So I am not sure if I put this in the right forum but it seems to be the best spot.
I am reconing 2 of my JBL 2226H drivers which had been previously reconed badly (not by me).
I purchased a set of cones from ebay a while back (2 years ago or so) to do some checking on cone weight but never got around to it until now (to many projects). The cones came from one of the reconing guys well known online that has a store on ebay but unfortunately I cannot remember who. Nice cones look the part and matches everything visually as well as in their physical dimensions (except weight). When I weigh this cone its 48.7 grams.
The cone that I took off the driver yesterday was an MW marked cone that weighs 56 grams. Other then weight the two cones (ebay vs MW) look identical.
I do not have any original JBL 2226 cones other then the ones I have on another pair of JBL 2226H drivers I'm using in a set of Clone 4343's I built a year ago. When I look those cones up and down they too look like they would come in on the heavy side if I could weigh them.
So my question is:
Does anyone know the weight of an original JBL 2226 cone or do you have one that you could weigh?
Thx in advance for all your help.
I am reconing 2 of my JBL 2226H drivers which had been previously reconed badly (not by me).
I purchased a set of cones from ebay a while back (2 years ago or so) to do some checking on cone weight but never got around to it until now (to many projects). The cones came from one of the reconing guys well known online that has a store on ebay but unfortunately I cannot remember who. Nice cones look the part and matches everything visually as well as in their physical dimensions (except weight). When I weigh this cone its 48.7 grams.
The cone that I took off the driver yesterday was an MW marked cone that weighs 56 grams. Other then weight the two cones (ebay vs MW) look identical.
I do not have any original JBL 2226 cones other then the ones I have on another pair of JBL 2226H drivers I'm using in a set of Clone 4343's I built a year ago. When I look those cones up and down they too look like they would come in on the heavy side if I could weigh them.
So my question is:
Does anyone know the weight of an original JBL 2226 cone or do you have one that you could weigh?
Thx in advance for all your help.
Not a very helpful answer but my ebay purchase history goes back to 2017. If yours goes back that far you should be able to find who sold it to you and ask them direct.
Rob.
Rob.
Yes correct from what I know it is not. MMS carries in its number a portion of air resistance I believe.
You know I did check that but could not find it in my ebay history not really sure why. I did email one of the well known recone supply guys out on the web who I suspect we may have all used at one point in time and posed the question to them. They responded an the answer was that they had no idea what the original cone weight was, further they did not know the weight of the 2226 cones they sold, nor could they check it. This part of their answer was a bit disappointing, "Our supplier we believe gets then from the original JBL supplier". Sorry but I did not think that was a great answer.
There is a 2226H JBL original recone kit for sale online from a known supplier with a good rep so I think I am going to buy that. Do some serious tech measurements on it and have that for future uses. I'll report back when I have it in hand.
MMS is the mechanical mass of the driver diaphragm assembly including air load.
So I just ordered a new MW2226 cone from one of the reputable online suppliers It is 51.7 grams. so clearly MWA changed cone weight at some point. Unfortunately by the time I got back to the person selling the original JBL 2226 recone kit it had been purchased. So still waiting to see if I can find one or if someone here has one they can measure.