Need a new powered mixer. In a nutshell, here's what I'm looking for. 8 channels. Moderate power needs. Basic functions (can get by w/o multiple effects). Lightweight (< 30 lbs.). Prefer < $300, absolute max $500. Suggestions? Okay, now for background info. The applications for this mixer won't be terribly taxing. One band (5 piece) has a fiddle (not mic'ed), 2 acoustic guitars running straight into the mixer, and 3 (or up to 4) mics. No drummer. In another band (duo) it's just my guitar and 2 vocals. Again, no drums. A separate mic for those who might sit in (happens regularly). In most cases, we'll be playing to an audience 25-50, and in relatively quiet settings. We do retirement centers, coffee shops, business openings, private parties, etc. No bars. Our duo has a system, but the powered mixer (Yamaha EMX 860 ST) has been acting up for a while. Had it serviced in March, and it's still not right. For some of our duo gigs, we can get by with a smaller rig: guitar into a Pathfinder 15R, mics into a Crate TX50 "Limo" used as a mini PA. I want a system of my own that will serve as our 5-pc. band's PA, and can serve as backup for our duo. The current issues with our Yamaha mixer makes me leery of that brand, but I'm not absolutely closed to it. I've used Peavey gear the most. I've seen Peavey's PVi 8B mixer advertized, but have no hands on experience with it. I have seen its little brother, the PVi 4B, in action, at a wedding on the beach. Delivered the speaking voice well enough; music from an iPod or something was run through it, and that was okay. But I'd need more channels, so I'd be looking at the 8B version. Anybody have experience with this one? I am familiar with certain other brand names such as Behringer Mackie and Nady, and in my recent searches have come across the names Phonic and Gear One. I know nothing about these brands and the units they offer. Anyone?