Picked up my DIY today and initial impressions are really good.
I'm wondering if anyone can confirm something for me in relation to the provided buffers. So far I like the OPA1611 as the op-amp, but I'm torn between the LM49600 and LMH6321 as the buffer. It sounds like the LMH6321 is better on my T1s, but the LM49600 is better on low impedance IEMs. The specs would suggest that this is the case, too. Does anyone know if the LMH49600 will be a problem if used with low impedance IEMs (i.e. 15.9 ohms)?
Also, has anyone found a buffer that's great with a wide range of impedances?
I've been using LME49600 with some low impedance headphones and IEM, so far no problem. From the 3 buffers come with Fiio E12DIY, LME49600 is my favorite so far. BUF634 is actually very2 close with LME49600.
LMH6321 has very poor dynamic and detail with low impedance, sounds very lazy.