jkim

It seems that their photo shows proper wiring. I like the cable splitting near the 4.4mm connector, too. You can easily check the ground...

I really don't understand why iFi used a 4.4mm connector for line-outs---space saving, for sure, but still not good. Anyway, you will...

I haven't noticed any passthrough on my L70 yet, and it would be news to me if it did. But what's wrong with controlling the volume of...

Excellent point.

If you need pass-through, just go with the L50. Its HP output is transparent and has far more than enough power for the HE400SE.

Well, I guess it's the case, those dongle probably had flaws in powers supply or firmware, as said my technical knowledge is limited and...

E1DA (aka Ivan) mentioned this possibility on the description page of his portable DAC #9039S: Simplified DAC tests let manufacturers...

If you really want to try a stack of separate DAC & HP amp, the JDS Labs Atom Amp 2 is a good choice. As you may already know, if you...

Without knowing the exact measurement settings or the Temptec's design surrounding the DAC chip, it is difficult to give a definite...

That is strange. I just remeasured both the L70 and A70 Pro's XLR line outputs at volume knob levels from -0 to -10 dB. Both preamps are...

A good suggestion. With respect to noise performance, the Topping L30 II is even better. But the OP should first decide whether he needs...

Unless you have a measurement setup, comparing multiple amps connected to your current DAC is the only way you can find out.

Then, you have to resolve one critical thing. Is the noise you hear generated from the ZenDac3's internal DAC output OR from its...

See my review. I opened it and found the DAC chip is indeed the ES9016K2M. Not a bad chip, just not the current state of the art.

Welcome to ASR! You didn't say what DAC you're going to use with a headphone amp.