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  PRE-AMP PANEL

INPUT

Used for connecting RCA preamp 

signal cables from the source unit to 

the amplifier. 

PWR LED

Indicates the amplifier is grounded, 

and rec12V and REM power.

PRO LED

Indicates a general malfunction due 

to speaker short, faulty connection or 

thermal protection.

GAIN

Matches the output voltage of the 

source signal to the amplifier’s 

input section. 

SUBSONIC

Controls the high pass cutoff point for 

the speaker outputs. This helps to 

eliminate extremely low frequencies 

that can waste amplifier power and 

cause damage to your subwoofers.

REMOTE

This port is for connecting the remote 

subwoofer control. 

LPF

Controls the low pass cutoff point for 

the speaker outputs.

OUTPUT MASTER/ INPUT SLAVE

This switch enables the STRAP or 

LINK function when connecting two or 

more DM SERIES amplifiers.

IN

Used when Strapping or Linking DM 

Series amplifiers. Connects to the 

OUT RCA terminal.

OUT

Used when Strapping two DM 

SERIES amplifiers. Connects to the 

IN RCA terminal.

GND

Connect to a ground wire going 

directly to the chassis of your 

vehicle. Minimum cable size is 

0 gauge. 

REM

Connect to a sw12V 

cable. 

+12V

Connect to a fused positive cable 

(+12V) from the battery. Minimum 

power cable size is 0 gauge.

SPEAKER OUTPUT TERMINALS

Connect to the speaker's + and - 

terminals. Minimum suggested 

speaker cable size is 12~10 gauge. 

DM Series amplifiers have two + and 

two - terminals for easier connection 

of multiple speaker cables. Minimum 

impedance is 1 ohm. 

DD AUDIO  /

  

CLASS D MONOBLOCK AMPLIFIER  /

  

4

CONTROL AND CONNECTION FOR 

DM SERIES AMPLIFIERS

Summary of Contents for DM1500

Page 1: ...OWNER S MANUAL DM1500 DM2500 CLASS D MONOBLOCK AMPLIFIER...

Page 2: ...ith the goal of being the best amps on the market for everyone from the everyday enthusiast to the hardcore competitor The DM Series will be the soul of your audio system delivering clean powerful aud...

Page 3: ...find your state has laws governing the volume of an audio system in a car Please be aware of all local and state laws in your area So be smart and behave yourself As much as possible DM1500 DM2500 SER...

Page 4: ...B 85dB 150 150 4V 0 1V 4V 0 1V Y Y 0 0 10 10 13 5x7x2 18x7x2 340x175x55 450x175x55 Test Voltage 14 4V Channels Continuous Wattage 4Ohm 2Ohm 1Ohm Dynamic Wattage Maximum Current Draw Frequency Response...

Page 5: ...utputs This helps to eliminate extremely low frequencies that can waste amplifier power and cause damage to your subwoofers REMOTE This port is for connecting the remote subwoofer control LPF Controls...

Page 6: ...ble 12V from the battery Minimum power cable size is 0 gauge SPEAKER OUTPUT TERMINALS Connect to the speaker s and terminals Minimum suggested speaker cable size is 12 10 gauge DM Series amplifiers ha...

Page 7: ...ier to the head unit and set its OUTPUT MASTER INPUT SLAVE switch to the OUTPUT MASTER position 2 Set the SLAVE amplifier s OUTPUT MASTER INPUT SLAVE switch to the INPUT SLAVE position 3 Connect the M...

Page 8: ...STRAP MODE CONNECTION Continued DD AUDIO CLASS D MONOBLOCK AMPLIFIER 7...

Page 9: ...re or have questions about your charging system have it tested by a professional technician to determine its capability DD AUDIO CLASS D MONOBLOCK AMPLIFIER 8 Mount your amplifier in a dry well ventil...

Page 10: ...ound deadener etc from the area of grounding connection Do not use seat belt bolts for grounding It is advisable to test the ground with an ohmmeter Test between the grounding point and the negative b...

Page 11: ...begin the fine tuning process Turn the amp gain all the way down Turn the head unit volume to somewhere around 75 12 Now you can tune the amp Take your time and make only one adjustment at a time It m...

Page 12: ...shuts down due to overheating it will automatically return to normal operation once the amplifier temperature drops below the thermal shutoff temperature Make sure there is proper airflow with no obs...

Page 13: ...s WHINING NOISE Engine noise can be caused by poor grounding of amplifiers headunits signal processors battery or alternator If you can remove the signal cables from the amplifier and the noise goes a...

Page 14: ...4025 NW 36th St Oklahoma City OK 73112 405 239 2800 DDAUDIO COM...

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