QSC TouchMix, Карманный справочник

Страница: 16 / 51

28 29 Amplifiers Amplifiers
The XC-3 is an active, 2-way crossover module
that mounts to the rear panel DataPort of select
2-channel QSC amps (DCA,PL2, PL3, CX, ISA). A
3-way crossover can be implemented using the
XC-3’s low-frequency high-pass filter with the LF-3. The LF-3 low-frequency filter, when used with the XC-3
2-way crossover, creates a 3-way active crossover
system. Mounting to the rear panel of select, 2-channel
QSC amps (DCA, PL2, PL3, CX, ISA), the LF-3 is
comprised of two discrete channels with 4th order
Linkwitz-Riley low-pass filters (24 dB/octave slope).
The SF-3 provides subwoofer signal processing
without the need for a conventional crossover.
To conserve cost and rack space, the unit mounts
to the rear panel DataPort of select 2-channel QSC
amps (DCA, PL2, PL3, CX, ISA).
• 4th order Linkwitz-Riley filters (24 dB/octave),
low frequencies routed to channel 1 and highs to channel 2.
• All-pass filter delay for time alignment of low- and high-frequency drivers
• Trim control (0-20 dB attenuation) to balance the frequency bands.
• High-frequency channel offers boosts up to 10 dB for equalizing constant-
directivity horns.
• Delay on each channel for loudspeaker time-alignment
• Trim control (0-20 dB of attenuation) to match levels.
• One amp-mounted LF-3 can support up to three amplifiers (including in
stereo) with XC-3 installed accessories
• 4th order Linkwitz-Riley low-pass filter may be set to 80, 150 or 250 Hz.
• Subsonic filter offers roll-off frequencies in the range 20-50 Hz to prevent
driver over-excursion.
• Trim control (0-20 dB of attenuation) allows balancing the various
frequency bands.
Amplifier Accessories
XC-3 2-way Crossover | SF-3 Subwoofer Filter |
LF-3 Low-Frequency Filter