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Multi-Way Conventional loudspeakers with crossovers

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Old 27th April 2013, 10:30 AM   #2311
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Talking Good times in Bergen

Hi Rojoh,

I think that was the Finale system in Bergen..
Quite a journey and eventfulll trip.
Two days driving and boat trip to get there at 1am, then a 2 day installation.
Then an 8 hour beer and music party...You guys in Norway know how to drink...and I am Scottish!

All in all a good time was had by everyone.

Cheers
Derek.
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Old 28th April 2013, 08:39 PM   #2312
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looks you did some nice work using MSW there
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Old 29th April 2013, 10:39 PM   #2313
nhuwar is offline nhuwar  United States
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Default JBL Basshorn build

Figured Id post a pic of my newest project. Its actually my first pair of horns Ive ever built. To be honest its my first pair of speakers built period.

Ive said they are 4520 copies but Ive found this to be in error. There actually c550. There not exact copies as they aren't as deep as the jbl's and there taller by a few inches. They have dayton pa380-8 15" pro audio woofers from parts express. They were cheap but Im quite happy with them. They have a low qts and a high bl factor so there happy being horn loaded.

They also roll off higher then the jbl 2205's. The horn seems to roll off at 200hz instead of 150hz for the 2205's. There acting as direct radiator there on up to 800hz. Then I have jbl 2" compression drivers taking over. There 245's with 375 diaphragms in them. The horns are jbl 2380 copies made by gold wood. There pretty cheap but I think they sound pretty good. At the moment I have 1" compression drivers working above the 2" drivers. There p audio drivers but I don't recall the model. There titanium so there not perfect. But I had them so I thought what could it hurt.

Im going to replace them with something better soon. Ive been eyeing a pair of celestion cdx1-1430's to replace them. Or Ill get a pair of jbl 2425's.

The 1" horns are a pair of elliptical horns from parts express too. Im in the process of building the crossovers. They will be linkwitz second order crossovers.

Im now in the process of starting a subwoofer build to cover were the horns drop off. The dayton woofers start to roll off at 50hz and that doesn't change with them in the horns. Im going to use a jbl 2245h in a bandpass cabinet to handle from 50 down.

Its all still a work in progress. But its coming along. I know back horns are plagued with phase issues. But I am happy with them at the moment. But Im sure I will build some other bass horns to replace them some day. I enjoyed building them too much to stop building with them.


Whats driving them is nothing special at the moment. Emotiva amp and a outlaw preamp. Ya its an HT pre, but at the moment I dont have other options, LOL.


Nick

P.S. Sorry for the cellphone pic's. Too damn convenient, LOL. Ill try and take some more with a better camera and post if anyone is interested.
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Old 29th April 2013, 10:55 PM   #2314
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nhuwar: the speakers look very good. I would imaging you can get a far amount of volume out of them with the right amp.
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Old 30th April 2013, 12:40 AM   #2315
nhuwar is offline nhuwar  United States
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Quote:
Originally Posted by mhouston View Post
nhuwar: the speakers look very good. I would imaging you can get a far amount of volume out of them with the right amp.

They can get up to around 110 db. The amp clips a little above that. If I'm feeding it a test tone it seems to go to around 120db. But that was in my garage. But that way past my level. I'm happy around 80 db. I imagine its not to much juice either. But they definitely shake the WHOLE house. Around 90 db I start hearing all these crazy noises coming from light fixture and the walls. If its low frequency that is.


They are fun though.

Nick
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Old 30th April 2013, 08:31 AM   #2316
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Quote:
Originally Posted by nhuwar View Post
They can get up to around 110 db. The amp clips a little above that. If I'm feeding it a test tone it seems to go to around 120db. But that was in my garage. But that way past my level. I'm happy around 80 db. I imagine its not to much juice either. But they definitely shake the WHOLE house. Around 90 db I start hearing all these crazy noises coming from light fixture and the walls. If its low frequency that is.


They are fun though.

Nick
110db? Crazy!
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Old 30th April 2013, 01:10 PM   #2317
nhuwar is offline nhuwar  United States
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Quote:
Originally Posted by mhouston View Post
110db? Crazy!
Ya, its pretty darn loud. Too loud for my taste. But its nice to know what it can do. The drivers have a power rating of 350 I think. Can even imagine. But they are pro sound driver though.


Nick
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Old 30th April 2013, 02:13 PM   #2318
KVP is offline KVP  Belgium
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Do I see Emotiva gear ?
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Old 3rd May 2013, 12:57 AM   #2319
nhuwar is offline nhuwar  United States
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Yep. Amp and cd player. I'm a big fan. I plan on buying the stereo preamp soon.

Sent from my Garminfone using Tapatalk
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Old 4th May 2013, 03:42 AM   #2320
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Newbie here

Like to contribute my work too
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