Queen6
1000+ Head-Fier
Maybe this is why I don’t hear much of a difference in sound quality with the DMP-WM1 FEv2 firmware from the stock firmware because I am using the standard 3.5mm headphone jack.
I have been trying to buy a balanced 4.4mm cable for my Beyerdynamic T5P to plug into the balanced jack of my WM1A. I have tried emailing custom cams about a balanced cable but still awaiting a reply.
Safe to say the that they wont sound worse for the additional power on 4.4, likely offering more presence & slam. Just the nature of the beast as most DAP's tend to offer more performance on the balanced output.
Have you tried High Gain on the 3.5 SE, equally @32 Ohm the WM1A will only be pushing approx. 31mW, on the 4.4 Balanced the output will be doubled, while on the 3.5 SE without High Gain a rather low 12mW. A lot is also determined by the HP/IEM efficiency which doesn't seem too bad at all with the T5P. If you have the ability might be worth A/B the T5P with a source that has variable output power as FEv2 is certainly big uplift versus the stock Sony 3.02 FW.
Q-6