Community VLF Series – Operation Manual - Page 11
HIGH-PASS FILTERS
The use of an external, active high-pass filter to protect the cone drivers from excessive low-frequency
excursion is strongly encouraged. A high-pass filter will eliminate the potential of low-frequency modulation
from wind noise, turntable rumble, stage vibration, and other causes that result in a poorly defined and
‘muddy’ bass response. Additionally, a high-pass filter will avoid wasting amplifier power by keeping the
amplifier from attempting to reproduce frequencies below the loudspeaker’s intended operating range. The
table below shows the recommended filter settings:
Model
High-Pass Filter
VLF208 Subwoofer:
55 Hz, 24 dB/octave
VLF212I Subwoofer:
48 Hz, 24 dB/octave
VLF212P Subwoofer:
48 Hz, 24 dB/octave
CONNECTING THE AMPLIFIER TO THE
LOUDSPEAKER: VLF208 AND VLF212I
The VLF208 and VLF212I come with two methods of connecting the amplifier to the loudspeaker. One is an
industry standard NL4 type locking connector, and the other is a terminal strip. These two connectors are
wired in parallel with each other, on all models.
Figure 10: VLF208 Input Panel
The loudspeaker is intended to be connected directly to the amplifier.
