EFU-1 is more than another delay plugin. Besides all the basic functions (host sync or milliseconds, digital/tape/analog sound, modulation) it features a distinctive freeze function; like some famous hardware delay units, the delay buffer can act like a sampler. Up to 4/1 bars of input signal can be recorded (or lets better say: frozen) and continously played back at a selectable speed – even reverse. But EFU-1 is more flexible than hardware devices: while a frozen audio segment is played back, the delay unit remains useable – even at a different delay time / sync divider! Also to hold and freeze a signal it is possible to first choose “record” and then send audio to the plugin, or you continously play thru the delay and if the “last loop” was interesting, you hit “Record” to freeze it! And while the recorded phrase is played back – even reverse, you may continue to play along with it thru the delay at a different time setting.