Still couldn't get in touch with him. What does it matter? when I got them back he told me that he used some paper from an old stock where he bought from india.
Greets!
With rebuilds, really need to measure their T/S specs, otherwise can only recommend the larger cab I posted earlier, then damp, EQ to 'taste'.
With rebuilds, really need to measure their T/S specs, otherwise can only recommend the larger cab I posted earlier, then damp, EQ to 'taste'.
He has redone the full cone and edges. He said he used the same voice coil that was originally there. that's what he told me 🙂.
It would be nice to know where he found the paper when I
understand "redone" as removed and using new replacements.
understand "redone" as removed and using new replacements.
Doesn't matter if they are or not; what matters is can they measure the T/S specs, which I would be very surprised if they can't. With these specs, either us or them can calculate a number of different type cab options.
Without them, can only recommend this generic box size, tuning: driver Fs = ~60 Hz = ~4 ft^3/113.27 L** with a vent area [Av] = driver effective piston area [Sd] = 28"^2/180.65 cm^2 for 8" drivers = 60 Hz tuning [Fb].
** I misread the old chart I have, so the 8 ft^3 I posted was wrong.
A basic 1:1.4:2 box ratio = 13.5"/~34.3 cm x 19"/~48.5 cm x 27"/~68.6" internal dimensions [i.d.] or whatever shape you prefer of ~the same volume [Vb].
Mount the driver wherever you like with the vent nearby and damp it internally by ear ['taste'].
Thanks a lot for this infor. I will take it to the builder, I hope he can decipher these mathematical values without a rough schematic on how it may look.
??? It's a rectangular box; how it looks will be your choice based on how you want it positioned and where you want the driver located.
WHERE is local? 🙂
99% omit this very important information.
Answers depend A LOT on location.
As of edge treatement/doping, a Pro repair guy will use the proper stuff , which is a water base Latex emulsion (same as "acrylic" roof tile sealant, but 10X as concentrated), white when liquid, bluish as it dries, transparent when fully dry, paper looks blacker than before by comparison.
And it never really dries, being Latex based is always fkexible (good) and tacky (annoying).
Some fake it by using diluted vinyl carpenter´s glue or solvent based adhesives (contact cement) which is wrong.
PS: surprised he reused the voice coils, since at least one was presumbly damaged.
And even if possible, those paper and nitro adhesive vintage coils sound good but stand "nothing", think 12-15W tops.
Maybe he used vintage style coils, which to boot raises power handling.
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Paper cones used to be made in Jaipur, Rajasthan State, seen repair men using those.
But getting and transporting a few cones...hassle.
Here the old coils are not reused, they put new coils, and the repair sounds good if done properly, which is really based on the hand skill of the person doing it.
But getting and transporting a few cones...hassle.
Here the old coils are not reused, they put new coils, and the repair sounds good if done properly, which is really based on the hand skill of the person doing it.
I think this is exactly what he used to rebuild speakers. He specifically told me that he used its original coils because they were not damaged.
By the way, location is sri lanka.
By the way, location is sri lanka.
I think it is incredible that somebody was able to find paper cones like this.
It is not possible in the countries of origin.
It is not possible in the countries of origin.
I also thought the same thing, I mean out in here somewhere nowhere. Lol 🙂, I felt lucky to get them repaired like this.
Speakers are routinely re built here, no big deal for us.
Quality can be erratic, found a good shop here with same day service.
6" full range re coning, new coil, 100 Rupees, about US $1.35.
Reasonable...
Quality can be erratic, found a good shop here with same day service.
6" full range re coning, new coil, 100 Rupees, about US $1.35.
Reasonable...
