You will probably see a LOT of opinions on the new line in the coming days as they will be displayed at the Mobile Beat show this week.
I own both SP2s and Impulse 1015s--they are virtually identical in specification and components other than cabinet construction and weight--the SP specs vary slightly over the years by series--G, XT, etc. The PR15 uses a neodymium magnet version of the Black Widow--with a Kevlar impregnated cone.
I agree with a previous poster--if you like your Peaveys, stick with them. I do use EV speakers as well, but they're all heavy wood cabinets and line arrays, so I can't comment on their lightweight stuff, but they make great speakers.
As for the poster commenting on great Behringer speakers--there is no such thing. Not really a great Behringer anything...
I don't own a GX5, but have played with one a bit (caveat)--IMO it would be a good match for the Impulse 1015s. Specification-wise the SP2 and Impulse are virtually identical. In the real world (sound-wise) this is most likely the case as well. Many people, myself included, tend to claim a slightly better low end out of the SP2 due to the slightly larger volume cabinet and wood construction--but not enough difference that your clients are likely to notice. Being "old-school" I am biased in general against plastic or lightweight anything--but I own these, so that must say something. I actually even own a pair of the 12" Impulse 200s as well. I use them for live sound monitors or side fills.
You may even want to consider the PR15s as a way to knock off a couple more pounds.
Another consideration with the Impulse 1015s--I power them with Carver PM 1.5 amps running mono at 1200 watts/8 ohm per cabinet, so they can take some real-world power. If you prefer, they are also bi-amp capable.
i was looking at the pr15s but a lot of bad reviews on them..do they use the black widow on the pr15s?
I'm an EV fan, but I also have a set of PR15s ( 12's too, for that matter). The combination of sound, light weight, durability, load handling ability ( Their specs are actually clear and accurate, where so many other mfrs. are not) and good pricing make them almost unbeatable for small venue use.
Since I used to own an electronic component distributorship, and I sold them their parts, I can also tell you that they are built with better quality components then most speakers costing a LOT more.
You already like your current Peaveys, so why not stick with 'em?
I'm not a huge Peavey fan but i do actually have a pair of those pr15's and they are AMAZINGLY light and sound pretty good.
T-BONE--since you already have a decent amp and your SP4s to use for bigger stuff, I'd want to stick with passive speakers. But if you want to throw powered speakers into the mix, I'd recommend that you listen to some Mackies as well as the QSCs--I don't own any, but one guy that works for me has an all-active Mackie system that sounds pretty decent for small to mid size venues.
I apologize for my previous misinformation regarding the specs on the PR15--I thought they were closer to those of the Impulse 1015. I don't own the PRs, but I do own SP2s, Impulse 1015s and Impulse 200s, and will stick by my recommendation of the Impulse 1015--and others seem to agree. Essentially, they are SP2s in plastic cabinets, and you are familiar with the SP line from Peavey.
Didn't mean to steal your thread and turn it into a Peavey marketing platform, but in terms of quality, performance and price point, I think you'll be pleased. As I may have mentioned, I also use a lot of EV and EAW speakers, but I'm not knowledgeable on their smaller/lighter products, so I'll leave that discussion to others. I do know that their entry price levels are higher.
As for Behringer...REALLY??? I guess "you get what you pay for" is the only comment I can offer.