Directed Electronics 500 Amplifier Controls, Performance, For that half of the amplifier

AMPLIFIER CONTROLS

Refer to Figure 2 for details.

1.	RCA INPUT JACKS - accepts line-		4. BASS EQ - (model 500 only) these
	level outputs from head units or		switches activate an 8 dB bass
	signal sources at voltages from		boost circuit. Use as necessary for
	200 mV to 8 volts.	High-grade	low frequency enhancement.
	shielded or twisted pair RCA cables		5. CROSSOVER FREQUENCY - controls
	are recommended for this input.		the frequency range of the ampli-
2.	GAIN ADJUSTMENT - controls the		fier. Each half of the amplifier can
	gain (input sensitivity) of the		be set independently for optimum
	amplifier. Each control sets the gain		performance.
	for that half of the amplifier.		6. LED INDICATOR - the green Power
3.	CROSSOVER SELECTION SWITCH -		LED lights to indicate normal opera-
	controls the type of filter for each		tion. The green LED will shut off to
	of two on-board active crossovers.		indicate amp shutdown due to
	LPF setting is used for low-pass		short circuit, DC offset, or over-
	(subwoofer) output	frequencies,	current conditions detected by on-
	HPF is used for high-pass (mid-		board protection circuits. Thermal
	bass/midrange) outputs. The FLAT		protection is also indicated by the
	setting is used for full-range or		green LED shutting off.
	mixed stereo/mono applications.

FIGURE 2—AMPLIFIER CONTROLS

© 1999 Directed Electronics, Inc 5