High efficiency...this is my kind of thread.
I have two pair of similar Cerwin Vega speakers. They're the LS-12 model. They came out about 10yrs ago. The pair I bought new I've treated well and they still sound fine. The pair I bought used, the enclosure needs to be reglued and for some reason the tweeters are so loud they make my ears bleed. It's likely a crossover issue, but I've not wanted to take the time to fix it.
Anyhow, all I'm saying is be careful buying used...now on to the tread.
Big tower speakers that do not rely on a subwoofer are great and I will agree with you. After living with the not-so-audiophile sound quality of my CV's, I wanted something just as loud, if not louder, but of better sound quality.
[story that lead me to new info]After doing much research and learning the physics behind loudspeakers, I found out tweeters end up being the weak link in a speaker. So I needed a highly efficient tweeter, but one that could handle a lot of abuse. I ended up going with the Fountek NeoPro5i from madisound.com at 610/pr. I also already knew that for the woofer (15"), I wanted the AEspeakers.com Lambda series woofers 568/pr. Similar to this design by SalkSound, but with the 15" version of that woofer and larger tweeter.
http://www.salksound.com/speakers_archos.shtml
However I never could get a mid picked out...paralysis through analysis. But the PHL1120 used in the one pictured above would be a venerable option.[/story]
I've done a lot more searching around since then and have noticed a push towards large 2way speakers using either a 12 or 15" woofer and a compression driver mated to a 12 or 15" waveguide due to their efficiency, simplicity, and directivity.Commercial options:
http://www.emeraldphysics.com/....htmlh ... /Summa.htm
E-Wave DIY speakers:
http://www.audiokarma.org/foru...27959h ... w7pTwpx0K0 Video
And many more commercial and DIY options...
With these 2-way designs, particularly the DIY kits, you can buy good high quality drivers (raw speakers), get a well designed crossover, and save money because you do all the work yourself.
A kit I'm eye-balling will cost around $600 plus enclosure costs, but a person could build the E-wave for around 450 plus enclosure costs and I wouldn't hesitate to think that it would surpass the output of the Cerwin Vega's, but I'm curious how good they sound. There's a lot of testimonials with people saying how good they sound, but I'd like to hear them for myself.
If only there weren't so many speakers I wanted to build...
I'm curious, how much are you wanting to spend?
*edit* I see those compression drivers for the E-wave are on sale for 84/pr. I may pick a pair up and play with them when I make my next order at PartsExpress.com
Modified by Looneybomber at 11:00 AM 8/27/2009