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Switching speaker cone caps

appleknocker - 2008-03-27 12:22

I ended up having 4 3.2 ohm white speakers from sharp gf-8585 parts boxes that I am sending to Kittmaster to help get his gf-1000 up and running - the speakers I have are functional but were badly yellowed and stained. I bleached them and they came out looking pretty nice now, but the black caps do not look good at all. Does anyone know what the process would be and how difficult this process might be to remove the black caps from these speakers and replace them with the chrome caps that are on Kittmaster's original gf-1000 speakers?

kittmaster - 2008-03-27 13:00

Actually wouldn't a brand new sharpie restore the original black color???...... Nod Yes

kittmaster - 2008-03-27 13:01

I could do that here since I have a bunch.....

fatdog - 2008-03-27 13:05

I would think you could just use an X-acto knife to cut the chrome caps off the old, busted woofers and then glue on top of the black ones. Maybe not the best way, but would probably look just as good.

appleknocker - 2008-03-27 14:20

Both are good ideas. the sharpie and the glue over. I had another old sharp white speaker and the black cap peeled off it really easy - So if they all peel off this easy - what type of glue would you use to reglue the chrome caps back on?

kittmaster - 2008-03-27 14:47

There is also another issue, I wouldn't cut them off at all and sharpie them. The chrome caps for the center speakers are LARGER than the outer speakers and I fear that they will not sit right. It would probably just be better to black up the centers and be done with it......

On my sharp there are two different part numbers between the subs and the outer drivers, most likely because of the difference in the cap sizes.

kittmaster - 2008-04-03 18:21

drivers arrived today.....the SO says what a great packing job....A++++++

Put them all in, they appear to work perfect, but the center subs have a huge "hum".....so something else to look for, but they are all working and it sounds really good.

Something else to look at sometime to hunt the humming, and its only from the sub amp. Not sure what it is......

Thanks again appleknocker.....truely grateful!

Chris

appleknocker - 2008-04-03 18:37

Great news! except for the hum - but I have no doubt you will seek and destroy that soon enough!

kittmaster - 2008-04-04 12:31

I found that if I add a "jumper" from the ground from the connector that feeds the top board to the preamps ground on the same board ( one end to the other) that the noise radically drops......not quite zero.....but very very low......comparably......which tells me the board has issues.

If I completly disconnect the input to the amplifiers......all four......its whisper quite......so that means the power supply and amps are all fine......it something in the preamp stages that have issues........damn......

appleknocker - 2008-04-04 14:18

maybe my speakers jinxed it

kittmaster - 2008-04-04 15:05

nope, it was humming with the one remaining busted driver too....I noticed that but dismissed it at the time.......probably just a bad solder connection somewhere.