SACD vs. CD - Unfair competition?

[Thomas_A]

Are you applying a line level low pass filter to the tweeter(22khz is likely sufficient), seperately amplifying and crossing at the relevant frequency to the supertweeter? I did not see a specification such as this in your test description.

Please refer to:

Detection threshold for tones above 22 kHz

Preprint Number: 5401 Convention: 110 (April 2001)

Authors: Kiryu, Shogo; Ashihara, Kaoru -Chris

Wmax, there will be no additional supertweeter. The monitor system that usually is used during testing has a f response 20 Hz - 25 kHz ± 1 dB at listening position, and the tweeter continues, reasonably linear, to at least 45 kHz.