av Objektivisten » 2012-09-21 11:53
Sitter tydligen dubbla 14-Bit dacar i den samt lins med svängarmsprincip. CD150 var Philips första 'budgetspelare'.
Soundet från denna spelare skiljer sig från alla andra CD-spelare jag hört faktiskt. Låter mindre 'glaserat' och det musikaliskt utbytet av den är mycket stort. Man börjar ju fundera på hur digitaltekniken har utvecklats egentligen under 30 år?
''In its 14-bit, 4-times oversampling system, a digital filter stage prior to the DAC created three extra samples for each of the original samples. When these extra samples were integrated in the DAC, at four times the original rate, the result was a resolution equal to 16-bit.
As far as the DAC was concerned, the sampling frequency was now 176.4kHz instead of 44.1kHz. This in turn meant that the unwanted frequencies contained in the DAC’s output were much higher too. Now, instead of a steep ‘brickwall’ filter acting at just above 20kHz, and causing problems in the audio band below, the Philips player’s audio output stage needed only a gentle, innocuous analogue filter.
This gave the early Philips players a sonic advantage over ‘16-bit linear’ rivals. Although 14-bit 4-times oversampling was born of necessity, it sounded smoother and less fatiguing. Also contributing to the CD100’s superior performance was Philips’ swing-arm mechanism, as opposed to the linear, radially-sliding ‘sled’ types used by the Japanese makers.''
Pålitlig, Flexibel, Robust
