selector, Delay Time, Repeats, Tweak, Tweez, Mix
Additional Controls: Tap Tempo (included), Expression Pedal (optional)
Mono/Stereo: Stereo in, Stereo out (Loop Sampler sums signal to mono) Chassis Color: Green