Which cab formy beyma 12mi100's? |
Post Reply | Page <12 |
Author | |||
concept-10
Young Croc Joined: 17 May 2016 Status: Offline Points: 1292 |
Post Options
Thanks(0)
|
||
perfect 😊
|
|||
bob4
Old Croc Joined: 29 February 2004 Location: Finland/Germany Status: Offline Points: 1842 |
Post Options
Thanks(0)
|
||
I swear, speakerplans forum is like an addiction....... |
|||
Earplug
Old Croc Joined: 03 January 2012 Location: Europe Status: Offline Points: 7199 |
Post Options
Thanks(0)
|
||
Yes, those cabs would need to be stacked on top of each other, or a large gap left between them. I just did a quick search and found these: http://www.ebay.co.uk/itm/Martin-Audio-MH212-Philishave-Midrange-pair-of-cabs-with-RCF-L12P24-/361697546269?hash=item5436da901d:g:PPQAAOSw65FXudgm One of the best mid-cabs ever made. So you could just sell your Beyma´s and buy those! |
|||
Earplugs Are For Wimps!
|
|||
bob4
Old Croc Joined: 29 February 2004 Location: Finland/Germany Status: Offline Points: 1842 |
Post Options
Thanks(0)
|
||
ok, so I remembered that there is some info on this subject in the speakerplans faq: http://speakerplans.com/index.php?id=faq10
Beyma 12MI100 : EBP = 58/0,23 = 253 BL =21,6 -> should be useable! now we just need someone who can do a hornresp sim of it in a suitable DIY horn, like mt122 Edited by bob4 - 06 September 2016 at 8:51pm |
|||
fatfreddiescat
Young Croc Joined: 15 October 2010 Location: N.E.Wales Status: Offline Points: 1081 |
Post Options
Thanks(0)
|
||
+1 effin loud as well
|
|||
JBK
Registered User Joined: 03 March 2016 Location: Besançon Status: Online Points: 262 |
Post Options
Thanks(0)
|
||
Well thanks guys for taking the time, speakerplans is an addiction indeed !
I saw that http://dubsounds.free.fr/dubforum/viewtopic.php?f=15&t=3669 The guy (blackboard jungle soundman) is still making those, they're designed for the 12mi100 (that's the driver they are using in), When selling the horns they give the dimensions of trapezoidal boxes suited for those horns. Given the fact that we're no pro builders nor designers I think this would be an easy solution (just build a trapezoid box, no funny horn business with angles everywhere). Also I've heard BBJ and while it's not my favorite sound in terms of quality and clarity they do the job! If i get the time and patience I'll try to sim the drivers in a mt122. Maybe not a cheap solution but easy. As for the martin audio, thanks but I won't buy something I've never heard :/ also check our sound we want to build boxes with the same wood so that it stays coherent visually. Edited by JBK - 07 September 2016 at 9:34am |
|||
Earplug
Old Croc Joined: 03 January 2012 Location: Europe Status: Offline Points: 7199 |
Post Options
Thanks(0)
|
||
"As for the martin audio, thanks but I won't buy something I've never heard"
Ok, fair enough - but I´d say that anything made by Martin is going to be pretty good/better than some DIY horns, especially the Philies that definitely have stood the test of time... Also I note that you don´t have any processor. So how do you hope to align any horn cab you buy or build to the other speakers in your stack? That´s just asking for more problems. So unless you do take the plunge and invest in a DSP, you may be better off just sticking with simple front-loaded cabs. |
|||
Earplugs Are For Wimps!
|
|||
JBK
Registered User Joined: 03 March 2016 Location: Besançon Status: Online Points: 262 |
Post Options
Thanks(0)
|
||
Yes I intend to buy a processor if it's the case.
|
|||
bob4
Old Croc Joined: 29 February 2004 Location: Finland/Germany Status: Offline Points: 1842 |
Post Options
Thanks(0)
|
||
Did you see these comments?
|
|||
JBK
Registered User Joined: 03 March 2016 Location: Besançon Status: Online Points: 262 |
Post Options
Thanks(0)
|
||
Yes thanks for those insights.
The fact is that with a horn I expect to gain a few db , and directivity. as i doubt my cp380 can go down to 1000Hz So now I saw those moulded horns on redlion and they were made for the beyma 12mi100, so it seemed a good solution, not financially but the most simple technically ( no need to sim anything, it's real world proven combination) in order to gain db (with horn) and directivity (over 1000Hz with an angle) Maybe your solution is the simplest in order to get rid of the phase issues but I'm affraid it would still lack directivity (which is not the major issue btw) over 1000Hz, and maybe it would still lack some volume compared to the other bands, but we could just build one more box and buy 2 more hps to compensate) |
|||
bob4
Old Croc Joined: 29 February 2004 Location: Finland/Germany Status: Offline Points: 1842 |
Post Options
Thanks(0)
|
||
http://https://www.beyma.com/products/compressiondrivers/1CP380M8
according to datasheet power rating is 70W AES above 1,5 kHz, the second rating is probably thermal maximum. 1,2 kHz is recommended as lowest crossover frequency. 107 dB sensitivity on a horn -> ~125 dB SPL with 64 W input, +6 dB for using four horns -> ~131 dB total. Maybe 3 dB more for peaks. according to winisd, one of your mid boxes should be able to take full power (800-900W) and deliver around 130 dB. So in theory one of your mid boxes should be able to keep up with all four HF horns. The second box provides a little bit more headroom.... |
|||
Post Reply | Page <12 |
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 |