Midwoofer options that fit into a ~4.25" square and play down to 100Hz (closed box)

[DS-21]

I'm looking for something that can fit into a 4.25" square and still give sufficient bass extension to blend with a sub in a background music or nearfield system in a 3L-per-midwoofer sealed cabinet. I would prefer as much volume displacement as can fit in that space.

Is there anything out there besides the Dayton ND-105 (Aurasound NS4 knockoff) or the newish Faital 4FE32 that I should look at?

[cjd]

That Dayton (Aura) is one of the few that side of the insane price line that really does well in a sealed box. Despite reaching surprisingly low, it's usable to a reasonably high frequency as well (though care in the crossover and a lower than usual cross frequency will be to your benefit)

C

[DS-21]

What about on the other side of the insane price line? Most expensive drivers just seem too big. I'd be willing to pay, say, 150% of the Scan Disco 10F price for something like that but with more volume displacement. Now, the Accuton "Cell" (which really just looks like an Aura NRT motor with a solid ring instead of chip magnets...) is too dear, but also too large and too "dedicated midrange" so the price is irrelevant.

[cjd]

So I was thinking 4" drivers, which got me off to a wrong start.

Actually not priced as bad as I (mis)remembered, how about the CSS VWR126X? I think you'll have to trim the basket to square, but if you do so it might squeeze in. Failure in successfully trimming could make it a more costly than anticipated endeavor...

Reports are the midrange quality is incredible.

Not sure how the Vifa NE123W-08 models up, though it appears it too would need a faceplate trim to work.

I had been thinking there was a Scan-speak mid-woofer, but between bad memory and not paying adequate attention to the dimension requirements, I guess I just got it all wrong.

C

[BOBinGA]

There is also the Fostex midwoofers. I've never used them, but the specs look like they would fit your needs. In fact, they almost look like drop in replacements.

http://www.madisoundspeakerstore.com/approx-4-fullrange/fostex-ff105wk-4-full-range/

-Bob

[DS-21]

Actually not priced as bad as I (mis)remembered, how about the CSS VWR126X? I think you'll have to trim the basket to square, but if you do so it might squeeze in. Failure in successfully trimming could make it a more costly than anticipated endeavor...

Alas, my klutz factor is too high to trust myself to trim a basket. If it wasn't either the CSS or the 4" Peerless HDS woofers would be great.

There is also the Fostex midwoofers. I've never used them, but the specs look like they would fit your needs. In fact, they almost look like drop in replacements.

http://www.madisoundspeakerstore.com...-4-full-range/

Interesting full-ranger. Looks like it really needs augmentation down low, though. For this project, F3 (~120Hz) is too high in a closed box, and volume displacement is a lot lower than the Aurasound NS4/Dayton ND105.

So the Aurasound/Dayton is what I'll probably use, though I'll wait to order until I see what kind of Black Friday discounts PE etc. offer, and if something else interesting comes up between now and then I can always jump on it.