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Sterling Audio ST55 mods?
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ericsvizeny
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#1
10th January 2012
Old 10th January 2012
  #1
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Sterling Audio ST55 mods?

Hey everyone,

I'm looking into modding my Sterling Audio ST55. I can't seem to find much information on the web about modding these mics. I have attached some pictures of the insides. Any suggestions are welcome.

Thanks,
Eric
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21st May 2012
Old 21st May 2012
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Quote:
Originally Posted by ericsvizeny View Post
Hey everyone,

I'm looking into modding my Sterling Audio ST55. I can't seem to find much information on the web about modding these mics. I have attached some pictures of the insides. Any suggestions are welcome.

Thanks,
Eric
I just got one of these....curious about mods too. I guess the answer is no though lol.
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#3
21st May 2012
Old 21st May 2012
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When I mod these mics I upgrade all of the capacitors. Start with the 1000pf and change that to a polystyrene. The capacitor between R7 & R9 I change to a 1uf Polypropylene. The 2 red/brown film caps I change out with Wima or Philips film caps. The 47uf by R3 I use a Nichicon Muse or other high grade capacitor. All of the other electrolytic capacitors I use Panasonic, Nichicon, Elna, or Rubycon.

I also do some proprietary tuning to the circuit to "tame" the high end.










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#4
14th June 2012
Old 14th June 2012
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Have u heard of these mods? They're actually for the GT-55 (same mic?) and I found em on a diff forum:

1) Remove the resonator disc (carefully).

2) Install a trimpot between the resistor and source voltage on the FET to balance the microphone pair with each other. I found a 10K trimmer bringing the drain voltage to around 11 volts sounded best to me.


Also, how would u guys say that the mod affects the sound? Any mics to compare it to after?

How much someone wanna charge to do the mods if I send u my ST55? I dont have too much time to get into this and I feel weird visiting my local electronics guy since I wouldn't date his Japanese immigrant friend lol.
#5
1st September 2012
Old 1st September 2012
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Willing to pay to get this mic modded. PM me if ur interested with price, etc...

THANKS!!!
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