6.5" woofer choice

[sreten]

no diy kit, please

Hi,

If you choose to ignore all the information in the SR71
regarding the ER18NRX then its your fat-headed loss.

rgds, sreten.

 

[chrisb]

indeed, don't let the well intentioned advice you asked for, or the technical facts get in the way of your obstinacy

I've heard a lot of similar projects at DIY get-togethers, maybe even the SR71s themselves, and when done well (there is no "best"), they can be amazingly satisfying.

Another candidate that just occurred to me is the CSS LDW7 - another device with an interesting history, but perhaps not with approved provenance or name recognition required.

Creative Sound - Product Details

It's sold by a firm that specializes in components and kits for DIYers, and several of their projects have received acclaim.

 

[LineSource]

Take a look at this SB Acoustics 3-way design thread. You could build the TM with SB29RDC-C000-4 tweeter and SB17NRXC35-4 midbass as a separate top cabinet first, and add a second cabinet with the two 8" woofers later to get boom-boom bass down to 28Hz. The TM-WW topology is one of the most popular because it can cover 20-20Khz in a modest width cabinet. Floor space for a 2-way on a stand is very similar to a TM-WW three way floor stander. Google SB17NRXC35 to find several 2-way DIY designs around the world and study the cabinet+crossover options.

SB Acoustics 3 ways
2 x SB Acoustics :: SB29RDC-C000-4
2 x SB Acoustics :: 6" SB17NRXC35-4
4 x SB Acoustics :: 8'' SB23NRXS45-8

search for "SB Acoustics 3 ways" or try this link:

http://www.diyaudio.com/forums/multi-way/212738-sb-acoustics-3-ways.html

 

[diypass]

ok thank you but here we are talking on two ways, not 3-ways
have you never used SB17NRXC35-4 ?

 

[swin1]

I've been pretty thrilled with the performance of Peerless drivers, they are just great value. I've posted a couple builds in the forums:

Another Peerless 830883 execution

Another peerless 830875 execution

Cheers
Andrew

 

[diypass]

I've been pretty thrilled with the performance of Peerless drivers, they are just great value. I've posted a couple builds in the forums:

Another Peerless 830883 execution

Another peerless 830875 execution

Cheers
Andrew

thank you but ny searching paper/composite woofer
anyway, those peerless are excelent

 

[swin1]

Where did you say you wanted paper only? I think if you want the performance you can get with modern drivers like the Peerless you need reinforced paper cones like in the Scan Speaks, very expensive though!

 

[system7]

I've been following this thread with interest, but am surprised that no-one has mentioned polycones yet.

SEAS with the U18RNX/P and Peerless with the 830874 still make some tidy ones. The classic one was probably the Vifa P17WJ-00-08. Very tidy frequency response and as is usually the case with polycones, easy to filter. Lower you can cross them, the better IMO. Say 2.5 Khz.

Troels Gravesen does an homage to this driver here:
18W-8434G00

 

[BTwelve]

Why is that more folks don't use these?
Eminence AlphaLite 6A speaker. The Eminence AlphaLite 6A is a 6" 8 ohm speaker. AlphaLite-6A is a 100 watt RMS 6.5" lightweight mid-bass speaker.
Not up to snuff??

 

[KaffiMann]

Why is that more folks don't use these?
Eminence AlphaLite 6A speaker. The Eminence AlphaLite 6A is a 6" 8 ohm speaker. AlphaLite-6A is a 100 watt RMS 6.5" lightweight mid-bass speaker.
Not up to snuff??

For a 3way sure. Most 6" pro drivers have decent midrange and increased sensitivity compared to regular drivers, but the fs is usually a bit high, since OP is looking for 6.5" AND bass 126hz fs "does not compute"

Edit:
But when considering pro drivers the Faital 6FE100 can really shine in the right design.