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2.4 Operation- Built-in Crossovers
UHC5, UHC4, UHC2UHC5, UHC4, UHC2-- CROSSOVER SELECTION
The UHC UHC amplifiers have built-in low-pass and high-
pass crossovers for bi-amplifying your system. Select
"FULL, LPF, or HPF" by moving the position of
the slide switch for each pair of channels. Selecting
"FULL" defeats the crossover functions
UHC5, UHC4, UHC2UHC5, UHC4, UHC2-- FREQUENCY ADJUSTMENT
After selecting the crossover function, adjust the low pass or
high pass frequency with a small screwdriver through the
opening marked “FREQ.”. Turn CW to set to a higher
frequency, CCW to set to a lower frequency.
UHC5UHC5- SUBWOOFER CHANNEL
Use a small screwdriver to adjust the low pass frequency through the
opening marked “SUBWOOFER, FREQ.”
2.5 Operation- Protection Circuits and
L.E.D. Indicators
“PWR.” L.E.D. INDICATOR- Provides a visual indication that
the amplifier is turned on.
“PROT.” L.E.D. INDICATOR- Provides a visual indication
that a problem exists and the protection circuitry has protected the
amplifier by shutting it down. Turn the system off and correct the
problem before turning the system back on.
THERMAL PROTECTION- The amplifier will shut down if its
temperature exceeds a safe operating level. The amplifier will remain off
until it cools to a safe operating temperature. Exercise care, the exterior
of the amplifier may get uncomfortably hot to the touch before shutting
down.
OVERLOAD AND SHORT CIRCUIT PROTECTION- The amplifier
will shut down if a short circuit condition exists, or if electrical current
demands exceed safe levels.
D.C. OFFSET PROTECTION- The amplifier will shut down if an
unsafe D.C. offset condition exists.
FUSE PROTECTION- A blown fuse indicates a
problem that should be corrected before the fuse is
replaced. Always replace with the same value fuse.
Never substitute a larger value fuse.
CROSSOVER
FULL-LPF-HPF
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