Can this be doped ?

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karatestu
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Can this be doped ?

Unread post by karatestu » Wed Feb 22, 2017 4:56 pm

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It is a 5" Mordaunt Short mid/bass out of a pair of MS902S small bookshelf speakers.

There is no dust cap the cone is continuous .

Thanks, Stu
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Daniel Quinn
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Re: Can this be doped ?

Unread post by Daniel Quinn » Wed Feb 22, 2017 5:00 pm

What is it made off ?
Even a stroke didn't result in me liking AOS

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Dr Bunsen Honeydew
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Re: Can this be doped ?

Unread post by Dr Bunsen Honeydew » Wed Feb 22, 2017 5:09 pm

Not a clue, would have to look at it to judge.
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karatestu
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Re: Can this be doped ?

Unread post by karatestu » Wed Feb 22, 2017 5:30 pm

I have no idea what it is made of..........goes off to google it
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Daniel Quinn
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Re: Can this be doped ?

Unread post by Daniel Quinn » Wed Feb 22, 2017 5:57 pm

It is made of aluminium cpc , which I understand is aluminium mixed with other metals. may be problems .

doc uses bison kit , the driver will not be porous and thus the glue may not take .

Bison is solvent based , this may react with the metal ,it will presumably be very thin.

The docs uses the dust cover and voice coil as a natural way of ensuring more damping is applied to the centre of the driver . This is not possible . I have no idea is an even coat of the material would be okay .
Even a stroke didn't result in me liking AOS

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karatestu
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Re: Can this be doped ?

Unread post by karatestu » Wed Feb 22, 2017 6:07 pm

Thanks Daniel,

I had failed to find any info on the driver. I will not bother with this one. There is enough to do on my hifi list anyway.

Stu
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Dr Bunsen Honeydew
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Re: Can this be doped ?

Unread post by Dr Bunsen Honeydew » Wed Feb 22, 2017 6:37 pm

Give it a joint and see if it makes better music.

Doping, get it :happy-smileyflower:
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karatestu
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Re: Can this be doped ?

Unread post by karatestu » Wed Feb 22, 2017 7:29 pm

:obscene-smokingjoint: :obscene-smokingjoint: :clap:
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karatestu
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Re: Can this be doped ?

Unread post by karatestu » Tue Aug 08, 2017 9:03 am

I am going to have a go at doping this with bison kit.

The crossover of these speakers are already minimal - single series inductor on mid/bass & 2.2uf + 1.2uf in parallel (3.4uf) on the tweeter. If I could get rid of the inductor that would be good. The 3.4uf could be replaced by a 3.3uf Russian pio I got from ebay and maybe a series padding resistor to suit.

Thinking of trying to dope the tweeter also with a very thin coat of plastidip to the entire metal dome. Having not done any doping before this could go seriously tits up - especially the tweeter. :shock:
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Dr Bunsen Honeydew
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Re: Can this be doped ?

Unread post by Dr Bunsen Honeydew » Tue Aug 08, 2017 9:14 am

You only really learn by doing.
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