Hi I am quite a n00b to the world of effects and will be very grateful for any help. Working with two bands, as a hobby, never had a chance to work with a rack full of effects and thus have no reference... I am looking for multieffect, that would ideally have a reverb going to aux return 1 a delay going to aux return 2, and stereo compression inserted into 2 channels or groups (2xmono) (Using Mackie 1640 mixer - should that matter. ) Looking at Lexicon MX400. It has 4 I/Os. Can I use reverb, delay and compressor at the same time? Is it altogether worth it? Any other recommendations welcome. If it is better to buy 2 boxes for 300 each instead of one for 500 I would go for it, too... What do you advise?