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Thread Starter 
Correction D12 not D10

iriver H140 and ibasso D12, Grado RS-1's with Sennheiser HD414 pads. Optical connection. The ibasso comes with some op-amps. I don't want a lot more, just a bit.

I find bass a bit lacking. any have experience with op-amp kit which might offer more low end? You get one extra op-amp in the little box.

Stock ibasso D12 not opened it up.
Edited by fatbottom - 9/15/12 at 3:52am