Best 105mm Tweeter SB SB29RDC, SEAS 27TBFCG, Dayton RS28A4, etc - diyAudio
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Old 15th December 2014, 11:23 PM   #1
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Default Best 105mm Tweeter SB SB29RDC, SEAS 27TBFCG, Dayton RS28A4, etc

Hi guys! One of the speaker designs I've built in the past (1996), see pic attached, is still in use today and I'm wanting to get some feedback on whether tweeter technology has come far enough over the last 20 years to warrant an upgrade.

The speakers have the original Scan-Speak D2905/9300 tweeters still installed. (datasheet)

(The other drivers in case you are curious are the Scan Speak 18W 8543 poly mid woofers, also vintage. These can't be changed out as this is an isobaric design and the inner drivers are sealed inside.)

The crossover is in an external case so no problem redoing it.

So, some of the options that would work in place of the Scan-Speak D2905/9300's without redoing the cabinet much would be:

SB Acoustics SB29RDC-C000-4

SEAS Prestige 27TBFC/G (H1212)

Dayton Audio RS28A-4

Worth changing out? Opinions on best 105mm tweeter?

Happy holidays guys.

Ben
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Old 16th December 2014, 12:03 AM   #2
Jay1111 is offline Jay1111  United States
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Compared to the SS 9500 the SB29 has better distortion performance especially at 2khz, and it has a decent sensitivity advantage. It would allow a much lower crossover point. All of the tweeters mentioned have been crossed below 2khz in multiple designs.

Noticeably sound better? One way to find out.
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Old 16th December 2014, 02:43 AM   #3
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So, one vote for SB29, thank you Jay.

Anyone compared SB29 with Dayton RS28A? Listening impressions?
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Old 16th December 2014, 04:16 AM   #4
navin is offline navin  India
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Quote:
Originally Posted by Ben_Tech View Post
Hi guys! One of the speaker designs I've built in the past (1996), see pic attached, is still in use today and I'm wanting to get some feedback on whether tweeter technology has come far enough over the last 20 years to warrant an upgrade.
Have you considered or are you considering ribbons?
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Old 16th December 2014, 06:07 AM   #5
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Maybe a Satori tweeter, looks like it has the same flange as the SB29.
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Old 16th December 2014, 08:00 AM   #6
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Originally Posted by navin View Post
Have you considered or are you considering ribbons?
Yes sir, but the flange would have to be round 105mm.
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Old 16th December 2014, 08:01 AM   #7
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Originally Posted by Mario Pankov View Post
Maybe a Satori tweeter, looks like it has the same flange as the SB29.
Worth the price at all over the SB29 though?
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Old 16th December 2014, 08:48 AM   #8
Lojzek is offline Lojzek  Croatia
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There is no point in exchanging the tweeter in your case.
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Old 16th December 2014, 08:58 AM   #9
navin is offline navin  India
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Aurum Cantus G2si, Fountek Neo CD 3.0, Morel Elite 338, and the Audax 25A28 "Gold Dome" would be my short list with the 338 being on the top of that list as it has a 104mm flange and would fit exactly.
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Old 16th December 2014, 08:58 AM   #10
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There is no point in exchanging the tweeter in your case.
Can you elaborate? I promise to not be insulted, I'm just interested to hear your thoughts -- thanks.
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