6.5"-7" Woofer Suggestions For .75ft3 Boxes...

[foxfire3]

Other than the Dayton RS180, I'm looking for 6.5"-7" woofers that will work well in a .75ft3 box.

Most I've looked at seem to favor .5ft3 boxes or smaller.

Thank you...

[Tony G]

Other than the Dayton RS180, I'm looking for 6.5"-7" woofers that will work well in a .75ft3 box.

Most I've looked at seem to favor .5ft3 boxes or smaller.

Thank you...

http://www.parts-express.com/project...oject=Usher701
http://murphyblaster.com/content.php?f=usher2way.html

[LouC]

The Peerless 831735 buyout would hit 40 hz in 3/4 cu. ft. with a 2" X 7" port.

[XtremeRevolution]

Here's a good start on a proven design.

http://techtalk.parts-express.com/sh...d.php?t=223120

I have enough crossover parts and drivers for 3 pairs of these. Contact the OP for the crossover design. The speakers are currently on a very low buyout sale, which makes them an excellent value. These are the same 6" drivers used in these $2500 speakers:

http://www.greenmountainaudio.com/rio/

[rpb]

Other than the Dayton RS180, I'm looking for 6.5"-7" woofers that will work well in a .75ft3 box.

Most I've looked at seem to favor .5ft3 boxes or smaller.

Thank you...

You can always add filler to reduce the internal volume. Chunks of wood, or maybe styrofoam.

I like the bass and midrange of the 831735, but the x-over may give you fits like it has me. A lot will depend on where you want to cross, and how the speaker interacts with the room.

[PWR RYD]

You didn't state a price point so I will throw these out there as suggestions:

the Usher 8945A and 8945P

I like the bass and midrange of the 831735, but the x-over may give you fits like it has me. A lot will depend on where you want to cross, and how the speaker interacts with the room.

How high are you trying to cross them over?

[critofur]

More volume in your enclosure is a great thing to have for the woofer - most of us are trying to figure out how to get our speakers SMALLER.

But anyway, check out this thread:

http://techtalk.parts-express.com/sh...hlight=W6-789E



Folks that have used them mostly seem to be quite pleased with that woofer. It does have a remarkable combination of sensitivity + smooth top end.

Check out this post: http://techtalk.parts-express.com/sh...9&postcount=57

[foxfire3]

You didn't state a price point so I will throw these out there as suggestions:

the Usher 8945A and 8945P




How high are you trying to cross them over?

No, price isn't really an issue.
How about the Usher 8948A?

I will cross no higher than 2KHz to avoid beaming.

[PWR RYD]

If price wasn't an issue this is definitely what I would go with:

https://www.madisound.com/store/prod...roducts_id=929

[DoubleTap]

8948A is perfect in a .75cu/ft, gives an EBS-3 alignment with an F3 in the high 30's.

[rpb]

You didn't state a price point so I will throw these out there as suggestions:

the Usher 8945A and 8945P




How high are you trying to cross them over?

I got one design working with a 1.8k x-over. (Best I remember) But in trying to build a second design with a sloped baffle and different tweeter, I just can't get things to match up. The tweeter is partly to blame too. I prefer woofers that are a little easier to cross where I want.

Edit The working design x-over is 2.5k.

[foxfire3]

8948A is perfect in a .75cu/ft, gives an EBS-3 alignment with an F3 in the high 30's.

Thanks DoubleTap...can you please explain what a EBS-3 alignment is?

[Pete Schumacher ®]

Thanks DoubleTap...can you please explain what a EBS-3 alignment is?

Extended B a s s Shelf

If you take a driver with a Qts less than .4, you can slightly oversize the enclosure, and tune lower, to create a "shelf" of extended low end response. Instead of "flat" to the -3dB point, EBS alignments might sag 1dB, stay flat for a bit, and then finally drop off, but at a lower frequency than the "flat" alignment.

[foxfire3]

Thank you Pete!

Now I see what's going on with that type of alignment.

[Servicetech]

If you are trying to keep cabinet width down you could run 2 woofers. Use one for BSC.

[foxfire3]

If you are trying to keep cabinet width down you could run 2 woofers. Use one for BSC.

The boxes are PE .75ft3 boxes with a 10" wide baffle.

[Servicetech]

The boxes are PE .75ft3 boxes with a 10" wide baffle.

Why not use an 8" driver?

[foxfire3]

Why not use an 8" driver?

Because I don't know of many 8" drivers that will work well for a 2-way.
I have been looking at the Visaton AL 200, but it looks like it favors a larger box.

[PWR RYD]

I think the 8948A that DoubleTap suggested could work very well with a robust tweeter like the Dayton RS28F-4.

[foxfire3]

More volume in your enclosure is a great thing to have for the woofer - most of us are trying to figure out how to get our speakers SMALLER.

But anyway, check out this thread:

http://techtalk.parts-express.com/sh...hlight=W6-789E



Folks that have used them mostly seem to be quite pleased with that woofer. It does have a remarkable combination of sensitivity + smooth top end.

Check out this post: http://techtalk.parts-express.com/sh...9&postcount=57

I have several of the W6-789S woofers, which is the discontinued shielded version of this woofer.

Frequency response on a 10" baffle is as good as the Peerless '875 or better.
Also, I prefer the sound of the Tang over the Peerless in the mids.

Problem is the T/S parameters I measured are way off from the manufacture's.
Fs 63.9Hz
Qts .618
Vas .624ft3
Le 1.18mH
Spl 89.9dB

With a Qts that high, I would think this would be a candidate for a sealed box.