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Impedance Up/down converter

post #1 of 7
9/30/09 at 12:50am
Thread Starter 
I just build a headphone impedance Up/down transformer matching converter. It only need permalloy step up/down transformers + 6,35mm Jack x 2. 1 for Input , 1 for output , together with a 6.35mm Plug x 2 Cable.
it can convert high impedance Headphone amps to adapt low impedance & convert low impedance Headphone output (not enough driving voltage to drive high impedance Cans) to drive 300 ~ 600 Ohm headphone.

Do you think this type of adapter need step up/down or only need step down ?
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post #2 of 7
10/4/09 at 11:46am
I was thinking of doing the same. Can you let me know what transformer you are using and where you got it from?

Thanks.
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post #3 of 7
10/5/09 at 9:21am
Thread Starter 
Quote:
Originally Posted by Twangbar View Post
I was thinking of doing the same. Can you let me know what transformer you are using and where you got it from?

Thanks.
I made it by myself. I can offer you a pair of free sample. You only need write a very short review after you Diy your own converter. Please email to sales@audiotailor.com Joe Lau
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post #4 of 7
10/5/09 at 11:41am
What are your winding resistances?

se
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post #5 of 7
10/5/09 at 12:37pm
if you make it step up, cant you just switch the inputs and outputs to have it step down?
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post #6 of 7
10/5/09 at 12:43pm
Quote:
Originally Posted by pistolsnipe View Post
if you make it step up, cant you just switch the inputs and outputs to have it step down?
Generally speaking, yes.

se
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post #7 of 7
10/6/09 at 5:00am
Thread Starter 
Quote:
Originally Posted by pistolsnipe View Post
if you make it step up, cant you just switch the inputs and outputs to have it step down?
Yes ! So I will build it In/Output by a 6.35mm Jack + a cable (Both end with 6.35mm Jack). It can use as step up or step down, just depend on how you connect it.
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