My dipoles are finally finished. - diyAudio
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Old 24th June 2003, 01:47 AM   #1
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Default My dipoles are finally finished.

After stuffing around for months I've finally decided to call my dipoles finished. I may get a professional to do fancy side panels, but for now that's it.

Thanks to all for advice and help.

The latest iteration is here:

http://www.doddsy.net/steve6_014.htm


Cheers

Steve
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Old 24th June 2003, 01:59 AM   #2
7V is offline 7V  United Kingdom
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They look really interesting Steve. Many congratulations. Fancy side panels might be nice but we're here first and foremost for the sound.

So, how do they sound? Did your Theory work - have you stopped the top from vibrating?

Have you listened extensively to Dipoles before and how would you characterize the main differences to conventional designs?

Steve
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Old 24th June 2003, 03:43 AM   #3
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I used to own Martin Logan CLS, and also Genesis V speakers which are dipoles, and I've heard the Audio Artistry Beethovens so I know and like dipole sound.

I'm biased, but I think these sound better than any of those except maybe the Beethovens.

I like the airiness and naturalness of a good dipole, and dipole bass can't be beat.

As for the vibrations, yes, there is much less. The old bafflaes would rock and flex, partly due to the thin side pillars. These don't. If it doesn't sound better I will convince myself that it does.

Cheers

Steve
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Old 24th June 2003, 04:05 AM   #4
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Nice OB's. They look much better then mine.
Nice writing style, too.
Dave
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Old 24th June 2003, 05:23 AM   #5
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good Job mate...your doing it...thats the way we all learn!!!

DIRT®
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Old 24th June 2003, 09:39 AM   #6
taufern is offline taufern  United States
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congrats indeed steve-o...because of you and chops i have officially gone head first into my dipole project...although i took a slightly different route for the subs, my project will be quite similar in some aspects...so here is what i am down to...
essentially a sub playing from 100 or 90hz and below...they are these models from parts express...


i just received them two days ago (4 of them) and i am already ready to get startedhttp://www.partsexpress.com/pe/showd..._ID=7573&DID=7

mids are undecided...i cannot stop thinking about this guys and i hope you can maybe help me out...ive narrowed it down to these drivers

ss 18s/8535
accuton c92-6
ss 18w/4531g
phl 1220 or 1340

any suggestions on this are greatly appreciated...they are needed to play from 90 or 100 hz to about 1500-1700 hz...i will fiddle with crossovers when the driverack gets here...

tweeter will be ss 9500...i am so pleased with this tweeter that i couldnt ask for anything else for this price range...which mid would integrate best with these

processor is driverack pa...i just bought one last week and it is in the mail so equalization shouldnt be a big task for low q drivers

amps will be audiosource units...i figure 3 of the model ones for now will get me by...any other alternatives in this price range will be greatly appreciated... if we need to start another post i can do that...let me know what you guys think
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Old 24th June 2003, 10:14 AM   #7
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Thanks for the nice words.

I'm not familiar personally with any of the midranges, although they all have fine reputations.

The question would be how suitable any of them are when used as dipole down to 100Hz or so. The problem is the size and xmax limiting the amount of volume once you apply dipole EQ.

I would think from my experience that one a side would not be enough and two still marginal.

That's why Linkwitz recommend 8 inch drivers and I doubled up mine. So I'd suggest the 8 inch variants of the above drivers, the Seas W22, or the HiVi M8a.

Good luck

Steve
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Old 24th June 2003, 11:45 AM   #8
Gregm is offline Gregm  Europe
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Well, dipoles start to have a following...

Quote:
mids are undecided...i cannot stop thinking about this guys and i hope you can maybe help me out...ive narrowed it down to these drivers
Good luck mating the accuton with the 9500 ! ! Would be keenly interested in the crossover "fiddling" you promised .

Why not consider an ATC 75-150 dome mid?

I'm looking into a project (project 10 ) featuring this & a 234 for mids, & a raven OR visaton tweet. Subwoof separate, a la Linkwitz / Steve / and you.

Will post about this when I get my act together (and my funds in order )... a number of things are bugging me, not least being the vibrational aspect of hanging ~55pds of drivers on an open baffle...
Not to mention the subwoof of at least 80 l pulsating to the tunes of another 50-60pds 15" driver...
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Old 27th June 2003, 05:19 PM   #9
Phear is offline Phear  Sweden
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Hey nice work!
Once you tried open baffles you don´t go back to boxes. -One of the ten DIY-commandments. I to am a bit "Linkwitzified". I'm currently going för the Phoenix approach with separate subs & high/mid. I'm still in the prototype stage...

A pic:
Click the image to open in full size.

I'm using Scan-speak 9300 tweters, Vifa XT18WH09 6,5"mids (gonna buy 2 more tho) & MDS Fanatic 12" carwoofers.

cheers
/Per
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Old 27th June 2003, 06:58 PM   #10
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Default Re: My dipoles are finally finished.

Quote:
Originally posted by sfdoddsy
After stuffing around for months I've finally decided to call my dipoles finished. I may get a professional to do fancy side panels, but for now that's it.

Thanks to all for advice and help.

The latest iteration is here:

http://www.doddsy.net/steve6_014.htm


Cheers

Steve

Good job!
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