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Author Topic: ADK S51 electronics modification anyone?  (Read 310 times)

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Offline goodcooker

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ADK S51 electronics modification anyone?
« on: May 28, 2019, 05:12:46 PM »

I picked up a pair of the S51 model ADK mics for real cheap on Reverb and I'm thinking I might do the electronics component modification to them. It's just replacing through hole components with new ones supplied in a kit on a roomy circuit board.

Any thoughts?

The capsule is designed along the lines of the U67 capsule, center terminated with a lift in the high end. Not sure if it's dual backplate like the K67 or not.

They are huge and heavy so I'm not likely to take them out to gigs a lot but I used to run the ADK TLs and they weigh a kilo each...
Schoeps MK41 > nBob > PFA || MBHO KA300 > PFA || Sennheiser me40-k2u || ADK S51 || Joly Mod Oktava MK012
Aerco MP2 || Grace Lunatec V2 || RAD MS2 || nBox Platinum
Marantz PMD706 || PMD620

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"Are you the Zman?" - fan at Panic 10-08-10 Kansas City

"I don't know who left this perfectly good inflatable wook doll here, but if I'm blowing her up, I'm keeping her." -  hoppedup

Offline goodcooker

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Re: ADK S51 electronics modification anyone?
« Reply #1 on: June 02, 2019, 12:51:52 AM »
Got these mics today and the circuit board is a little different than the A51 model due to the pad and lo cut switches. Still plenty of room to work but I'm not 100% sure I want to mod them now. They actually sound really good as is. Also surprisingly well matched within .5dB in an informal test.

Used them to record some acoustic guitar, mandolin and electric bass (on a 18 inch Eden cabinet right on the grill) and the tracks sounded really nice with the Aerco, the Grace V2 and even the mushy preamps in my Focusrite interface. Guess I'll take them out for an ontage ORTF jazz recording before I make the final decision.

The only thing I think that would really benefit is that the seller of the mod kits claim that the components are closely matched so for stereo applications they would be better but I don't know if I'm really buying that they match components in a <$20 parts kit - they are probably just saying that based on closer manufacturer tolerances from companies like WIMA, Nichicon, etc....
« Last Edit: June 02, 2019, 10:55:24 PM by goodcooker »
Schoeps MK41 > nBob > PFA || MBHO KA300 > PFA || Sennheiser me40-k2u || ADK S51 || Joly Mod Oktava MK012
Aerco MP2 || Grace Lunatec V2 || RAD MS2 || nBox Platinum
Marantz PMD706 || PMD620

http://www.archive.org/bookmarks/goodcooker

"Are you the Zman?" - fan at Panic 10-08-10 Kansas City

"I don't know who left this perfectly good inflatable wook doll here, but if I'm blowing her up, I'm keeping her." -  hoppedup

 

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