SEAS metal dome tweeter info needed - 27TBC/G & 27TBFC/G - diyAudio
Go Back   Home > Forums > Loudspeakers > Multi-Way

Multi-Way Conventional loudspeakers with crossovers

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 2nd November 2006, 06:59 PM   #1
diyAudio Member
 
Join Date: Mar 2004
Location: Everett, WA
Send a message via Yahoo to RetroAudio
Default SEAS metal dome tweeter info needed - 27TBC/G & 27TBFC/G

Hey, I got a question about the SEAS 27TBC/G (w/o FF) and 27TBFC/G (W/FF) aluminum dome tweeters. I looked on Z 's tweeter site and got some good info about the 27TBFC/G and wondered if anyone has compared the 27TBC/G to it, either just with listening and/or measurement. They're both designed for resonance control and built the same (maybe), but one just has the FF added. I notice the 27TBC/G (w/o FF) does not have that 26khz peak which interests me, as well as the fact that I'm inclined to believe that all things being equal, drivers without FF sound better. Ok, I don't want any intense arguing here, just wondered if anyone had any experience with the non-FF unit. I did do a search but didn't find what I wanted, although I did get some really good stuff that helped get me to this point.
  Reply With Quote
Old 2nd November 2006, 07:08 PM   #2
v-bro is offline v-bro  Netherlands
diyAudio Member
 
v-bro's Avatar
 
Join Date: May 2006
FF stands for "ferrofluid"...
__________________
Max. cone displacement can be several foot on any speaker!Too bad it can be done only once......
  Reply With Quote
Old 2nd November 2006, 07:23 PM   #3
v-bro is offline v-bro  Netherlands
diyAudio Member
 
v-bro's Avatar
 
Join Date: May 2006
When ferrofluid was first introduced every brand rushed into using it. Tweeters with dome construction were never capable of handling as much power as with the fluid. At a certain point many tweeters were not even available anymore without ferrofluid.

Seas however was the first large manufacturer to produce them without the fluid again. Testing over extended periods of time the FF models showed less detail and efficiency. The dome's without the fluid tend to sound better for a longer period of time and are nowadays better in power capability due to modern construction. (allowing more dome-displacement and better cooling through openings or VC carrier/dome material/treatment).

A metal-dome tends to cool very well... though I personally find soft/silk-domes more pleasant to my ears...
__________________
Max. cone displacement can be several foot on any speaker!Too bad it can be done only once......
  Reply With Quote
Old 2nd November 2006, 08:27 PM   #4
diyAudio Member
 
sdclc126's Avatar
 
Join Date: Jan 2005
Location: San Diego, CA
The 26khz peak is inaudible and therefore irrelevant.

I haven't heard either unit but am planning on building Zaph's BAMTM. I'm erring on the side of caution knowing that the 27TBFCG is the overall winner at any price (of all he tested).

There may be no audible differences between the two, and you probably won't go wrong either way.
__________________
Soft Dome
  Reply With Quote
Old 3rd November 2006, 03:30 AM   #5
diyAudio Member
 
Join Date: Dec 2003
Location: austin, tx
I had the same questions. Just an FYI, the latest datasheet from Seas shows the 27TBC/G does have the peak 27TBC/G.
  Reply With Quote
Old 3rd November 2006, 05:54 PM   #6
diyAudio Member
 
Join Date: Nov 2005
Location: Boston
"Just an FYI, the latest datasheet from Seas shows the 27TBC/G does have the peak"

I guess that's unfortunate if you have a dog.
  Reply With Quote
Old 3rd November 2006, 06:09 PM   #7
v-bro is offline v-bro  Netherlands
diyAudio Member
 
v-bro's Avatar
 
Join Date: May 2006
Especially if it's a "purist dog"...

"no audible difference" I think applies here.....
__________________
Max. cone displacement can be several foot on any speaker!Too bad it can be done only once......
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Metal dome should always go with metal cone? Is this a rule? Jay_WJ Multi-Way 5 5th February 2007 06:53 PM
How to cut the chassis of Seas 27TBFC/G tweeter ? heater Multi-Way 4 5th April 2006 12:35 PM
Wanted: SEAS H211 1" dome tweeter or close substitute GordonW Swap Meet 0 2nd November 2005 05:13 PM
seas TWEETER 25 TAFN/G NEEDED Thomas Giz Swap Meet 2 20th October 2005 06:03 PM
SEAS soft dome tweeter sound very very clear jinkuchi Multi-Way 2 21st March 2005 06:21 PM


New To Site? Need Help?

All times are GMT. The time now is 05:13 AM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2