|
Anyone know this old plan? huge 3 way top |
Post Reply 
|
Page <123> |
| Author | |
madboffin 
Old Croc 
Joined: 03 July 2009 Location: Milton Keynes Status: Offline Points: 1720 |
 Post Options
 Thanks(0)
 Quote Reply
 Posted: 14 November 2024 at 1:31pm |
|
They would probably work quite well if you replace the upper panel and tweeter with a horn and 1" driver (if you can find one to fit) and run them 3-way active. |
|
 |
|
|
Jan-2T
Registered User 
Joined: 18 October 2024 Location: Belgium Status: Offline Points: 137 |
Post Options
Thanks(0)
Quote Reply
Posted: 14 November 2024 at 2:52pm |
|
I have many fostex N-30 tweeters laying around, 1"voice voil and small enough horn to fit in there.
|
|
|
Music!
|
|
|
|
|
Earplug
Old Croc
Joined: 03 January 2012 Location: Europe Status: Offline Points: 7752 |
Post Options
Thanks(0)
Quote Reply
Posted: 14 November 2024 at 6:27pm |
|
Yes, you never know. With a proper (modern) DSP you could make them work
again. I would definitely get a 1" driver & horn in there. How many do you have? |
|
|
Earplugs Are For Wimps!
|
|
|
|
|
Jan-2T
Registered User
Joined: 18 October 2024 Location: Belgium Status: Offline Points: 137 |
Post Options
Thanks(0)
Quote Reply
Posted: 15 November 2024 at 8:06am |
|
I've got like 8 of those fostex tweeters and currently use a driverack PA.
|
|
|
Music!
|
|
|
|
|
Earplug
Old Croc
Joined: 03 January 2012 Location: Europe Status: Offline Points: 7752 |
Post Options
Thanks(0)
Quote Reply
Posted: 15 November 2024 at 11:32am |
|
Haha - I meant how many of those cabs do you have!  In any case, those Fostex look very similar to the Selenium DT150! I have a few of those in some cabs & they are pretty good. You can get titanium, or phenolic diaphragms for them, according to taste. I found the titanium a bit harsh & prefer the phenolic. In any case, I reckon that they would be better than the thing tacked on there at the moment. Maybe 2 per cab with a Y adaptor.  |
|
|
Earplugs Are For Wimps!
|
|
|
|
|
Jan-2T
Registered User
Joined: 18 October 2024 Location: Belgium Status: Offline Points: 137 |
Post Options
Thanks(0)
Quote Reply
Posted: 15 November 2024 at 12:42pm |
|
I have 2 cabs Exact what I was thinking, putting two in there, do you mean the Y piece like a piece of plumbing hardware? These are no threaded compression drivers, rather one unit. magnet and horn with diaphragm squished in-between. (I also like to avoid the harsher sound of titanium diaphragms)
|
|
|
Music!
|
|
|
|
|
Earplug
Old Croc
Joined: 03 January 2012 Location: Europe Status: Offline Points: 7752 |
Post Options
Thanks(0)
Quote Reply
Posted: 15 November 2024 at 1:44pm |
|
Ok, shame that they are not threaded. I'm not sure how you could do it then. Maybe lots of epoxy resin, hahaha. Screw-on Y adaptor:- They were also available for bolt-on drivers/horns, but are now quite rare. |
|
|
Earplugs Are For Wimps!
|
|
|
|
|
Jan-2T
Registered User
Joined: 18 October 2024 Location: Belgium Status: Offline Points: 137 |
Post Options
Thanks(0)
Quote Reply
Posted: 18 November 2024 at 11:58am |
  Fane Studio 12B Fane Studio 8M Beyma CP-21F Crossover writing: MODEL HL 612 B Verbiest 1985 MADE IN BELGIUM (and the company still exists today, same logo http://www.verbiest.be/) and someone closed up the reflex shelf port (guaranteed the same butcher who did the tweeter)  |
|
|
Music!
|
|
|
|
|
Earplug
Old Croc
Joined: 03 January 2012 Location: Europe Status: Offline Points: 7752 |
Post Options
Thanks(0)
Quote Reply
Posted: 18 November 2024 at 12:49pm |
|
Ok, I'm not a big fan of Fane drivers, but given the frequencies the cab covers, they may do the job. And that isn't a bad quality tweeter either, but definitely not there. Total horrible bodge. And wrong dispersion pattern for that cab.
 |
|
|
Earplugs Are For Wimps!
|
|
|
|
|
Jan-2T
Registered User
Joined: 18 October 2024 Location: Belgium Status: Offline Points: 137 |
Post Options
Thanks(0)
Quote Reply
Posted: 18 November 2024 at 2:52pm |
|
I may want to measure the internal volumes to find some nice speakers to fit the specs needed. I read the 12B would be well suited for horns. I have simulated reflex cabs, are the horns more difficult to sim? What tweeter dispersion angle would be more suited for this cab style?
|
|
|
Music!
|
|
|
|
|
Earplug
Old Croc
Joined: 03 January 2012 Location: Europe Status: Offline Points: 7752 |
Post Options
Thanks(0)
Quote Reply
Posted: 18 November 2024 at 3:41pm |
|
Yes, I think that horn loaded design is quite a bit more complicated. You maybe need to get Hornresp & spend a bit of time learning the process. You want a hf horn that matches the other 2 there already. Maybe 60º? The CP-21F is 140º. Far too wide. Edited by Earplug - 18 November 2024 at 3:44pm |
|
|
Earplugs Are For Wimps!
|
|
|
|
|
Jan-2T
Registered User
Joined: 18 October 2024 Location: Belgium Status: Offline Points: 137 |
Post Options
Thanks(0)
Quote Reply
Posted: 27 November 2024 at 9:09pm |
|
I installed Hornresp on my Linux (virtual XP) and got some results. The response for the 8" BLH looks to be too low to be real, especially with the tweeter 7500 Hz filter... grey reference sealed box 15l. (on axis for sealed the response stays level across higher freq, could ot select directivity for the horn though)
The 12 gives this next result, looks better but still not much above 1kHz, realistic enough? Compound Horn with the tapered reflex port
Same
driver in sealed chamber BLH gives higher but rimpled response,
less SPL below 200Hz, seems more plausible than the 8" I tried with other 8" drivers T.S. with similar results, any pointers, or is this cabinet just a crappy design? Edited by Jan-2T - 27 November 2024 at 9:15pm |
|
|
Music!
|
|
|
|
|
Post Reply
|
Page <123> |
| Tweet |
| Forum Jump | Forum Permissions You cannot post new topics in this forum You cannot reply to topics in this forum You cannot delete your posts in this forum You cannot edit your posts in this forum You cannot create polls in this forum You cannot vote in polls in this forum |
Topic Options
