Here's a quickie: I have a Seb vmp 4000e and a Focusrite ISA 238. I'm using those for drums and guitars. Will those pres work well on vocals, or do I need another unit, say a Grace or a Great River, for vocal duties? At that rate, will those two pres do the job for fat bass? If not, what do you recommend for good vocals and bass? I know this topic has already been covered in one form, but I just need to know whether to break down and buy new equipment...or whether what I already have will do a great job. Thanks, guys.