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Impedance changes with new headphone plug?

post #1 of 8
11/27/11 at 3:06pm
Thread Starter 

Recently the 1/8 plug on my Grado SR-80s broke, so I took it upon myself to solder a new one on.

 

It was my first attempt at soldering, and it was successful, but I've noticed the Grados are noticeably quieter and less bright now than they were before. This may be due to:

 

I changed it to a 1/4 plug

It's not gold plated

My soldering not being as good (?)

 

So I was just curious, which one is likely the culprit here? And also, if anyone knows specifically how much the impedance changes in this case, I'd be curious to know that too.

 

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post #2 of 8
11/27/11 at 4:08pm

a dodgy connection/cold solder joint could explain that.

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post #3 of 8
11/27/11 at 5:56pm

The impedance should not change at all with a plug change.

 

The impedance of Grado drivers frequently varies by a few ohms from sample to sample, but what do you get? 

 

Please measure from tip to sleeve, ring to sleeve, and tip to ring. 

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post #4 of 8
11/27/11 at 8:25pm
Thread Starter 

Measuring from the middle of the insulating rings:

 

Tip is about 3/8''

Ring is 1/4"

Tip to Sleeve is 5/8"

Sleeve is 5/8"

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post #5 of 8
11/27/11 at 8:29pm
Quote:
Originally Posted by Virtuoso80 View Post

Measuring from the middle of the insulating rings:

 

Tip is about 3/8''

Ring is 1/4"

Tip to Sleeve is 5/8"

Sleeve is 5/8"

Think nikongod was referring to the resistance (ohm) when he asked for measurements.  :)
 

 

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post #6 of 8
11/27/11 at 10:53pm

This is my favorite thread in head-fi.

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post #7 of 8
11/27/11 at 11:03pm
Thread Starter 
Quote:
Originally Posted by shadow419 View Post

Think nikongod was referring to the resistance (ohm) when he asked for measurements.  :)
 

 


Oops. Clearly, I'm new to this. It didn't make sense to me that they wouldn't have standardized measurements, I guess that should have been a clue.

 

Of course, like I said, this is the first time I've ever soldered anything. Why would you expect me to have a Multimeter?

 

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post #8 of 8
11/28/11 at 5:15am

A multimeter is one of those things that anyone thinking about diy electronics should have.  No other way to accurately check your work.  If you don't have/own one, I'm sure you could at least borrow one from a neighbor. 

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