E140 = 2225???

[toddalin]

Still looking for a fourth woofer for recone as a 2235. Came across an E140 basket on ebay. Seller says "recone it as a 2225..." In past postings, the E140 was not on Mr. Widget's list of 2235 recone baskets, yet the 2225 is. Can an E140 also be redone as a 2235?

http://cgi.ebay.com/JBL-E140-FRAME-1...QQcmdZViewItem

Also, can anyone verify that this second basket pic is a K140 that could be redone as a 2235? And, do you see any obvious flaws in the basket that could preclude it's recone?

Thanks again

http://cgi.ebay.com/JBL-K140-FRAME-A...QQcmdZViewItem

[Lancer]

One more time...

and this time if someone else posts saying "you can't hear the difference" they will be permanently banned from this site.

Two different cores, stock 2225/2235 1.2 T*m core and E130/E140 1.35 T*m core.

Red signifies changes from stock 2234H and 2235H.

[Lancer]

The 1.35 T*m assembly (E140 for example) uses the 7/8" thick magnet and the 0.280" top plate.

The 1.20 T*m assembly (2235H for example) uses the 3/4" thick magnet and the 0.280" top plate.

The 1.15 T*m assembly (2220H for example) uses the 3/4" thick magnet and the 0.350" top plate.

The 0.95 T*m assembly (2215H for example) uses the 7/8" thick magnet and the 0.600" top plate.

The 12-inch E120 also has the thicker E130/E140 magnet so when reconed as a 121H, 2202H, or 2204H there will be a difference (124A/124H/2203/2203H kit is unfortunately NLA).

[Ian Mackenzie]

One more time...

and this time if someone else posts saying "you can't hear the difference" they will be permanently banned from this site.

.

Yes it annoying, the last thing we want is hyprid wonna be's.

Modelling this is BassBox its obvious. If they had any brains at all they would have done this before opening their big traps.

[Lancer]

Opening their bass traps? Huh?



BTW toddalin, thanks for bringing this up again. It's been the topic of several posts lately. Robh3606 has suggested this information be placed in the Technical Reference Section.

[toddalin]

Opening their bass traps? Huh?



BTW toddalin, thanks for bringing this up again. It's been the topic of several posts lately. Robh3606 has suggested this information be placed in the Technical Reference Section.

You didn't answer the question and only added to the confusion???

[Robh3606]

Here we go. This should answer the guestion,

No not without a clearly audible difference between the 2 baskets due to the higher flux in the E series baskets see below.

Rob

[Lancer]

You didn't answer the question and only added to the confusion???

You've got to be fucking kidding me... if you're confused by my posts then you need to find another hobby...

And... I've answered this question numerous times in numerous ways... it obviously didn't do any good.

[toddalin]

You've got to be fucking kidding me... if you're confused by my posts then you need to find another hobby...

And... I've answered this question numerous times in numerous ways... it obviously didn't do any good.

It was confusing because how would one know which model number basket is a 1.35 T*m, a 1.2 T*m, etc.???

Rob's post does a pretty good job of clearing this up.

[Lancer]

It was confusing because how would one know which model number basket is a 1.35 T*m

E120, E130, E140.

Rob's post does a pretty good job of clearing this up.

Ok.

If that's what does the trick here is the corrected version:

[Ian Mackenzie]

It was confusing because how would one know which model number basket is a 1.35 T*m, a 1.2 T*m, etc.???

Rob's post does a pretty good job of clearing this up.

I thought Lancer's post is quite concise:

Quote:
Originally Posted by Giskard
Two different cores, stock 2225/2235 = 1.2 T*m core and E130/E140 = 1.35 T*m core.

Red signifies changes from stock 2234H and 2235H




Perhaps the issue in the field is here baskets and cores have had the model number removed, only those experienced and technically familiar with the cores will know which is which (as noted in other threads).

[Zilch]

In 5 cuft tuned to 24.5 Hz:

Black = 1.20 T*m

Orchid = 1.35 T*m

[Miss Orchid]

Yes?

[Ian Mackenzie]

Zilch,

If you have time please post another sim with 5 cu ft 3 with an fb of 28. I did it before but did not save it . Its more meaningful and shows the effect on the electrical/magnetic TL parameters on the modelling on a max flat tuning.

[Zilch]

Yes?