Directed Electronics 500 User Manual

Page 7

RCA INPUT JACKS - accepts line-

level outputs from head units or
signal sources at voltages from
200 mV to 8 volts. High-grade
shielded or twisted pair RCA cables
are recommended for this input.

GAIN ADJUSTMENT - controls the
gain (input sensitivity) of the
amplifier. Each control sets the gain
for that half of the amplifier.

CROSSOVER SELECTION SWITCH -

controls the type of filter for each
of two on-board active crossovers.
LPF setting is used for low-pass
(subwoofer) output frequencies,
HPF is used for high-pass (mid-
bass/midrange) outputs. The FLAT
setting is used for full-range or
mixed stereo/mono applications.

BASS EQ - (model 500 only) these
switches activate an 8 dB bass
boost circuit. Use as necessary for
low frequency enhancement.

CROSSOVER FREQUENCY - controls
the frequency range of the ampli-
fier. Each half of the amplifier can
be set independently for optimum
performance.

LED INDICATOR - the green Power
LED lights to indicate normal opera-
tion. The green LED will shut off to
indicate amp shutdown due to
short circuit, DC offset, or over-
current conditions detected by on-
board protection circuits. Thermal
protection is also indicated by the
green LED shutting off.

AMPLIFIER CONTROLS

Refer to Figure 2 for details.

FIGURE 2—AMPLIFIER CONTROLS

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