McIntosh MC901

17
Figure 19– Roll-Off for High Pass Filter
Frequency (Hz)
Decibels
The lines from left
to right represent the
Crossover Points as
noted on the VACUUM
TUBE HIGH PASS
FILTER Knob:
• 100 (A)
• 130 (B)
• 180 (C)
• 250 (D)
• 300 (E)
• 400 (F)
• 550 (G)
• 800 (H)
• 1000 (I)
(A)
(B)
(C)
(D)
(E)
(F) (G) (H) (I)