Directed Audio 250d - Amplifier Controls

5
© 1999 Directed Electronics, Inc
1. RCA OUTPUT JACKS - use these
jacks to route the input signal to
another amplifier.
2. RCA INPUT JACKS - accepts line-
level outputs from head units or
signal sources at voltages from
200 mV to 8 volts.
3. GAIN ADJUSTMENT - controls the
gain (input sensitivity) of the
amplifier.
4. PHASE INVERT SWITCH - controls
the output phase of the amplifier.
The signal is inverted with the
switch set to 180.
5. CROSSOVER FREQUENCY - controls
the frequency range of the ampli-
fier.
6. BASS EQ - This switch activates an
8 dB bass boost circuit. Use as
necessary for low frequency
enhancement.
7. LED INDICATOR - the green Power
LED lights to indicate normal opera-
tion. The green LED will shut off to
indicate amp shutdown due to
thermal, short circuit, DC offset, or
over-current conditions detected by
on-board protection circuits.
AMPLIFIER CONTROLS
Refer to Figure 2 for details.
FIGURE 2—AMPLIFIER CONTROLS