Woofer 2213 H positive or negative transducer ?

[imai]

please i would like to know if the 2213H woofer jbl is positive or negative transducer...
very thanks in advance
luigi

[jbl4ever]

Positive

[jbl4ever]

Info here
https://www.yumpu.com/en/document/vi...ntions-of-jbl-

[edgewound]

Info here
https://www.yumpu.com/en/document/vi...ntions-of-jbl-

The 2213H is not mentioned in the Tech Note.

[imai]

I finally ascertained that the woofer 123a-1 and positive transducer
and the 2213h and a negative transducer.
I ask you having foolishly replaced the 2213h with the 123a-1 in my 4312 first series (with original crossower
)What should I do ? reverse the wires behind the 123a-1?
to have a right crossover ?

thanks for the help luigi

[Mr. Widget]

I finally ascertained that the woofer 123a-1 and positive transducer
and the 2213h and a negative transducer.
I ask you having foolishly replaced the 2213h with the 123a-1 in my 4312 first series (with original crossower
)What should I do ? reverse the wires behind the 123a-1?
to have a right crossover ?

thanks for the help luigi

If the only difference between the two woofers is the polarity, no big deal. Just reverse the wires at the woofer.


Widget

[edgewound]

I finally ascertained that the woofer 123a-1 and positive transducer
and the 2213h and a negative transducer.
I ask you having foolishly replaced the 2213h with the 123a-1 in my 4312 first series (with original crossower
)What should I do ? reverse the wires behind the 123a-1?
to have a right crossover ?

thanks for the help luigi

Yes...Just reverse the wires.

That said...the 2213H, if in good working order...is a superior woofer to the 123A-1/2212. If someone told you otherwise, you were lied to. The ONLY thing that might make the 123A-1 "more valuable" is the AlNiCo magnet, which is also removable from the frame, and which carries a mystique that ceramic does not have, but the ceramic 2213H is a better performer.

[RMC]

Hi woofer,

Thanks for the good word.

RE does this also apply to the mid drivers?

This idea also crossed my mind quickly but i didn't try to keep it since things are already complicated with six revisions of the Tech Manual. At this point i'd say it might look like that.

However, in a 3-way 12 db/oct crossover the mid driver polarity should already be reversed for proper operation...

Richard

[edgewound]

please i would like to know if the 2213H woofer jbl is positive or negative transducer...
very thanks in advance
luigi

2213H/2213/123A-3 = Positive voltage applied to the BLACK terminal results in forward cone movement.

2212/123A-1/126A/D123 all share the same motor and are opposite.

[imai]

[QUOTE=edgewound;439792]2213H/2213/123A-3 = Positive voltage applied to the BLACK terminal results in forward cone movement.

POSITIVE voltage a black terminal ??? BLACK ??? No phase test ??




deaer I have 123A-1 and have tested It ..It is positive . and NOT OPPOSITE !!!

2213H Positive voltage applied to the BLACK terminal results in forward cone movement.



I still do not understand ... there was someone at the jbl who was not well headed they made a mess !!!

[BMWCCA]

I still do not understand ... there was someone at the jbl who was not well headed they made a mess !!!

It is what it is. Worked for them, and easy to test/check. Is that a problem?

Not sure JBL really cared about what others thought. If you take a driver out, mark how it was connected or take a photo. Then test to see if the last guy messed it up!

[imai]

[QUOTE=BMWCCA;439804
]It is what it is. Worked for them, and easy to test/check
. Is that a problem?
no problem I would just like to understand, ( positive voltage on black terminal....

Not sure JBL really cared about what others thought.

of course you... but if you are a big company and you create confusion ... I don't think it's ok


If you take a driver out, mark how it was connected or take a photo.

I have driver out my 123a-1 end it are positive transducer if test it with positive voltage on red terminal of the driver
it are negative transducer if test it with positive voltage on black terminal of driver


in both cases I disagree with data sheet jbl about it


"""2213H/2213/123A-3 = Positive voltage applied to the BLACK terminal results in forward cone movement.

2212/123A-1/126A/D123 all share the same motor and are opposite.""

[toddalin]

Unless of course they screwed up at the factory and have a reverse polarity on the magnet. We know this to be the case in maybe 2% of the speakers..., present company included. Shiite happens.

[edgewound]

[QUOTE=imai;439806]

It is what it is. Worked for them, and easy to test/check
. Is that a problem?
no problem I would just like to understand, ( positive voltage on black terminal....

Not sure JBL really cared about what others thought.

of course you... but if you are a big company and you create confusion ... I don't think it's ok


If you take a driver out, mark how it was connected or take a photo.

I have driver out my 123a-1 end it are positive transducer if test it with positive voltage on red terminal of the driver
it are negative transducer if test it with positive voltage on black terminal of driver


in both cases I disagree with data sheet jbl about it


"""2213H/2213/123A-3 = Positive voltage applied to the BLACK terminal results in forward cone movement.

2212/123A-1/126A/D123 all share the same motor and are opposite.""

It's pretty simple, really.

A question was asked, and I responded with the correct answer. Analysis paralysis is futile. Just accept it and move on.

[RMC]

Hi Bedrock,

I think i have something for you with regards to your 2213H question. I don't have time right now but i'll post it tomorrow.

Richard