I bought these after quite a bit of tire kicking. I had extensive experience with the SR 4719 and in the end just wanted a 2x18 sub over a horn.
I thought I'd write a little bit about my QW 218 subs after playing with them for two weeks.
First thing you notice is that these are seriously good looking boxes. They are compact for a 2x18 design and are designed to stack on each other. They weigh in at 147 lbs each. The boxes really do have a "high end" aura about them.
Hook ups are all Speakon. There are two NL4 inputs in parallel, an NL8, and a NL4 thru.
The subs are rated at:
1600 watts continuous
3200 watts program
6400 watts peak
They have a usable frequency range down to 30 Hz and are capable of 132 dB SPL continuous and 138 dB peak. SPL @ 1 meter with 1 watt (2 V input)is 100dB.
How do they sound? Well... I think quite good. They sound different than the SR 4719. Not better...not worse, just different. They are serious subs and I am very pleased with the pair. After seeing and hearing the quality of these boxes, I am seriously considering selling my JBL tops and moving to a complete QW system. My JBL 4733s are nice but I like the idea of a matched, four way, flyable system.
Anyway... I have not been much of a Peavey fan in the past. This time, I really think that they have fielded a nice system that will work well for a small to mid-sized sound company. The sub is a clear winner.