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Multi-Way Conventional loudspeakers with crossovers

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Old 22nd November 2010, 09:53 PM   #311
mige0 is offline mige0  Austria
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Quote:
Originally Posted by c2cthomas View Post
I was looking at the SB Acoustics line as well and like the looks of this one.

SB Acoustics SB29RDCN-C000-4 Neo Magnet, Ring Dome
https://www.madisound.com/store/prod...oducts_id=8664

Fs - 580hz
94 db @ 2.85v
will handle 100 watts
$47 USD
Yeah not bad - but displacement volume is what *really* counts here.
Search for this tweeter in this thread and you will see.

Michael
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Old 22nd November 2010, 10:42 PM   #312
ScottG is offline ScottG  United States
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Originally Posted by mige0 View Post
and price ???
..more than double, but still quite a bit less than the Scan Speak (and with wider dispersion in the two top octaves).

There are also the tweeters from fostex that were designed specifically for first order electrical use (FT28D and FT48D). No xmax listing though.
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Old 23rd November 2010, 04:28 AM   #313
mige0 is offline mige0  Austria
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Originally Posted by ScottG View Post
..more than double, but still quite a bit less than the Scan Speak (and with wider dispersion in the two top octaves).

There are also the tweeters from fostex that were designed specifically for first order electrical use (FT28D and FT48D). No xmax listing though.
Ahh -on quick research I found Hiquaphons selling for EUR 200 - 250,- in Europe,
- LSV Dieter Achenbach

whereas the SB25STC sells for < $ 30.- a piece at Madisound.

For this low price of the SB25STC one may even consider a stacked tweeter arrangement in putting them in series - bypassing one with a capacitor to let them work together only in the XO region and slightly above.

Michael
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Old 7th December 2010, 05:42 PM   #314
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I found this tweeter/mid: HiVi TM1A

http://www.partsexpress.com/PDF/297-410.pdf

This does not really go with the KISS approach, but it could if it can handle a simple filter....?

This should have the qualities we have been looking for; large radiating area, low enough xo point and very low price. I even think there is an open back version.
Dont know about distortion figures though....
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Old 7th December 2010, 10:21 PM   #315
Pano is offline Pano  United States
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Interesting driver combo! I wonder if they still make it?

With HiVi/Swans it's hard to know - some of their stuff is very good, some pretty bad. No idea about this one, but it's a fun looking combo. Thanks for the link.
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Old 8th December 2010, 09:23 AM   #316
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Quote:
Originally Posted by mige0 View Post
Ahh -on quick research I found Hiquaphons selling for EUR 200 - 250,- in Europe,
- LSV Dieter Achenbach

Michael
are based on scanspeak d2010/2008 and cannot go too low
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Old 11th December 2010, 01:30 PM   #317
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Great project, thanks for sharing
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Old 12th December 2010, 11:25 AM   #318
Telrab is offline Telrab  Netherlands
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This looks like a nice project! Can anybody tell me if my listeningroom (6 x 4 meters) is big enough for this speaker?

Greetings,
Bartel
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Old 12th December 2010, 12:28 PM   #319
Pano is offline Pano  United States
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6x4? Yes, that is plenty big enough. No problem at all.
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Old 12th December 2010, 03:19 PM   #320
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As per Pano's reply, your room size is fine. One important issue is distance from the front of the baffle to the rear wall. 1 meter to 1.2 meters is typical. This usually provides the best tonal balance and image - sound stage. Naturally, every room has it's own sonic qualities, and some speaker placement experimentation is required. Moderate toe in can also help with image depth and width. Please let us know what ends up working best for you.
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