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Posts by nc8000

I don't se anybody implying that you have bought the wrong thing, just one saying what he thinks is a great phone that the ZX2 drives well. In my experience ZX2 drives Ultrasone Signature Pro very well. PM3 generally get very good reviews as well.
To go from the speaker taps you need 4 wires all the way to drivers (2 each side just like you would with speakers) so anything with a standard single ended plug can't be used as is
If the stock cable has 4 wires all the way to the trs plug it will be possible, if not you'll need a custom aftermarket cable
Jan Meier's definition of active controlled ground in his Quickstep amp is somewhat different as he does his stuff with trs. What matters is that all these implementations are an improvement over single ended
To me it makes a noticable difference that I find worth it
I call it pseudo balanced as it does not have the inverter to produce R+, R-, L+, L- but "only" R+, R0, L+, L0. However going from trs to trrs gives much the same feeling as going from single ended to balanced on my former SR71-B amp, you just don't get the extra power you normally get from fully balanced
Using trrs does not give any extra volume, it simply gives a seperate ground connection to each driver in place of the common ground on trs. This reduces crosstalk between channels resulting in a cleaner signal with less noise wich in turn gives a blacker background and more life to the sound.No enhacements to activate on ZX2 (rather try to disable the sound enhancements app as described earlier in this thread).
You can't in general say that ZX2 can't drive full size cans, the size of a headphone has no relation to how hard it is to drive. However more power would be welcome
The bottom one is probably a Meier Quickstep amp
My EU unit with the sound enhancements app disabled playing flac files with the stock player app is at 20-25% with JH13, 35-40% with Sig Pro and 60% with HE-500 (wich is loud enough but not optimally driven).
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