Quote:
Originally Posted by limey
You quote in your review that 'The Sony is unsuitable for amping and higher-end headphones'
Did you try the line out from the Sony via an amp?
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Yes. This was actually the test which took longest to do, and initially had me the most flabbergasted before I had to accept the results. And actually, I should have added a word there which is "relatively unsuitable". I initially approached the Line Out test believing that any differences would be slight, and that if any, Hi-MD might have the slight lead.
I did this test not for detailed inclusion in the review, but for reference later for Head-Fi specific purposes... after all, only we amp. To me, and to most Head-Fi members, I would assume that the purpose of amping is to take advantage of a high quality signal and amplify it for a (usually) premium headphone. I would say that looking at many people's semiportable configurations, they do insist on maximum purity of source combined with a manageable degree of portability. To this end, although somewhat overkill I used the Stax SRM-007t amp with the SR-007 headphone, a Supermini & ATH-W2002, and some other combinations. The crucial element of the test was that the audio files on each player, recorded at lossless or uncompressed, were compared with the sound of the original CD being played out of the SCD-XA777ES SACD player. Each source was marked on fidelity to the original (on both tonal and to a larger extent, technical comparison), using the output of the XA777ES as the benchmark. To that end, it was a much more stringent test than the playing about with the headphone output of each, and I approached the test with much less of a tolerance of deviations than the headphone output, but still expecting both to be similar.
What caused me to frown and check all the wiring on the Hi-MD unit several times was that the sound was staggeringly (from an audiophile point of view)
unfaithful to the original recording. The iPod on the other hand made a fair stab at the original and achieved good fidelity. I very much doubt this is a codec issue. I believe this is a problem with the "High Definition" amp and the way the sound is passed through it.
While the headphone out is a matter of debate, whether the tweakability and the default flavour of the headphone out of the Hi-MD unit is 'better' (read: more pleasing) than the iPod, the Line Out issue is not one of debate. Hi-MD is clearly worse than the iPod when deployed in the "Head-Fi maximal" manner.