DA301L DA704L ULTRA SLIM SERIES INSTALLATION / OWNER'S MANUAL Mobile Power Amplifiers
INSTALLATION Preparation Please read entire manual before installation. Due to the technical nature of amplifiers, it is highly recommended that your Dual amplifier is installed by a professional installer or an authorized dealer. Before You Start • Disconnect negative battery terminal.
INSTALLATION Connection Descriptions NOTE: Be sure to follow specific instructions included with your amplifier installation kit (not included with this amplifier). The information below should be used as a general guideline only. Power Wire (+12V) • Disconnect negative battery terminal before proceeding. Consult a qualified technician for instructions if you are unsure. • Plan wire routing before cutting any wires to length.
INSTALLATION Audio Inputs and Controls DA301L 3 1 6 5 7 DA704L 1 4 2 3 4 1 2 1 Gain 5 Subsonic Filter 2 Crossover Mode 6 Bass Boost 3 High & Low Level Inputs 7 Low Pass Filter 4 Crossover Frequency Control
INSTALLATION Power and Speaker Connections DA301L 1 2 3 4 5 DA704L 1 2 3 4 5 1 Speaker Connections 4 Remote Turn On 2 Fuse 5 Ground Connection 3 +12VDC Battery Connection 5
INSTALLATION Typical Wire Routing MAXIMUM GROUND FUSE No more than 36" (1 meter) 12V BATTERY 12V DC (Power) RCA CABLES SPEAKERS 2-8 ohms REM (Remote Turn On) Main Power Connections Connect +12V, GND and REM wires accordingly. A suitable fuse MUST be installed on the +12V lead within 18" of the battery for protection of the vehicle’s electrical system. 6 Fuse Rating Power/Ground Wire Size When replacing fuses, make sure new fuse is the correct type and amperage.
INSTALLATION Amplifier Connections 4 Speakers (stereo) Speaker Connections Connect speaker wires observing polarity. The minimum impedance load for the DA301L and DA704L is 2 ohms. Use of loads lower thanthese is not recommended and may cause amplifier damage. (Front) DA704L speaker connections shown (Rear) Typical Stereo Wiring (2 ohms minimum) Input Signal Connections Low Level Input (RCA) Low level (RCA) input signal is preferred for best performance.
INSTALLATION Configuration/Setup Input level Control Crossover Mode The input level control (gain) is used to obtain the best possible match between the head unit audio output and the amplifier input. Begin by turning the input level control fully counterclockwise. Next, turn up the head unit volume control around 3/4 of the way up. Adjust the input level control clockwise until audible distortion is heard, then slightly counterclockwise to provide the best match. Repeat for all input level controls.
INSTALLATION Troubleshooting Problem Cause Action +12V wire not connected or incorrect Check connections for proper voltage Unit will not turn on voltage.
INSTALLATION Specifications DA301L Power Output (14.4VDC, 20Hz ~ 250kHz): •150 Watts RMS x 1 channel @ 4 Ohms •350 Watts RMS x 1 channel @ 2 Ohm Peak Music Power Output: 700 Watts Signal to noise ratio: >80dB (THD < 0.5% @ 4Ω, 14.4V) Frequency response: 20Hz -250Hz (0, -3dB) Amplifier dimensions: 1.5” x 3” x 5.9” (13 x 76 x 150 mm) DA704L Power Output (14.
INSTALLATION One-Year Limited Warranty This warranty gives you specific legal rights. You may also have other rights which vary from state to state. Dual Electronics Corp. warrants this product to the original purchaser to be free from defects in material and workmanship for a period of one year from the date of the original purchase. Dual Electronics Corp.
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