Our PA amp developed a fault at the weekend and is not going to be repaired in time for this weekends gigs. So my question, I have a Seck 6 channel mixer and a spare Hartke 3500. Is there any reason why I cant use this set up to get us out of trouble? (Vocals only) Straight out of the Seck in mono, and into the instrument input on the Hartke. (Active input) Will need the send/return inputs for the Alesis midiverb. .....Is this ok? There wont be any time to test it properly before the 1st gig as our main gear is in kept in a lock up miles away, although I tried a mic at lowish volume through a bass cab last night and it seems to sound ok. Thanks in advance. Spike.