Search found 20 matches

by kjacobs
Thu Sep 28, 2017 10:45 am
Forum: Everything Else
Topic: Slow PM Post Speed???
Replies: 2
Views: 900

Re: Slow PM Post Speed???

AHA! That explains how it works.....a little different than normal email. Thanks for the heads up.
by kjacobs
Thu Sep 28, 2017 9:23 am
Forum: Everything Else
Topic: Slow PM Post Speed???
Replies: 2
Views: 900

Slow PM Post Speed???

Hi everyone......sooooo, is it just me or is the board always kinda slow at sending PM messages?? I am a bit new to using the PM side of the forum, but I have noticed messages getting "stuck" in the outbox and sitting for hours before actually getting moved to sent. Is this normal behavior...
by kjacobs
Sun Sep 03, 2017 11:05 am
Forum: Everything Else
Topic: Possible New Speaker Design???
Replies: 23
Views: 3899

Re: Possible New Speaker Design???

Thanks for the measurement from each end. The comp driver still looks like it will hit the frame of the Delta....at least based on the measurements of the GM500 horn suggested in my old "original" plans from yesteryear. Unless I used a much cheaper, smaller diameter driver which I do not w...
by kjacobs
Sun Sep 03, 2017 10:20 am
Forum: Everything Else
Topic: Possible New Speaker Design???
Replies: 23
Views: 3899

Re: Possible New Speaker Design???

Well....I have done a bunch of measuring to see if comp drivers would fit in the DR280 with the Delta Pro 12-450. I just don't see how it will work with the large frame of the Delta in there. It would push the comp horns almost to the top and bottom of the cab and I am not sure if the horn flares wo...
by kjacobs
Fri Sep 01, 2017 9:42 am
Forum: Everything Else
Topic: Possible New Speaker Design???
Replies: 23
Views: 3899

Re: Possible New Speaker Design???

OK....so I went back and looked through my sets of plans. I have 2 updated sets for the DR280, but the original plans are dated with a creation date of 2006. I had originally ordered the DR290 plans (as they were separate at the time) and then built the piezo version using the DR290 plans. I think a...
by kjacobs
Fri Sep 01, 2017 3:44 am
Forum: Everything Else
Topic: Possible New Speaker Design???
Replies: 23
Views: 3899

Re: Possible New Speaker Design???

That sounds like a excellent plan.....except.....I was under the impression that my DR280s, built from 2009 plans, do not have room for compression drivers when using Delta Pro 12-450a speakers. I believe compression drivers only worked with Neo Magnet drivers in that build of cabinet??? I could be ...
by kjacobs
Thu Aug 31, 2017 1:07 pm
Forum: Everything Else
Topic: Possible New Speaker Design???
Replies: 23
Views: 3899

Re: Possible New Speaker Design???

This is partly a sound quality issue and partly a coverage issue. The piezos in the updated cabinets were very bright, despite rewiring and adjusting the levels numerous times in the hi section. However, the piezos also exhibit a very narrow, pin point vertical coverage (which is good for some situa...
by kjacobs
Wed Aug 30, 2017 6:18 pm
Forum: Everything Else
Topic: Possible New Speaker Design???
Replies: 23
Views: 3899

Re: Possible New Speaker Design???

Maybe use 6-7 Eminence Alpha 3-8 (or 3" Faital Pros) in the front of the DR280 (with a sealed chamber behind them). Without some kind of horn in front of 'em, you'll probably get horrible horizontal dispersion. Then how do a bunch of other companies get away with using a long string of small d...
by kjacobs
Wed Aug 30, 2017 1:41 pm
Forum: Everything Else
Topic: Possible New Speaker Design???
Replies: 23
Views: 3899

Re: Possible New Speaker Design???

Hi Brent..... I can see the benefit in 2 comp drivers in easing the work load of one driver. The idea of the ribbons is very interesting, although expensive as you mentioned. Another thought I had was borrowing from the column array designs I have seen. Maybe use 6-7 Eminence Alpha 3-8 (or 3" F...
by kjacobs
Tue Aug 29, 2017 7:53 pm
Forum: Everything Else
Topic: Possible New Speaker Design???
Replies: 23
Views: 3899

Re: Possible New Speaker Design???

I considered the comp horns in the DR280....but my plans only showed those working with the neo magnet 2512 I started with. I now have Delta Pro 12s so the magnet would get in the way.....unless there is something I don't know. I also did not want to use 2 comp drivers per box.....1 should be plenty...
by kjacobs
Tue Aug 29, 2017 7:15 pm
Forum: Everything Else
Topic: Possible New Speaker Design???
Replies: 23
Views: 3899

Re: Possible New Speaker Design???

Hi Grant and thanks for the reply. I went over and read the other thread for fun.... I originally built my DR280s with piezos from around 2009ish plans, before the crossover addition and changes to the design. They worked great for 6 years before performance started suffering and I found air leaks i...
by kjacobs
Tue Aug 29, 2017 5:48 pm
Forum: Everything Else
Topic: Possible New Speaker Design???
Replies: 23
Views: 3899

Possible New Speaker Design???

I have owned a set of DR280s for over 8 years and they have done well for our sound company. However, recently I have been evaluating a new speaker building project and looking at various ideas for designs. One cabinet that really intrigues me is the KV2 VHD2 box (and its smaller VHD1 companion box)...
by kjacobs
Mon Jan 26, 2015 9:59 pm
Forum: Everything Else
Topic: Largest Event With A BF System Contest????
Replies: 12
Views: 2441

Re: Largest Event With A BF System Contest????

Cool....its great seeing the wide variety of venues and systems in use. Agreed that Pulseman and camrynekai have some pretty nice systems....and I did follow Hifibob's club install thread which looked amazing. But, not sure who can compete with the 80,000 watt Dancetonauts....LOL. I'd be curious to ...
by kjacobs
Sat Jan 24, 2015 4:52 pm
Forum: Everything Else
Topic: Largest Event With A BF System Contest????
Replies: 12
Views: 2441

Largest Event With A BF System Contest????

So.....was just sitting back the other day thinking about all the BF speaker options and this question came to mind out of the blue, so figured I would open a can of worms and see what replies come of it....

What is the largest event done with a BF system?? Indoor or Outdoor? Audience Size? Etc......
by kjacobs
Mon Sep 24, 2007 12:56 pm
Forum: Tips, Techniques and Supplier Links
Topic: Hanging DR280's Revisited....
Replies: 38
Views: 8792

Okay, here was my small idea for how to possibly hang multiple DR280's.... http://w3.gorge.net/jacobsprod/images/Hanging-Bracket.jpg This is strictly in the thinking stage right now. It mainly consists of some 1/8" or 3/16" steel plates, 3" wide by ~ 27" tall with a second steel ...