Directed Electronics XA-6004 - Manual (Page 8)

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LLoow w--PPaassss FFrreeqquueennccyy CCoonnttrrooll (rear) -
adjusts the frequency
(50Hz–500Hz) of the low-pass
crossover.
HHiigghh--PPaassss FFrreeqquueennccyy CCoonnttrrooll (rear) -
adjusts the frequency
(50Hz–500Hz) of the high-pass
crossover.
6. RRCCAA IInnppuuttss (rear) - accepts RCA
input from a source unit, preampli-
fier, or equalizer.
7. PPRRTT (LED red) - illuminates when
the PRT (Protection) function is
active. Activates to protect the
amplifier when the temperature is
too high, the output has a DC
offset, a short was detected on the
output, or the amplifier power
cables have been improperly
connected (reverse power). If the
temperature, DC offset, or short
condition has cleared after approxi-
mately 10-seconds the amplifier
will automatically recover.
8. CCrroossssoovveerr SSw wiittcchh (front) - activates
low pass crossover, full (all pass),
or high pass crossover.
9. BBaassss (front) - sets the bass boost of
the high-pass crossover to 0, or 8dB
of boost.
10. BBaassss (rear) - sets the bass boost of
the high-pass crossover to 0, or 8dB
of boost.
11. CCrroossssoovveerr SSw wiittcchh (rear) - activates
low pass crossover, full (all pass),
or high pass crossover.