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Martin Philishave MH-212 : Guess the driver !!
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needle fx View Drop Down
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    Posted: 02 April 2012 at 2:23pm
Hi everyone.
Let see if someone can help me, I bought a couple of martin philishaves i think model mh212
(because is the 2 parts mold horn) and not a m600 as the seller stated but... thats another history.
At the moment I'm curious about the drivers that are loaded in. I have some pics uploaded, I hope now.
The old owner told me he drove the 2 phillis (x4 drivers in total) with 600wRMS 4ohm bridged.
And that he didnt touched them inside in 10 years he owned them (I guess pretty old drivers, still working though ;) )They are connected in series as can be seen in one of the pics. They dont have any label as can be seen. For the basket I reckon can be an RCF unit. But thats as far as I go without blind guessing.
If someone could help me would be great, I want to refurbish completely the horns and this information would help a lot the process. 
Thanks everyone for your time.

http://img17.imageshack.us/img17/7996/dsc08635om.jpg
http://img855.imageshack.us/img855/2668/dsc08634p.jpg
http://img3.imageshack.us/img3/2243/dsc08633uk.jpg
http://img685.imageshack.us/img685/9136/dsc08632fp.jpg
http://img338.imageshack.us/img338/5725/dsc08631l.jpg
http://img152.imageshack.us/img152/9461/dsc08624t.jpg
http://img193.imageshack.us/img193/2848/dsc08623rg.jpg


Edited by needle fx - 02 April 2012 at 2:27pm
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Jimmer View Drop Down
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RCF L12P24?
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Certainly not the ATCs which would normally be in there - are the phase plugs present?  Also, what is that box and wiring on the inside of the cabinet?
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Originally posted by Jimmer Jimmer wrote:

RCF L12P24?


Yep,looks like them.
Be seeing you.
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Originally posted by jbl_man jbl_man wrote:

Originally posted by Jimmer Jimmer wrote:

RCF L12P24?


Yep,looks like them.
Front of the cone looks exactly like the 24, except for the truly obvious missing metal dome. However the glue on the dome doesn't look original so the dust caps were probably replaced sometime.
Best regards,
Teun.
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Points: 39 		Post Options Post Options   Thanks (0) Thanks(0)   Quote needle fx Quote  Post ReplyReply Direct Link To This Post Posted: 02 April 2012 at 5:18pm
Nice first steps forward, thanks again for the input.

Another differences I noticed were the rims of the drivers in different material, they grey ones being more clothy/matt like and also the terminals are push-in in one and soldered in the other.
They are the same mix of drivers in both speakers. Any idea why this could be? 


To centauri:
The phase bungs are present. The black box at the moment isn't connected to speakers, 
anyway I think, for what I've being reading around, that is used to change the impedance 4/8/16ohm.
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cravings View Drop Down
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can the phase bungs fit with those rcfs? thought they only fitted with reversed dustcaps on the old ATC drivers.
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To cravings.
They do fit for the looks of it, apparently they have being there for at least 10 years. 
Although I havent push it very hard just to normal listening level and the dustcup looks ok, no damage.
I think the ATC original drivers have normal dustcup but not 100% sure.
I think some people use rcf L12p520 that has inverted dustcup on them. Maybe one of the reasons is because not many drivers would fit with that shape of bung?


Edited by needle fx - 02 April 2012 at 5:58pm
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yeah maybe i'm wrong.. the bungs are missing from a lot of phils because they don't fit with some of the drivers.. i do know that. hold onto the bungs! and if you felt like / are able to make up some new ones, there's probably a few people would be interested.
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Originally posted by needle fx needle fx wrote:

Nice first steps forward, thanks again for the input.

Another differences I noticed were the rims of the drivers in different material, they grey ones being more clothy/matt like and also the terminals are push-in in one and soldered in the other.
They are the same mix of drivers in both speakers. Any idea why this could be? 
Different ages of the drivers. The P24 were produced for quite a few years. I've seen at least 3 different version, however all of them with a metal dome.


Edited by Teunos - 02 April 2012 at 10:19pm
Best regards,
Teun.
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Originally posted by needle fx needle fx wrote:


I think the ATC original drivers have normal dustcup but not 100% sure.



Yes,it is a normal dustcap,just a very small one,that only just covers the 3inch coil.

Ditto what everyone else is saying about the RCF's you have there,they all had a silver ally dust cap originally,but due to the age of yours,its probable they have been changed at some point.
Be seeing you.
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Alu dustcaps do tend to disintegrate after a while. One pair of my Phillies also came with small xover network. Maybe that´s what your 'black box' is.
Earplugs Are For Wimps!
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