Kef B1814

jerryo · 4th May 2009, 04:21 PM

Hi, has anyone out there have any experiences of the Kef B1814 bass driver. This is an 18" x 12" rectangular driver along the lines of the B139 in construction.
I have found very little on the web apart from the Thiele & Small parameters from some guy in Italy! The specs read like they could make good open baffle sub's with a <20Hz resonance and a Qts of 1.2 and they are really big so will move quite abit of air.
Many thanks.

Flaesh · 05:37 PM

Quote:

Originally Posted by jerryo

..
I have found very little on the web apart from the Thiele & Small parameters from some guy in Italy! .. <20Hz resonance and a Qts of 1.2 ..

and others t.s.p. - ....?

I had found nothing..

chris661 · 11th January 2010, 06:33 PM

Some kind of woofer tester would confirm this. Apart from that, give it a go - there's no point in DIY if you're not going out there, trying new things.

planet10 · 11th January 2010, 07:06 PM

That is a completwely new driver to me, when did they make that? Pictures?

dave

Charles Darwin · 11th January 2010, 07:36 PM

http://telefunken.te.funpic.de/jahrb...EF%20B1814.jpg

From what I can gather it preceded the B139 and was made from '61 or so to about the early '70s (there's a guy here in the UK who sells a pair of KEF speakers made in 1970 using this driver).

Flaesh · 11th January 2010, 07:50 PM

one man in NY have 4 or 6 B1814 .. but using conventional speakers ..

planet10 · 11th January 2010, 08:09 PM

Thanx for the pic. That is a monster.

dave

Charles Darwin · 11th January 2010, 08:46 PM

You're welcome!
We aim to please.

jerryo · 12th January 2010, 07:55 AM

This driver was on ebay and I nearly went for it; I wish I had now as they are very rare. I have not seen another pair on ebay!
It would be nice to find out a bit more about this driver and what happened to them. I don't suppose the production run was large judging by how rare they are.
Is anyone from KEF out there watching this forum?

DAMIC · 13th January 2010, 05:48 AM

more info:

SpeakerTalk :: View topic - KEF B1814

4th May 2009, 04:21 PM	#1
jerryo diyAudio Member Join Date: Jun 2007	Kef B1814 Hi, has anyone out there have any experiences of the Kef B1814 bass driver. This is an 18" x 12" rectangular driver along the lines of the B139 in construction. I have found very little on the web apart from the Thiele & Small parameters from some guy in Italy! The specs read like they could make good open baffle sub's with a <20Hz resonance and a Qts of 1.2 and they are really big so will move quite abit of air. Many thanks.

11th January 2010, 06:33 PM	#3
chris661 diyAudio Member Join Date: Feb 2008 Location: Lancashire Blog Entries: 7	Some kind of woofer tester would confirm this. Apart from that, give it a go - there's no point in DIY if you're not going out there, trying new things. __________________ "Throwing parts at a failure is like throwing sponges at a rainstorm." - Enzo My setup: http://www.diyaudio.com/forums/multi...tang-band.html

11th January 2010, 07:06 PM	#4
planet10 frugal-phile(tm) diyAudio Moderator Join Date: Oct 2001 Location: Victoria, BC, NA, Sol III Blog Entries: 4	That is a completwely new driver to me, when did they make that? Pictures? dave __________________ community sites t-linespeakers.org, frugal-horn.com ........ commercial site planet10-HiFi p10-hifi forum here at diyA

11th January 2010, 07:50 PM	#6
Flaesh diyAudio Member Join Date: Dec 2009 Location: Eburg	one man in NY have 4 or 6 B1814 .. but using conventional speakers .. __________________ flesh flash flush

11th January 2010, 08:09 PM	#7
planet10 frugal-phile(tm) diyAudio Moderator Join Date: Oct 2001 Location: Victoria, BC, NA, Sol III Blog Entries: 4	Thanx for the pic. That is a monster. dave __________________ community sites t-linespeakers.org, frugal-horn.com ........ commercial site planet10-HiFi p10-hifi forum here at diyA


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11th January 2010, 07:36 PM	#5
Charles Darwin diyAudio Member Join Date: Nov 2009 Location: Birmingham, UK	http://telefunken.te.funpic.de/jahrb...EF%20B1814.jpg From what I can gather it preceded the B139 and was made from '61 or so to about the early '70s (there's a guy here in the UK who sells a pair of KEF speakers made in 1970 using this driver).

11th January 2010, 08:46 PM	#8
Charles Darwin diyAudio Member Join Date: Nov 2009 Location: Birmingham, UK	You're welcome! We aim to please.

12th January 2010, 07:55 AM	#9
jerryo diyAudio Member Join Date: Jun 2007	This driver was on ebay and I nearly went for it; I wish I had now as they are very rare. I have not seen another pair on ebay! It would be nice to find out a bit more about this driver and what happened to them. I don't suppose the production run was large judging by how rare they are. Is anyone from KEF out there watching this forum?

13th January 2010, 05:48 AM	#10
DAMIC diyAudio Member Join Date: Jan 2006 Location: Beograd	more info: SpeakerTalk :: View topic - KEF B1814

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