ezkcdude;232666 Wrote: > I think these measurements can provide useful information for buyers. > For example, take a look at the 1 kHz and 10 kHz square waves for the > very expensive ($26,600/pr) mbl 9007 monoblocks (tests done by John > Atkinson of Stereophile)
I'm not saying the MBLs aren't better, but these are extremely misleading plots and unless the customer has a thorough understanding of what is being illustrated here, it looks like the Sonic Impact performs ridiculously poorly. But in fact, the only apparent difference between the two devices is their frequency response at _supersonic_ frequencies. In fact, I could contrive an amplifier circuit that would sound terrible but produce these square waves perfectly. So what do you feel is informative about these plots? For an amplifier I would much rather see an FFT of a sine wave stimulus, or a plot of THD+N measured at many frequencies from 20Hz to 20KHz. These scope traces alone really say nothing about how either of these amps will actually sound, but maybe I am missing something. Did the article describe the rationale for these tests? -- seanadams ------------------------------------------------------------------------ seanadams's Profile: http://forums.slimdevices.com/member.php?userid=3 View this thread: http://forums.slimdevices.com/showthread.php?t=38813 _______________________________________________ audiophiles mailing list [email protected] http://lists.slimdevices.com/lists/listinfo/audiophiles
