What is the opinion of the pre in the Voicemaster Pro? I know this is a channel strip w/ other processing, but I'm interested in pros and cons of the pre section. Does it even touch what the Great Rivers and Universal Audio pres can do? I don't mind spending $1K for a single channel of pre, but if I can get close to that quality for half of that (and get comp. and de-esser thrown in), I'd probably bite.