Hi!
Iīve bought various JBL 2213 woofers.
1st pair is reconed 2213H with the ferrite magnet.
One driver is producing a "tick, tick, tick..." noise at excursion above +-2mm.
DCR and Qts are different to the other one... So I have to get rid of them...
2nd pair is 2213 with AlNiCo magnet taken from an original pair 4311WX (factory painted black cabinet?!?)
The drivers seem not reconed. They have a different basket with slim bars.
The yoke vents have got many small slits producing turbulence noise.
The impedance curves are very similar, but Fs is more than 25% varying. American workmanship?
3rd pair consits of a 2213 and 123A-3. They both have AlNiCo magnets with identical broad bar basket like the 1st pair.
I red somewhere that 123A and 2213 are comparable. No way! All parameters are different, even the rise of impedance towards high frequencies.
Can I find deeply detailed documentation about the 2213 and 123A versions somewhere???
Thanks and best regards,
Andreas