Audio Performance SK-F project |
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smitske96
Young Croc Joined: 16 February 2016 Location: The Netherlands Status: Offline Points: 1085 |
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I did some searching, however Ciare has some models who look like it, none of them match really. Then I searched at Sica 8" and I found a model where the chassis and magnet look identical. I only can't find a picture were the cone is 100% visible. Regarding the RCF, I think that would be really hard, I would need to cover the whole edge and the tears are right against the suspension. Repairing that would probably change the suspension characteristics quite a bit not?
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Peter Jan
Young Croc Joined: 16 December 2008 Location: Belgium Status: Offline Points: 1019 |
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Turned everything upside down, but I have only a couple BC122 recone kits. As for the RCF, this seems very repairable indeed, I have repaired far worse than that. Don't worry about changing parameters, in this application the speaker wont be moving that much anyway and the impact on sound/SPL/etc. will be barely measurable, let alone you could hear it. The difference between the B&C and the RCF is far greater than what you can accomplish with any repair of that kind.
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smitske96
Young Croc Joined: 16 February 2016 Location: The Netherlands Status: Offline Points: 1085 |
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I can give it a try, but probably want to cover a whole ring since it will probably tear at other places.
I searched about repairing something like that, but couldn't find a good example/instructions. Also I am not sure what jay cloth would be in Dutch
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cravings
Old Croc Joined: 30 January 2007 Location: Ireland Status: Offline Points: 7441 |
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it's not pretty.. but you can try and do it on the back side of the driver. there's no reason not to try it. |
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Mikkel
Young Croc Joined: 17 May 2013 Location: Huddersfield Status: Offline Points: 549 |
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Rizla and pva works for me.
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DMorison
Old Croc Joined: 14 March 2007 Location: Aberdeen Status: Offline Points: 1647 |
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If Cravings photo doesn't help, its basically very light fabric cloth sold as a general purpose kitchen cloth - you'll likely have something similar enough in any supermarket. Cheers, David.
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smitske96
Young Croc Joined: 16 February 2016 Location: The Netherlands Status: Offline Points: 1085 |
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I have found something similar. Would PVA glue suffice?
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cravings
Old Croc Joined: 30 January 2007 Location: Ireland Status: Offline Points: 7441 |
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water it down so it's thinner. some people use coffee filter paper too.
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smitske96
Young Croc Joined: 16 February 2016 Location: The Netherlands Status: Offline Points: 1085 |
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In about one week I'll try and repair the RCF but I also have bought two L12P110K's for a good price.
One RCF and the LA driver will be sold. Regarding the 8" driver, I have send Ciare an email about the driver with some pics and magnet dimensions, hopefully they can help me out. If they will suffice I'll keep them for the cab, otherwise I'll exchange them with something different like the B&C 8PE21. Filters are checked and one has some minor work to it. I drew up the schematic and have simulated the circuit in LTspice. Does anyone have experience with the BMS 4548-16 OEM driver? I can't find that much about it, and would like to know if they are up to the job SPL/sound wise. For example a driver like the DE250 isn't that expensive for me.
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smitske96
Young Croc Joined: 16 February 2016 Location: The Netherlands Status: Offline Points: 1085 |
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The 8" driver is indeed Ciare made, it's the M200.50 C/Fx-MR
Power: 150 Watt Max Power: 300 Watt Re: 9,20 Ohm Fs: 114 Hz Cms: 0,00008975 m/N Mms: 21,7 g Le: 0,75 mH Qms: 1,15 Qes: 0,40 Qts: 0,30 Vas: 5,76 BL: 18,94 u0: 2,05 % Xmax: 0 mm Sd: 214 cm2 When interpreting the specs it looks like a good candidate for the cab. Testing will be done in the coming weeks.
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smitske96
Young Croc Joined: 16 February 2016 Location: The Netherlands Status: Offline Points: 1085 |
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Today I'm going to try and fix the L12P110K surround, and in this order probably:
-Make it as clean as possible for the glue -Make several strips to patch it up -Apply glue and the strips (on the back) -Have patience -Test The only thing I am not sure about is how to apply the glue. I also could apply some glue on the strips and then put them on the surround/cone. |
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Old king coles
Registered User Joined: 09 October 2017 Location: Weston super ma Status: Offline Points: 210 |
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That's what I did previously, and a little smear on the repair area for good measure...works a treat
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