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Multi-Way Conventional loudspeakers with crossovers

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Old 6th August 2008, 08:00 AM   #4351
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Default HF Mounting Frame


Also found this picture over at the Audio Voice Acoustics site, with an excellent idea for a simple metal frame to mount the mid/high horn and ribbon supertweeter. (A C-shaped section in the middle for the mid/high horn and the top of the platform for the supertweeter.)
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Old 6th August 2008, 09:45 AM   #4352
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Credit to Barrosi for the wonderful pictures he took of his own system and others at the Frickelfest 2008. Looks beautiful! Inspiring work!
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Old 6th August 2008, 05:03 PM   #4353
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Hi Robert,

I put up a post on my forum regarding your project. Didn't want to hijack Lynn's thread any more.

http://www.aespeakers.com/phpbb2/vie...php?f=1&t=1688

Feel free to comment. I think this option would be much superior to any single 18" that is available or could be made available. The 2 Dipole15's displace over 4L of air compared to about 1.5L for even the best of 18's currently available.

John
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Old 6th August 2008, 06:09 PM   #4354
mige0 is offline mige0  Austria
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Hi Robert

have a look at John Kreskovsky's tech paper about the topic of power matching between mid and bass.

http://www.musicanddesign.com/PowerMatching.html


Bottom line - using a (mid-)bass L-shaped OB with one speaker firing to the side may look ugly at a first glance but may also sound superior to anything else.


I my own approach realising a high efficiency / high output / all OB design, my first experiments with that arrangement turned out very promising.
My mid-bass OB right now is (basically) around half a meter by half a meter and a 90 degree wing with half a meter for the second speaker.


Goal is a roughly 120 dB / 1m at extreme low IM up from 100Hz intended and usable also as mid/ far field monitor.


Current ingredients are a PRO AMT in true dipole configuration (which will undergo some additional modifications as soon as time allowes) - two PRO 6,5" (power/ excursion split operated) - two ultra low Rms PRO 15" (also power/ excursion split operated).


-----------

Lynn, good to see your project developing. Congratulations for jumping the 4000.

Regarding structure of OB speakers I realy wonder why "flying" isn't more popular .





Greetings
Michael
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Old 6th August 2008, 06:18 PM   #4355
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Quote:
Originally posted by mige0

Current ingredients are a PRO AMT in true dipole configuration (which will undergo some additional modifications as soon as time allowes) - two PRO 6,5" (power/ excursion split operated) - two ultra low Rms PRO 15" (also power/ excursion split operated).
Can you say what you are using?

Beyma tweeter
PHL or other mid
and which bass driver?

Thank you,

Chris
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Old 6th August 2008, 07:28 PM   #4356
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little bit of "auto cad"
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Old 6th August 2008, 07:51 PM   #4357
agent.5 is offline agent.5  United States
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Lynn,

Where are you going to place your RAAL?

Any update on AH-425?


Canius,

I think RAAL needs to be placed on the same vertical axis of the AH-425 and not next to it.

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Old 6th August 2008, 08:51 PM   #4358
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agent.5,
Tomorrow I will try to make much precise project with raal on top.
I dont know how many inch must be between edge of horn to center of raal...


Best
Caninus
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Old 6th August 2008, 08:52 PM   #4359
agent.5 is offline agent.5  United States
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Quote:
Originally posted by caninus80
[B]agent.5,
Tomorrow I will try to make much precise project with raal on top.
I dont know how many inch must be between edge of horn to center of raal...

I don't know either. Maybe someone that have used RAAL can tell us.
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Old 6th August 2008, 09:03 PM   #4360
agent.5 is offline agent.5  United States
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Default Re: HF Mounting Frame

Quote:
with an excellent idea for a simple metal frame to mount the mid/high horn and ribbon supertweeter.
The easiest metal framing is to use 80/20 aluminum extrustions, assuming you want simple shape and not fancy design and curves.

Prices are good at their Ebay store.

http://stores.ebay.com/8020-Inc-Gara...QQftidZ2QQtZkm
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