Could anyone help me to identify this is real JBL 2235H? Please
Could anyone help me to identify this is real JBL 2235H? Please
Sometimes the back of the magnets have a nice aluminum identification plate, and sometimes they don't. The white stamping on it looks similar to that of what I have on a couple of my 2245H. The white writing on the cone is indicative of JBL's assembly practice. The "goop" around the edge of the cone indicates a little sloppy of a re-foam (maybe they used rubber cement instead of the typical white water-based adhesive that dries clear).
So, I can't say for sure, but it certainly has the tell-tale signs of authenticity. Others in the group here have professional experience and should be able to chime in. Can you give us a picture of the front of the cone?
Svollmer said the most of the relevant thing that I could thought of.
But, if the driver has been reconed earlier with a type of cone kit other than 2235 then you will have another Fs than for a real 2235H (20 Hz). For to be absolutely sure do a measure of the drivers Fs (free air resonance) It should be as near as 20 Hz. If you cant do it your self maybe a reconer can do it for you?
Flodstroem
What about showing a picture of the front too? That shall help identify the cone, not just the basket. ;-)
right.
...at least was at one time.
best scenario (given the pic) is a properly re-surrounded driver (previously re-coned in 1990, and hopefully with a JBL C8R2235 kit).
No guarantees of either. Without further identification and testing, I'd (personally) call it a nice frame/magnet basis for a recone.
Driver has obviously been refoamed, to the back, and a lousy job at that.
Cone looks OK for a 2235H, looks likes an original JBL production......
Flodstroem
In your original pic, there is a white stamped number on the cone at the far right. See if they can get you the number or the pic. There is a standard 5 digit number that JBL used for their 2235 cone number. If that is the correct number, it would indicate the correct cone.
Seeing as the grease pencil info indicates a recone done in 1990, I'm betting its a genuine JBL recone part, simply because in 1990, AFAIK, there were no aftermarket parts available in use.
When faced with another JBL find, Good mech986 says , JBL Fan mech986 says
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