Search found 43 matches

by speekerbldr
Thu Jan 21, 2021 2:02 pm
Forum: General Speaker Building
Topic: Eclipse W6520R-8
Replies: 1
Views: 11147

Re: Eclipse W6520R-8

You still around brookhart?

I'm using this woofer in a design for a friend of mine. I just need to do final assembly on it so that he can have and review it. The design uses the RST28F. It's made to be placed on a shelf or against a wall.
by speekerbldr
Fri Mar 03, 2017 5:05 pm
Forum: General Speaker Building
Topic: Best value two-way bookshelf?
Replies: 7
Views: 17445

Re: Best value two-way bookshelf?

Most years there's a DIY event in Kentucky and one in Sioux City Iowa.  Though I don't know of any in Missouri or if those are close enough for you.

https://www.facebook.com/Iowadiy/
by speekerbldr
Fri Dec 16, 2016 10:55 am
Forum: General Speaker Building
Topic: Painting a baffle
Replies: 4
Views: 10681

Re: Painting a baffle

I've asked a cabinet maker to see what he says, but Marks advice sounds good for where you are at.
by speekerbldr
Tue Dec 13, 2016 2:09 pm
Forum: General Speaker Building
Topic: Welcome & Guidelines
Replies: 39
Views: 114965

Re: Welcome & Guidelines

I'm with 'Wolf'!  Welcome!
by speekerbldr
Mon Dec 12, 2016 11:45 am
Forum: General Speaker Building
Topic: Need help with simple speaker build.
Replies: 2
Views: 8444

Re: Need help with simple speaker build.

Bill is spot on Mark.   As Bill implied there are many very well received kits out there, starting at just over $100, sans box on this site.  And a pre-designed kit is a great way to start the learning process while being confident you'll end up with great sound.   If, as is the case for some, you a...
by speekerbldr
Tue Nov 22, 2016 11:01 am
Forum: General Speaker Building
Topic: Jeff Bagby's Kairos 3 way project completed
Replies: 9
Views: 22932

Re: Jeff Bagby's Kairos 3 way project completed

Very well documented and great work Mike!!
by speekerbldr
Fri Sep 23, 2016 4:48 pm
Forum: General Speaker Building
Topic: Vas Measurements
Replies: 1
Views: 5886

Re: Vas Measurements

Awesome, thank you Meniscus.  Being good enough for Vance and Jeff, it's certainly good enough for me!
by speekerbldr
Mon Jun 27, 2016 1:28 pm
Forum: General Speaker Building
Topic: New Peerless STW350 15" on the horizon...
Replies: 2
Views: 8743

Re: New Peerless STW350 15" on the horizon...

Wow.  They suggest a 160L box for vented use but according to the EBP (41) this is definitely for sealed box use.  And the 'compact' sealed box is 80L! Then again, even at 80W input (vented) you aren't even coming close to XMax above 16hz.  It takes 250W (and about 108db) to reach Xmax and with thei...
by speekerbldr
Wed Jun 22, 2016 12:03 pm
Forum: General Speaker Building
Topic: Kairos Build with traditional joinery
Replies: 5
Views: 12232

Re: Kairos Build with traditional joinery

Yes, unique and very handsome looking.
by speekerbldr
Wed Jun 22, 2016 9:56 am
Forum: General Speaker Building
Topic: Upcoming Excelsior Passive Four Way in 2016
Replies: 5
Views: 12905

Re: Upcoming Excelsior Passive Four Way in 2016

How's this one coming Jason?  Sure is an ambitious design!  It should be awesome when it's all complete!  
by speekerbldr
Thu Jun 16, 2016 12:22 pm
Forum: General Speaker Building
Topic: Introducing: The ArielZ
Replies: 5
Views: 12237

Re: Introducing: The ArielZ

Some years ago (yes, this has been in development for that long) Paul K designed a proper MLTL for this system. Thank you Paul. I'll add those plans here soon, for those that wish to have a much simpler cabinet design. Baffle width and height are the same in that design and I would also suggest keep...
by speekerbldr
Thu Jun 16, 2016 12:15 pm
Forum: General Speaker Building
Topic: Introducing: The ArielZ
Replies: 5
Views: 12237

Re: Introducing: The ArielZ

Mr. Olson created a simple, effective network for the original, using very smooth drivers. The Network in the ArielZ is, of necessity, a bit more complicated. In their passband both drivers in the Z are very smooth, but being Metal both drivers suffer metal cone breakup. Fortunately this is easily t...
by speekerbldr
Wed Jun 15, 2016 2:43 pm
Forum: General Speaker Building
Topic: Introducing: The ArielZ
Replies: 5
Views: 12237

Re: Introducing: The ArielZ

This image shows the effects of swapping resistors in the network, from 1 ohm to 1.4 ohms. The effects are visible from 2k and up. It also shows the predicted reverse phase notch for the flatter (1 ohm) version. Using the softer sounding 1.4 ohm resistor results in a slightly shallower predicted not...
by speekerbldr
Tue Jun 14, 2016 8:13 pm
Forum: General Speaker Building
Topic: Introducing: The ArielZ
Replies: 5
Views: 12237

Re: Introducing: The ArielZ

The original Ariel had a bit of a sag in the measurements, possibly to keep the sound from getting aggressive. I've opted for a slight downward tilt to the overall response to achieve similar goals. Stop the sound from being bright or aggressive. To my ears I've achieved this goal. A slight change i...
by speekerbldr
Tue Jun 14, 2016 2:24 pm
Forum: General Speaker Building
Topic: Introducing: The ArielZ
Replies: 5
Views: 12237

Re: Introducing: The ArielZ

There are plans for the Ariel cabinets out there, though some changes would be necessary to accommodate the new drivers. The flange on the ZA14's is slightly smaller than that of the original P13WH. And the RS28A flange is a bit larger than that of the D2905. Other than that, no cabinet changes shou...