ATL twotwo sub1, Руководство пользователя

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PMC’s
twotwo
active subwoofers feature DSP-based user-equalisation options. These comprise an
adjustable low-pass filter to determine the frequency range over which the subwoofer operates,
with an adjustable slope which allows perfect integration with the low-frequency response of the
stereo satellite speakers. A single-band parametric equaliser can be used to compensate for single
resonances or dips in the room response, assisting with in-room alignment.
The low-pass filter can be switched off,
or configured with a slope of 6, 12, or
18dB per octave, and with turnover
frequencies of 50, 80,120,150, or 200Hz,
as illustrated in this diagram.
As a starting point when using any
twotwo
active subwoofer with any model of
twotwo
satellite
monitor, a low-pass filter setting of 80Hz should give the best integration. However, you may adjust
this setting as room conditions and personal preferences dictate.
The centre frequency of the single-band parametric equaliser (PEQ) is adjustable between 20Hz and
150Hz (in 5Hz increments). The bandwidth is variable between Q=1 to 8 in 0.5 steps (equaivalent to
bandwidths of 1.4 to 0.2 octaves). The PEQ gain can be adjusted between a boost of up to +7.87
and a cut of up to -8dB.
A separate high-pass filter option is included for bass-managment of the output signals which may
be passed on to satellite loudspeakers. The high-pass filter turnover frequency and slope mirrors the
selected low-pass filter settings.
User EQ Options
200Hz 150Hz 120Hz 80Hz 50Hz
Off
6dB/Oct
12dB/Oct
18dB/Oct
+8dB
0dB
-8dB
PEQ Gain
20Hz 150Hz
Q=8
Q=1
PEQ Frequency