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1/4mm input portable headphone amp?

post #1 of 7
Thread Starter 
Hey guys. I'm looking for a portable headphone amp to use with my new Grado 225is. However, all the amps I've looked at so far have a 1/8mm input, which won't work, as the 225is have a 1/4mm jack. The amp must be under $100. Thanks!
post #2 of 7

(1) your safest bet would be to use a 1/4" to 1/8" adapter. (2) or cut the current plug and solder a 1/8" plug to the cable. (3) or look for a MOT to build you a mini3 or cmoy with a 1/4" out.


Edited by JamesMcProgger - 8/13/11 at 9:58am
post #3 of 7

I'm building a cmoy right now. All the circuits and wiring are done and it sounds awesome. The box is still being painted. I used a 1/4 inch headphone jack cuz i plan to get bigger cans later on. For the input jack, from the source, is still an 1/8 inch jack. I'd let it go for a lot less than 100$. PM me if you want the full details.

post #4 of 7
post #5 of 7

That's not input, that's output.

post #6 of 7

hes looking for output, to plug in headphones

post #7 of 7

The title says input and the first post compares the SR225 1/4in plug to the 3.5mm jacks on the amps he looked at, so I clarified that what he's looking for is a 1/4 output.

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