[Mark Staples]

Ditto the procedure that Ben suggested. Using Digirack short or slap delay with just a little delay does an excellent job of widening the stereo field. I use it especially on acoustic guitars and piano.

If you use it as an insert, be careful of phase cancellation. One technique is to listen to it in mono while you are finding the right combination of delays (e.g. 10ms left/20ms right).

If the combination sounds funny in mono, it keep adjusting until you can find the same kind of sound in mono as you would without the delay, little to no loss in overall volume and it sounds "normal." Otherwise, you'll have a phasing problem that will sound funky (unless you are looking for that kind of sound).

I've run it as an insert and an aux with similar results. Running as an aux opens up the possibility for other tracks to use the delay with varying degrees of input.