dubai2000 Posted August 22, 2006 Share Posted August 22, 2006 Today I received my JBL 2470 drivers. They should be the 16 ohm version and I was wondering if I got things right about checking the diaphragm condition: 1) The only way of doing this is by using an ohm meter, right? 2) The meter readings should be around 10/11 ohm, right? 3) Anything lower means put in a replacement, right? 4) When installing the new diaphragm (I got myself some Radians) I have to make sure....? You can see this is the first time I am doing this [] so any feedback will be greatly appreciated - thanks! Wolfram Quote Link to comment Share on other sites More sharing options...
Deang Posted August 25, 2006 Share Posted August 25, 2006 Yes, yes, not necessarily but probably. Get your money back on the Radians -- you can't use them. Only the original phenolics in the 2470 will work right (go low enough) for what you are using them for. Quote Link to comment Share on other sites More sharing options...
Duke Spinner Posted August 27, 2006 Share Posted August 27, 2006 you will find quite a difference in performance, between JBL replacement parts, and say, Radian .... please don't expect a JBL driver, with non-JBL parts ... to represent the performance designed into the product it's like a re-cone, w/o edge-wound wire Quote Link to comment Share on other sites More sharing options...
hwatkins Posted August 27, 2006 Share Posted August 27, 2006 What they said.... Quote Link to comment Share on other sites More sharing options...
dubai2000 Posted August 28, 2006 Author Share Posted August 28, 2006 I hear what everybody is saying....and try to learn []. So does anybody know of a source for the right JBL parts for less than $250 a piece???? Wolfram Quote Link to comment Share on other sites More sharing options...
Deang Posted August 28, 2006 Share Posted August 28, 2006 Nope, they cost a lot no matter where you get them. Part number D16R2470 http://www.jblproservice.com/pdf/Transducers%20Parts%20List/Transducer%20Parts%20List.pdf#search=%22JBL%20D16R2470%22 http://www.speakerrepair.com/Merchant2/merchant.mvc?Screen=PROD&Product_Code=10-259&Category_Code=JBL-Diaphragms http://simplyspeakers.com/reconing-jbl.htm Quote Link to comment Share on other sites More sharing options...
djk Posted August 28, 2006 Share Posted August 28, 2006 http://cgi.ebay.com/RCF-M65-DIAPHRAGM-FOR-N479-480-481-CD2520_W0QQitemZ7353111974QQihZ016QQcategoryZ47092QQssPageNameZWD1VQQrdZ1QQcmdZViewItem Quote Link to comment Share on other sites More sharing options...
awsjr Posted August 29, 2006 Share Posted August 29, 2006 I don't get it.....are you trying to say these diaphragms will work in a jbl 2470 ?.... they only have one..... http://www.jamminjersey.com/speakers.php?prod=jblcomp#diaphragms D16R 2461 16-ohm Phenolic Diaphragm - Fits 1" throat drivers. New, not used Al Quote Link to comment Share on other sites More sharing options...
dubai2000 Posted August 29, 2006 Author Share Posted August 29, 2006 djk, thanks a lot for pointing those out! They do go low enough, don't they? And how would they be aligned...especially by a pretty ignorant newbie without electronic tools[:$]? Wolfram Quote Link to comment Share on other sites More sharing options...
ZAKO Posted August 29, 2006 Share Posted August 29, 2006 They are Pinn aligned....But I would take it to a speaker repair shop. For proper repair .And testing Quote Link to comment Share on other sites More sharing options...
dubai2000 Posted August 29, 2006 Author Share Posted August 29, 2006 Maron, that means they can simply be put into the driver and it's obvious where the red and black side of the diaphragms should be placed? I have seen some bigger photos of those and it seems the wires from the driver to the diaphragm have to be soldered on, right? The 'problem' with the 2470s is that one of the previous installed diaphragms (non phenolic) is shot, so new diaphragms are a must and as the Radians don't go low enough...... Sorry for all those questions, but as mentioned above: I am absolutely new to opening up drivers []. Wolfram Quote Link to comment Share on other sites More sharing options...
ZAKO Posted August 29, 2006 Share Posted August 29, 2006 On mine the wire is held on with a screw.....Thats why you will need a pro ....If soldered you are very close to the STRONG magnet.... If you slip....By By diaphram. Quote Link to comment Share on other sites More sharing options...
djk Posted August 29, 2006 Share Posted August 29, 2006 The RCF fit the JBL magnet structures, _BUT_, you not only need a soldering iron, but you will need a generator too. The holes for the dowel pins are oversized and the diaphragm must be manually aligned. The high end sounds better than the JBL ones do. The price is nice. I don't use them low, so I can't comment on that (floor monitors crossed at 1.5Khz). Quote Link to comment Share on other sites More sharing options...
dubai2000 Posted August 30, 2006 Author Share Posted August 30, 2006 Thanks for the additional input......it would have been nice though - at least in terms of price . Wolfram Quote Link to comment Share on other sites More sharing options...
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