Need help in designing a full range, one driver speaker... (1 Viewer)

I'm currently using the W3-871S 3" TB full range speakers in my bedroom. They sound remarkably good for the money, but don't get very loud. A friend of mine who is very tight on money right now is considering builing a some single driver speakers also. I have looked into the W4-930SA for him. Has anyone used these? They are rated 40W with 2mm Xmax. FR is 65-18K ( I think). They are available from Acoustic Technologies (used to be Nuera) like the W3-871S.

Thanks,
Dennis

I also built a pair of speakers using the TB W3-871S driver and they are very good for the price. Right now I think I will try another pair using the new wr125s driver from www.creativesound.ca . It is a 4" full range with Adire's XBL^2 so it should be extremely accurate, and it has 6mm Xmax so extension should also be very good. If it lacks the high end "sheen" Wayne mentions I will add tweeter later. Hope this helps.

Have you considered the Aura 3" from Madisound?

I recommend using the W3-871S or the W4-1052SA with mods. The 3" TBs from PE aren't going to give you the same performance. Consider carefully the mini line array route. There are inherent problems that are difficult to overcome. You'll notice that most incorporate a tweeter to help with some of this such as the designs from Creative Sound, RAW Acoustics and GR Research. The most common problem is if the line ends below ear level there is a large drop in HF response. This is why Dr. Jim Griffin describes floor to ceiling designs in his white paper. One very simple design would be a small bipole ML-TL using the 871s. You may or may not roll off the rear driver with a single inductor. This design will produce higher SPL, better LF response than a single driver design and less of a boxy sound. It might not be up to the SPL levels needed for a large HT room but it's a good start into full range drivers.

thread for TL W3-871S

Try these guys out... The whole TL thing may not be your cup-o-tea, but definitly quite a few single driverprojects and single driver recommenations.
www.t-linespeakers.org

Yep, that's Dave Dlugos' site. You'd better be careful, next thing you know you'll be hanging out at Fullrangedriver.com

There is a Vifa MG-series woofer (yellow woven glass fiber 4" cone) that is supposed to function very well as a full-range driver. It only has response out to 15,000 Hz and down to 100 Hz, but supposedly it does everything else very well.

Funny you should mention that. Scroll down a tad.

Vifa T-line