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Directed Audio 750d 1500d - User Manual

Directed Audio 750d 1500d
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models
750d
1500d
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Summary

Limited Two-Year Consumer Warranty

Features

Safety Warnings

Installation Guidelines

Front Panel Connections

RCA Input Jacks

Accepts line level audio signals from head units or processors.

RCA Sync Out;Slave In Jack

Used for linking amplifiers in master/slave configurations.

RCA Bridge Output Jack

Outputs a signal for bridged amplifier configurations.

Slave;Master Switch

Selects the amplifier's role (master or slave) in linked systems.

Remote Sub Level Control

Connects to a remote knob to adjust subwoofer volume.

Rear Panel Connections

Sub Out Terminals

Connect subwoofers to these terminals for audio output.

Status LEDs

Indicates amplifier operational status and protection modes.

Power Fuses

Protects the amplifier from electrical damage.

(+) 12 Volt Power

Main power input connection for the amplifier.

Remote Turn On

Activates the amplifier when receiving a remote turn-on signal.

Ground

Connection point for the amplifier's ground to the vehicle chassis.

Top Panel Controls

Input Gain Adjustment

Sets the amplifier's sensitivity to match the source unit's output.

Crossover Frequency Adjustment

Adjusts the low-pass crossover point for precise system tuning.

Subsonic Frequency Switch

Selects subsonic filter cutoff frequency, attenuating low bass.

Bass EQ Switch

Provides an 8dB boost for the subwoofer output.

Sub Phase Switch

Inverts the subwoofer output phase by 180 degrees.

Top Panel Features

Control Panel Cover

Cover protecting the amplifier's top panel controls.

Remove;Install Cover

Instructions for removing and installing the control panel cover.

Speaker Wiring Diagrams

Combining Amplifiers

Parallel Synced Gain

Links amplifiers master/slave for level matching and independent subwoofers.

External Synced Bridged

Links amplifiers master/slave for common subwoofers using bridged output.

Parallel Synced Gain Connections and Settings

External Synced Bridged Connections and Settings

Multiple Amplifier Combinations

Crossover and Gain Adjustment

Specifications

Directed Audio 750d 1500d Specifications

General IconGeneral
Channels1
RMS Power at 4 Ohms750W
RMS Power at 2 Ohms1500W
Signal-to-Noise Ratio95dB
Input Sensitivity200mV - 6V

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