Meadowlark Blue Heron - lots of questions - Page 3

nigeljking · 20th July 2006, 10:51 PM

After reading about the Audax tweeters I did some general web searching. One of the reasons cited for a lack of treble with these tweeters is a tendency to leak nitrogen in early examples which causes the output to diminish. Perhaps this is a reason for the low treble output?

Nigel

pinkmouse · 20th July 2006, 10:56 PM

Quote:

Originally posted by nigeljking
...a tendency to leak nitrogen in early examples...

Interesting. Any links?

nigeljking · 21st July 2006, 03:36 AM

Quote:

Originally posted by pinkmouse

Interesting. Any links?

This is a sample from a google cache
http://72.14.235.104/search?q=cache:...n&ct=clnk&cd=3

I just did a search on 'audax hd-3p' which turned up a reasonable number of links. I had never heard of this technology before.

Nigel

Salas · 21st July 2006, 08:47 PM

I have made a substitution of Audax 'golden egg' tweeters in a big Meadowlark (dont remember the type its 2 yrs ago, but it had 2x10'' woofs, TL, plus additional low mid- high mid -high very heavy cab). It used probably custom woofs with huge magnets, Scanspeak low mid, HM100Z0, and HD3P. The piezos had lost pressure. The cross was 7khz 1st order as I recall measuring it. When they lose pressure they lose dBs. A friend of mine also had 4 same piezos in storage and found them like that after 5 yrs. He got angry.
I used Audax A26 tweet that had strong last octave and was 100mm overall diam so it could fit snugly. Had to measure and listen a lot but the owner got very happy. He mentioned it was a circa 20K$ speaker he bought second hand in the U.S. It had Auricaps and Caddocks in its crossover. I used Auricap for the substitution cross section again.

Salas · 21st July 2006, 09:37 PM

Found em on the web. It was the Nightingale model actually.

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Fs: Meadowlark Blue Heron, Original Pair, Maple Finish, Very Nice	Intelonetwo	Swap Meet	0	6th December 2008 12:47 AM
SV811-3 SE : Lots of questions...	Paracelsus	Tubes / Valves	11	14th April 2004 11:40 PM
lots of questions	navin	Multi-Way	62	8th September 2002 07:29 PM
Lots of Questions	jteef	Solid State	4	24th September 2001 10:04 PM

New To Site?	Need Help?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read


	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

20th July 2006, 10:51 PM	#21
nigeljking diyAudio Member Join Date: Jan 2006 Location: Sydney	After reading about the Audax tweeters I did some general web searching. One of the reasons cited for a lack of treble with these tweeters is a tendency to leak nitrogen in early examples which causes the output to diminish. Perhaps this is a reason for the low treble output? Nigel

21st July 2006, 08:47 PM	#24
Salas diyAudio Chief Moderator Join Date: Oct 2002 Location: Athens-Greece	I have made a substitution of Audax 'golden egg' tweeters in a big Meadowlark (dont remember the type its 2 yrs ago, but it had 2x10'' woofs, TL, plus additional low mid- high mid -high very heavy cab). It used probably custom woofs with huge magnets, Scanspeak low mid, HM100Z0, and HD3P. The piezos had lost pressure. The cross was 7khz 1st order as I recall measuring it. When they lose pressure they lose dBs. A friend of mine also had 4 same piezos in storage and found them like that after 5 yrs. He got angry. I used Audax A26 tweet that had strong last octave and was 100mm overall diam so it could fit snugly. Had to measure and listen a lot but the owner got very happy. He mentioned it was a circa 20K$ speaker he bought second hand in the U.S. It had Auricaps and Caddocks in its crossover. I used Auricap for the substitution cross section again.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)