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Q: Source - amp - resistance adapter - cans

post #1 of 4
7/29/11 at 9:58am
Thread Starter 

The primary purpose of a resistance adapter is to increase the impedance of the cans, yes?

 

I am currently looking to amp my Sennheiser HD438s with the PA2V2.

The HD438s have a low 32ohm impedance. Will adding a resistance adapter to increase the impedance

of the headphones improve the sound quality of the cans, when I run it through an amplifier?

What is/are the purpose(s) of increasing the impedance of full sized headphones?

 

Couldn't find any useful info on the Search engine regarding this.

 

Thanks darthsmile.gif

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post #2 of 4
7/29/11 at 1:51pm

 

It's not so much increasing the impedance of the headphones, but rather effectively increasing the output impedance of the amplifier.

 

Some feel their headphones sound better when driven from a source impedance that's higher than their amplifier's output impedance.

 

se

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post #3 of 4
7/29/11 at 7:36pm
Thread Starter 


I noticed you said "some feel". So I guess it doesn't make much of a difference, in your personal opinion?

Quote:
Originally Posted by Steve Eddy View Post

 

It's not so much increasing the impedance of the headphones, but rather effectively increasing the output impedance of the amplifier.

 

Some feel their headphones sound better when driven from a source impedance that's higher than their amplifier's output impedance.

 

se



 

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post #4 of 4
7/29/11 at 8:07pm

 

Well, it's not so much that it doesn't make much difference. It certainly can make a significant difference depending on the particular headphones and how much resistance you're adding. What I meant by "some feel" was with regard to subjective improvement. In other words, some feel it sound better, some feel it sounds worse.

 

se

 

 

 

 

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