Philips AD3800 in nice boxes, what are these? - Page 2

Scottmoose · 28th August 2008, 03:29 PM

Welcome to planet insanity...

These 8ft Voigt pipes were using the 800ohm version. Not that I'm advocating the trad. type of VP. But interesting.

TexWiller · 5th October 2009, 04:36 AM

Hallo,
a question for markanica it is possible to know number and dimension of the holes in the rear of the loudspeaker??
I am building boxes but I do not know the Thiele parameters for AD3800 so the original box could be a good starting point.
Thanks

pjanda1 · 5th October 2009, 03:52 PM

Wow, this is a blast from the past. I know the question wasn't for me, but the original box is NOT a good starting point: giant midbass hump, no lower bass. Truly Terrible. Besides, it's quite likely that the suspension is a little stiff and the magnet has lost some flux. Were I you, I'd either put it in an open baffle, or build a 50ish liter sealed box and stuff to suit. I've still got the boxes. If you really want to know, I can pull the back off of one and measure the port. I can't overstate how strongly I suggest trying something else though.

Paul
www.wildburroaudio.com

markanica · 5th October 2009, 04:56 PM

Quote:

Originally Posted by pjanda1

giant midbass hump, no lower bass.

I agree with the above.
It's not so clear what the original designer had in mind with these...Maybe they fitted the small pentode tube amps of that time
If you want to put those matured speakers in a box than maybe it is good to measure the real TS-parameters as they are now.
Those old paper cones can be a real treat to the ears.
It is worth to try, me thinks..

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 Alnico Philips AD3800M AD3800AM and Philips transformers	guglielmope	Swap Meet	8	10th January 2011 11:28 AM
philips cd 880 philips cd880 service manual	0519	Digital Source	4	28th August 2008 11:43 AM
Philips AD3800 (Alnico 8" fullrangers) $25/pr	pjanda1	Swap Meet	3	24th January 2008 01:42 PM
Looking for nice boxes.	Peter Daniel	Parts	11	21st September 2003 06:50 AM

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

5th October 2009, 04:36 AM	#12
TexWiller diyAudio Member Join Date: Sep 2004 Location: Italy	Hallo, a question for markanica it is possible to know number and dimension of the holes in the rear of the loudspeaker?? I am building boxes but I do not know the Thiele parameters for AD3800 so the original box could be a good starting point. Thanks

5th October 2009, 03:52 PM	#13
pjanda1 diyAudio Member Join Date: Jan 2005 Location: Boulder, CO	Wow, this is a blast from the past. I know the question wasn't for me, but the original box is NOT a good starting point: giant midbass hump, no lower bass. Truly Terrible. Besides, it's quite likely that the suspension is a little stiff and the magnet has lost some flux. Were I you, I'd either put it in an open baffle, or build a 50ish liter sealed box and stuff to suit. I've still got the boxes. If you really want to know, I can pull the back off of one and measure the port. I can't overstate how strongly I suggest trying something else though. Paul www.wildburroaudio.com