Yes, you're right about your concerns about the Voice-Coil depth ( vis-a-vis ) being properly centered to the middle of a JBL's top-plate ( iow, the gap-depth alignment ).
That may need adjusting...
Type: Posts; User: Earl K; Keyword(s):
Yes, you're right about your concerns about the Voice-Coil depth ( vis-a-vis ) being properly centered to the middle of a JBL's top-plate ( iow, the gap-depth alignment ).
That may need adjusting...
Thanks for those times Rob ( I hadn't yet gotten to those points ).
:)
Hi,
I'm glad that you all mentioned the 120deg horizontal dispersion of GT's custom printed horn ( after seeing the pic of his current system I was left wondering...
FWIW, I think your cone kit is actually from a Stage Accompany 1503 woofer.
Not that it matters much, since it's obviously compatible with the JBL magnetic assembly ( which SA copied when they...
Hi Silvanik,
My advice ( if you want to go 100% active-DSP ) would be to contact Harman International > get a recommendation from them for a qualified Synthesis technician for your area and then...
@MoD
MoD, the 75 grams measured weight obtained from a scale doesn't represent a drivers MMS
What you obtained by weighing your recone kit on a kitchen scale is more accurately called the...
The following list ( first linked to by RobH in his above post ) appears as one of Giskard's creations ( he was so good at this sort of thing that I imagine that he knew this all from memory ).
...
Cool patallen,
Your mystery 2225 recone will remain a mystery ( though FWIW, that rust-colored banding or glueline on the back is much more typical of a very specific generation of the 2226HPL...
Ian,
Thanks for demonstrating your complete understanding of the terms "MMS, MMD & Air-Load".
( Now to put it to use ), it would be helpful if you could puzzle-out why ( or offer-up a plausible...
Ian you're using the terms MMD & MMS backwards ( MMS = MMD plus air-load ).
That's definitely not helpful to this thread.
Go look at one of my early links posted in this thread ( to the...
The weight of my ( oem 2235H kit's ) dust-cap is 3 grams and the mass ring is 32 grams.
The kit is from @ 2001.
:)
One needs to entertain the possibility that JBL's TS numbers for the 2225H have always been wrong ( within their official documentation ).
After-all, JBL's numbers have proven to be wrong...
Thanks for implementing my suggestion to make your posts more readable. :thmbsup:
Now to your first question:
With the static weight of your eBay cone kit being around 105 grams, the missing...
Thanks for that! Denny
:)
@patallen,
It's appreciated that you attempt proper punctuation ( by including commas, periods, etc. ) in your sentence structures .
( Capitals, at the beginning of each sentence would help...
Thanks a lot Rob!
:)
2-Part Epoxy seems a reasonable choice for a part that might impact the pole piece ( inadvertently, of course ).
:)
Thanks Rob!
:)
@RobH3606
Hi Rob,
If you still own it, could you please publish the static weight ( including dust-cap ) of your JBL 129H recone kit ( I'll assume that you have an applicable kitchen scale...
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I missed your most recent post.
Yes, I think you're ready to glue-up ( assuming things are also jiving with the GordonW info that I linked you to ).
:)
PS: I also have here a...
Thoughts??
If one looks at my pic of the OEM kit ( posted above ) the "collar" of the spider is pointing towards the voice-coil >> suggesting that you may have your spider flipped upside-down
...
Thanks for that.
Those kits seem to be real close to OEM JBL then , a good thing.
I notice I had a senior moment and changed a 1.25" measurement into a 4.25" measurement.
I'm going to...
What's the length ( height ) of your kit's Kapton former ( that the Voice-Coil is wound onto ) ??
OEM JBL ( from around year 2000 ) was @ 1.25" ( with about 1/8" sticking above the glue-line >...
I would certainly put re-edging out of your mind for the time being.
- As far as I'm concerned, the color change is normal for aging rubber compounds.
You might want to research if there are any...
See if you're able to glean the info you need from this conversation between GordonW + myself.
2234/2235 Voice Coil Former Length
...