after 3 month I own the NWZ-A15 I'm still with my AKG-K451 on ear headphones...
Too confused about all these comments about external amps, dac, how to connect with a stereo chain etc...
I purchased this player for portable use, what I think it was conceived to, and I use it travelling from home to work and back (by train).
AKG-K451 (32 ohms) are good but not excellent and I'd like to upgrade, but until now I didn't find good suggestions in this forum.
I was quite convinced to purchase Sony MDR-1A but, in the specific forum was asserted they are poor in sound isolating,
so not suited to use in a train.
I know Sennhy Momentum 2.0 over ear are good in sound isolation but when I tried 1.0 with the player I was deceived,
not enough volume...
Actually I know from this forum the output impedance of the Sony is 4 ohm, and, always from this forum the minimum
impedance to be used with should be 32 ohms (4 ohm x 8), is it correct ?
Maybe here the reason I was deceived by Momentum 1.0, wich is 18 ohm ?
Anyway did someone try the 2.0 with the nwz-a15 ?
Some other suggestion for a good pair of over ear really well suited for a portable use without an amp,
for all kind of music but a preference for classical and jazz ?