User manual

C6/C690 Data Sheet C6
Frequency response correction of HFA circuit
(only available with E-PAC)
C6 Isobar diagram
HFA setting
In HFA mode (High Frequency Attenuation), the HF response of the
C6 system is rolled off. The HFA circuit configures the C6
loudspeakers to provide a natural, balanced frequency response
when a unit is placed close to listeners in near field or delay use.
High Frequency Attenuation begins gradually at 1 kHz, dropping
by approximately 3 dB at 10 kHz. This roll-off mimics the decline in
frequency response experienced when listening to a system from a
distance in a typically reverberant room or auditorium.
Dispersion characteristics
The diagrams below show dispersion angle vs frequency plotted
using lines of equal sound pressure (isobars) at -6 dB and -12 dB.
The nominal 60° horizontal dispersion is maintained from 20 kHz
down to 2 kHz.