hi thinking of buying a compressor for my set up.i had in mind either the fmr rnc or the dbx 160a.would you reccomend any of these as they seem to have good reviews or is there any others you might reccomend instead on a small buget.i will be using it mainly on vocals and acoustic guitar.also would either of these be compatible and hook up to a m audio profire 610 audio interface.....cheers