Guest filedog Posted September 11, 2007 Report Share Posted September 11, 2007 Recapped last weekend, with Solens, noticeable difference, bit harsh, hoping "burn in" isn't just a myth : )While working on them, I had a better look at my surrounds, (not original) looks like they are porous, cones "return" pretty quick, but I have nothing to compare them with. Also, they seem to have an applied coating of a clear "sealer" that is still somewhat soft and tacky. The sealer is not too even, and parts of the foam are fragile.So, time to refoam. Read plenty of great info, here and on supplier's sites (think I will go with m-sound and the JBL 125a foam). Anyway, here's my question : ) my woofers (late model, speaks were made in '74) have screen material over the big holes in the basket, I've never seen that mentioned here, but they appear original, and are labeled AR on the magnets. Are these really original, and if so, how do I go about the refoam, if I can't get to the back of the cone? All the instructions I have seen require this. Thanks! Link to comment Share on other sites More sharing options...
Carlspeak Posted September 11, 2007 Report Share Posted September 11, 2007 >Recapped last weekend, with Solens, noticeable difference,>bit harsh, hoping "burn in" isn't just a myth : )I have a report to be shared here soon on some research I have done on cap types (low vs high cost) and burn in. It involves waveform analysis. :-)))>While working on them, I had a better look at my surrounds,>(not original) looks like they are porous, cones>"return" pretty quick, but I have nothing to compare>them with. Also, they seem to have an applied coating of a>clear "sealer" that is still somewhat soft and>tacky. The sealer is not too even, and parts of the foam are>fragile.>So, time to refoam. Read plenty of great info, here and on>supplier's sites (think I will go with m-sound and the JBL>125a foam). > Anyway, here's my question : ) my woofers (late model, speaks>were made in '74) have screen material over the big holes in>the basket, I've never seen that mentioned here, but they>appear original, and are labeled AR on the magnets. Are these>really original, and if so, how do I go about the refoam, if I>can't get to the back of the cone? All the instructions I have>seen require this. Thanks!The screens are original and the consensus here is that they are there to keep clumps of fiberglass from getting lodged between the basket frame and back of the cone. You'll need to apply a low voltage DC source to the speaker to raise and center the cone during the gluing process. This will allow you to preserve the dust cap and also not have to get at the back of the cone. Just make sure when you finish gluing and remove the DC, you immediately check the VC for rubbing before the glue dries. Good luck!It's all about the musicCarlCarl's Custom Loudspeakers Link to comment Share on other sites More sharing options...
Guest filedog Posted September 11, 2007 Report Share Posted September 11, 2007 Carl, thanks for the reply, the method you are talking about seems a bit fiddly, is it ok to just remove the screens? Link to comment Share on other sites More sharing options...
Carlspeak Posted September 11, 2007 Report Share Posted September 11, 2007 >Carl, thanks for the reply, the method you are talking about>seems a bit fiddly, is it ok to just remove the screens?Sure. They come off prety easy. Recommend you glue them back on when finished, however.It's all about the musicCarlCarl's Custom Loudspeakers Link to comment Share on other sites More sharing options...
Guest filedog Posted September 11, 2007 Report Share Posted September 11, 2007 Carl, so, do most of the AR 10s have these screens? I have the "special paper towels" in place, don't these prevent the clumps getting in there? If I do remove them, can I use hot glue to put 'em back in place? I take it that the preferred method is just to use the battery? I guess I could do it that way, I'm just a bit worried to mess up the alignment. So, did your research show my Solens will burn in and sound great? : )thanks! Link to comment Share on other sites More sharing options...
Carlspeak Posted September 11, 2007 Report Share Posted September 11, 2007 >Carl, so, do most of the AR 10s have these screens?Most of a certain vintage do.>I have the "special paper towels" in place, don't these>prevent the clumps getting in there? Yes, the brown, creped packaging paper is there for that purpose.>If I do remove them, can I use hot glue to put 'em back in>place?Yes>I take it that the preferred method is just to use the>battery? I guess I could do it that way, I'm just a bit>worried to mess up the alignment.Use the battery if you don't want to bother removing the dust cap and shimming and installing a new dust cap. However, that's the most SURE way to prevent voice coil rubbing. Others may argue otherwise.> So, did your research show my Solens will burn in and sound>great? : )We'll see :-)))It's all about the musicCarlCarl's Custom Loudspeakers Link to comment Share on other sites More sharing options...
dynaco_dan Posted September 11, 2007 Report Share Posted September 11, 2007 >Recapped last weekend, with Solens, noticeable difference,>bit harsh, hoping "burn in" isn't just a myth : )Hi there;Please keep us up to date on your opinion of these caps and how they sound.What value and voltage rating Solen caps did you decide to use, please?You may try using rubber glue for re-glueing the plastic screens back onto the frames. Link to comment Share on other sites More sharing options...
Guest filedog Posted September 12, 2007 Report Share Posted September 12, 2007 I used these caps:http://www.partsexpress.com/solen-metalliz...FTOKEN=24012371Solen metalized poly, 400V 3.9 and 6.2 uF Link to comment Share on other sites More sharing options...
dynaco_dan Posted September 12, 2007 Report Share Posted September 12, 2007 >I used these caps:>Solen metalized poly, 400V 3.9 and 6.2 uFAre these the same capacitance values as the originals? Link to comment Share on other sites More sharing options...
Guest filedog Posted September 12, 2007 Report Share Posted September 12, 2007 Vern,the stock cap is 4 and 6 uF, but everything I read suggested these values should be ok. Link to comment Share on other sites More sharing options...
Guest filedog Posted September 12, 2007 Report Share Posted September 12, 2007 I got info from m-sound, he now uses the JBL 125a foam in his 2ax kit, and it comes with a 2.75" felt dust covers. Is that a good size? Thanks! Link to comment Share on other sites More sharing options...
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