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two headphones, one amp

post #1 of 7
9/29/03 at 3:41am
Thread Starter 
well, has anyone connected two headphones to one amp successfully (with no loss of sound quality)?

i mean two different headphones with different impedances..

like a rat shack stereo splitter and then an in-line attenuator?
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post #2 of 7
9/29/03 at 3:57am
i'm not sure about an attenuator but i'm pretty sure if you had a splitter and used an adaptor with a resistor like the er-4p -> s adaptor things would probably work out. i guess an attenuator would work too but i have no idea how they function.
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post #3 of 7
9/29/03 at 12:59pm

Re: two headphones, one amp

Quote:
Originally posted by loveheadphones
well, has anyone connected two headphones to one amp successfully (with no loss of sound quality)?

i mean two different headphones with different impedances..

like a rat shack stereo splitter and then an in-line attenuator?
Get one of these amps, the two headphone sockets drive 2 pairs of differing impedance phones with ease :-)

http://freespace.virgin.net/borders....insleyhood.htm
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post #4 of 7
9/29/03 at 2:34pm
I see no reason why it would not work if you have an amp with enough reserve to power multiple headphones. I do know that a splitter works fine for multiple headphones of similar impedances. Adding an attenuator should not cause any problems.
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post #5 of 7
9/29/03 at 7:07pm
Grado has an adapter (you can get it from Headroom) that works fine with different headphones. I have the Grado RA1 amp and drive my Senn HD590s and Grado SR125 with ease and no distortion or loss of quality of sound at all. At least not to my ears.

The trick is to find out how to wear to headphones at once! (Just kidding!)
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post #6 of 7
9/29/03 at 9:12pm
The biggest problem is if the headphones have different sensitivities. During a certain listening test, whoever had the HD600's were stuck listening more quietly than anyone else (I think the other headphones were Grado somethings). And that was using a headphone amp that was capable of driving four headphones (we used three).
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post #7 of 7
9/29/03 at 9:21pm
Thread Starter 
thanks for the correction - i think the impedance doesn't matter, it's the differing sensitivities

so i guess there shouldn't be much sonic difference just because the parts i'm using in the chain are not that big.. just a tiny splitter and tiny wire with attenuation (like a volume controller you can get at radioshack)

i take it there's no custom made stuff like this.. hopefully i can just find a really short cord with a dial
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