88 Special a new Jeff Bagby Design

[kevin007]

Seems Jeff and Erich have been busy lately.

88 Special

Perhaps Jeff and Erich can fill us in on this design and let us know which speakers we can pair it with.

Kevin

[ejh2854]

Re: 88 Special a new Jeff Bagby Design

Can't wait for them to come out with the 88 Magnum version.



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[Zach C.]

Re: 88 Special a new Jeff Bagby Design

Can't wait for them to come out with the 88 Magnum version.



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I built some of those once...

once!

[denton]

Re: 88 Special a new Jeff Bagby Design

I was afraid they'd be as BIG as a Buick 88 Special.

[rhodesj]

Re: 88 Special a new Jeff Bagby Design

Cool beans. I'd love to know what the horizontal polar response is. I've got a relatively wide seating area and would love a speaker to suit.

[ejh2854]

Re: 88 Special a new Jeff Bagby Design

I built some of those once...

once!

lol Glad somebody got it ;)

.

[Pallas]

Re: 88 Special a new Jeff Bagby Design

Cool! Look like just the thing to sit on flanking sub/stands blended high for floor bounce. Which makes me wonder why they're vented. Mains that go dipole below tuning are a pain to integrate with subs.

[djg]

Re: 88 Special a new Jeff Bagby Design

It's getting hard to keep up with Erich.

[Jeff B.]

Re: 88 Special a new Jeff Bagby Design

Cool! Look like just the thing to sit on flanking sub/stands blended high for floor bounce. Which makes me wonder why they're vented. Mains that go dipole below tuning are a pain to integrate with subs.

They're vented in order to get to 60Hz. I don't like big speakers that only reach 100Hz. It just doesn't feel right to me. Of course, someone can plug the ports or build a baffle without ports if they want.

[Jeff B.]

Re: 88 Special a new Jeff Bagby Design

Seems Jeff and Erich have been busy lately.

88 Special

Perhaps Jeff and Erich can fill us in on this design and let us know which speakers we can pair it with.

Kevin

When I saw the title I said, "what the heck, I never did a design by that name?" Then when I saw it I understood. I sent Erich the details and told him he could name it whatever he wanted. I don't think he ever told me what he called it.

I designed it to work for application where someone wanted a center channel that was shorter than my Tempest or Zephyrs. It was designed to have about the same sensitivity as the Tempest and uses the same high frequency driver.

[killa]

Re: 88 Special a new Jeff Bagby Design

That denovo woofer looks awfully familiar. Hmm where have I seen it before? Did EricH have eminence make some drivers for him?

[Jeff B.]

Re: 88 Special a new Jeff Bagby Design

Cool beans. I'd love to know what the horizontal polar response is. I've got a relatively wide seating area and would love a speaker to suit.

I don't have a graphs of the horizontal polar response to show, but it's not as wide as a speaker like my Tempest. I normally don't like side by side woofers, but this design was done to create a shorter speaker. Trade-offs. I lowered the crossover to below 1kHz but you are still limited to what two side by side 8" drivers can do. Modeling indicates a decent 45 degree window. However, I walked back and forth across my room and didn't really hear any drop-outs that concerned me over a pretty wide field.

[Jeff B.]

Re: 88 Special a new Jeff Bagby Design

That denovo woofer looks awfully familiar. Hmm where have I seen it before? Did EricH have eminence make some drivers for him?

Yes, it is a custom model just for Denovo.

[killa]

Re: 88 Special a new Jeff Bagby Design

Yes, it is a custom model just for Denovo.

Interesting. Can you elaborate on the differences? I'm assuming it is similar to beta 8.
Edit: just realized they are 16ohm. There is 1 difference I can see.

[Jeff B.]

Re: 88 Special a new Jeff Bagby Design

Interesting. Can you elaborate on the differences? I'm assuming it is similar to beta 8.
Edit: just realized they are 16ohm. There is 1 difference I can see.

I really think details should come from Erich. They're his drivers.