2205 to 2235 conversion

[Ed Zeppeli]

After searching extensively here and elsewhere I'm fairly certain that my 2205 cores will serve as 2235s when reconed.
JBL Canada says that kit will work with the 2225 but can't seem to answer definitively about the 2205 conversion.

Can anyone here please verify that the motors are the same? Has anyone performed this conversion successfully?

Thanks much!

[spkrman57]

I thought 2205 was not compatible with anything else.

I could be wrong though.

Ron

[christo]

After searching extensively here and elsewhere I'm fairly certain that my 2205 cores will serve as 2235s when reconed.
JBL Canada says that kit will work with the 2225 but can't seem to answer definitively about the 2205 conversion.

Can anyone here please verify that the motors are the same? Has anyone performed this conversion successfully?

Thanks much!

Have you read this thread

http://www.audioheritage.org/vbulletin/showthread.php?1572-Cone-Kit-Interchangeability

[Ed Zeppeli]

Have you read this thread

http://www.audioheritage.org/vbulletin/showthread.php?1572-Cone-Kit-Interchangeability

Yes I had. Thanks.

Are you aware of anyone who has done it?

[jbl]

Are your 2205 in need of a recone? I was tempted to do the same with a perfectly good pair of 2225. In the end I didn't have the heart to destroy an excellent pair of JBL 15 inch woofers. Luckily JBL have a few pair of new 2235H available. There are many blown 2225 and 2235 needing a recone available. The 2205 & 2225 are worth holding onto if you ever want to build a second system. Just my $.02

[Ed Zeppeli]

One of the pair needs recone and the other measures/feels ok though I haven't listened to it other than with a tone generator.

They will be going into some 4430s replacing some 2234s that currently reside there.

[Allanvh5150]

Question. Why replace the 2234's in your 4430's with something that is not going to be the same?

Allan.

[Ed Zeppeli]

Question. Why replace the 2234's in your 4430's with something that is not going to be the same?

Allan.

Because the 4430s came with 2235s. Also, the 2234s may work great in another system I'm thinking of building.

[jbl]

One of the pair needs recone and the other measures/feels ok though I haven't listened to it other than with a tone generator.

They will be going into some 4430s replacing some 2234s that currently reside there.

If one needs a recone you'll have to do both for equal sound.

[Ed Zeppeli]

If one needs a recone you'll have to do both for equal sound.


Yep. That's the plan. I'll have to tear up the 'better' one.

[Allanvh5150]

Well if you want to keep the 2234's for another project, you are better off buying a pair of 2225's from Ebay. Recone them as 2235's. They are cheap enough.

Allan.

[4343]

Well if you want to keep the 2234's for another project, you are better off buying a pair of 2225's from Ebay. Recone them as 2235's. They are cheap enough.

Allan.

This^.

While 2205's are equivalent physically the AlNiCo magnet assembly tends to lose charge in high power situations. If you have them charged up they will sound "identical" to the ferrite version, but may suffer demag in loud situations...

"YMMV"

[Allanvh5150]

Well the 2235 cone kit has no problem living within a 2205 frame and the specs will be the same if the magnet is recharged to spec. However, Alnico verses Ferrite, they will sound different.

Allan.

[Ed Zeppeli]

Sorry. I should have specified that they're the ferrite versions of the 2205, not the 2205A.

[more10]

E140 = 2225??? (http://www.audioheritage.org/vbulletin/showthread.php?7850-E140-2225&highlight=Recone+Basket+list)

[Allanvh5150]

Nope. E140 has a stronger magnet. 7/8" thick. The 2235 is 3/4" thick. The 2235 cone fits but it does not make a 2235,

Allan.

[jaybird]

Has anyone ever measured E140's with 2235 guts to see what they look like?

[1audiohack]

Yup.

I would say that if you were replacing a driver in an otherwise stock system like a 4430 you would/may hear the difference. If your building a project, I wouldn't sweat it. I have that exact combination in my own 4430's.

If I ever find the measurements I will post them.

Barry.

[ivica]

Has anyone ever measured E140's with 2235 guts to see what they look like?

http://www.audioheritage.org/vbulletin/showthread.php?7850-E140-2225&p=75791&viewfull=1#post75791
http://www.audioheritage.org/vbulletin/showthread.php?7850-E140-2225&p=75810&viewfull=1#post75810

But my experience is that the sound character of the lower frequency region is different. Comparison has been done with 2231A vs E140/2235ReCone using 2.2mH + 20uF Low-pass passive filter.
I think that 2235H vs E140/2235ReCone would be very similar.

Regrdas
Ivica

[jaybird]

I was temporarily using E140's with 2235 kits in them in my 4430's when I refoamed the 2235's and I didn't notice any difference, but then, the room is so full of speakers and musical equipment a fair judgement can't be made.

[Ed Zeppeli]

I got my 2205s (reconed to 2235s) back today. They look great but I have yet to install and listen. I'll report back when I do but I just thought I'd keep everything tidy and neat here and update this thread.

https://scontent-b-sea.xx.fbcdn.net/hphotos-ash4/t1.0-9/10311750_10152019648556076_4177623655027528256_n.j pg

https://scontent-b-sea.xx.fbcdn.net/hphotos-ash4/t1.0-9/10365759_10152019648711076_4599674649682544053_n.j pg

[mech986]

Ed, never did get your report on how they sounded after the recone. Any update?

[Ed Zeppeli]

They're awesome! Thanks for asking. I've done a few things since them including raising them up on stands, replacing l-pads, bypassing the biamp switch and it's made a world of difference. The bass response is fantastic but I still augment the bottom end with my 2242 sub.

It bothers me that I can't fix my broken picture links. I'd used a private folder on Facebook to hotlink to and it appears they changed the names of my photos and I can't go back and edit my posts to fix them.

Regards,

Warren

[mech986]

They're awesome! Thanks for asking. I've done a few things since them including raising them up on stands, replacing l-pads, bypassing the biamp switch and it's made a world of difference. The bass response is fantastic but I still augment the bottom end with my 2242 sub.

It bothers me that I can't fix my broken picture links. I'd used a private folder on Facebook to hotlink to and it appears they changed the names of my photos and I can't go back and edit my posts to fix them.

Regards,

Warren

Just post new links with the correct photos and some captions.

[Ed Zeppeli]

Here it is converted...

https://scontent.xx.fbcdn.net/hphotos-xpf1/t31.0-8/10362781_10152019648706076_3375620577096900253_o.j pg

https://scontent.xx.fbcdn.net/hphotos-xfp1/t31.0-8/10014359_10152019648556076_4177623655027528256_o.j pg

[mech986]

So they were 2205H's? Cool, they look very very Nice!

[Ed Zeppeli]

Yes. It worked out great.

When I bought the 4430s they had 2234s (as labelled on the back) in them with a different kind of replacement foam job. Since I was unsure if there was a mass ring and knew that the foam was not similar to OEM I went with the re-coned 2205s to make sure the monitors were acoustically correct.

I have some Rick Cobb 2235 foams and can at least bring the 2234s up to spec when I have a chance...still unsure if they have a mass ring or not.


Cheers,

Warren