I've had a pair of Celestion UL6s for over 30 years.
Recently, through misuse, a woofer died.

I'm certain the woofers aren't available anymore, so I want to replace both woofers as a pair. Problem is I need to know the T/S parameters of the original woofers so that I can pick a suitable replacement that will hopefully give me a reasonable sound.

I've removed the blown driver, but there is no model number - just what appears to be quickly stamped, difficult to read numbers JJ20 and T2354.

Can anyone shed any light on what the true model number is for these drivers, and, more importantly, what their T/S parameteres would be?

Did you tried ebay?

Have you tried to contact the manufacturer? Maybe they have a support staff.

http://www.celestion.com/

Hi
Been away a couple of days.
Haven't tried Ebay. I'll have a look.

Have emailed Celestion UK several times over the last couple of weeks and have not received a response of any mind.
On Monday I thought I'd have better luck emailing their US branch.
Those emails bounced back.

I used to be able to do my own tests on drivers to find their basic T/S properties.
It's a pain in the a--e, but maybe that's what I'll have to do.

Thanks guys.