PowerBass ATM 330.2 Owner'S Manual Download Page 1

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ATM COMPACT CLASS A/B AMPLIFIER

Owners Manual

Please read through this manual to familiarize yourself with your new amplifier. Should your PowerBass

AutoSound mobile amplifier ever require service, you will need to have the original dated receipt.

ATM 330.2
ATM 440.2
ATM 550.4
ATM 660.4

Summary of Contents for ATM 330.2

Page 1: ...ual Please read through this manual to familiarize yourself with your new amplifier Should your PowerBass AutoSound mobile amplifier ever require service you will need to have the original dated recei...

Page 2: ...ange or they may be selected only to power subwoofers It is important that you closely follow the wiring instructions contained in this Owners Manual so that you get the most from your PowerBass AutoS...

Page 3: ...ATM 550 4 and ATM 660 4 only INSTALLATION EXPERIENCE Installation of PowerBass mobile amplifiers requires detailed knowledge of electronics wiring and proper speaker impedance We strongly recommend in...

Page 4: ...nife to trim away fabric from hole locations before drilling or cutting When running power cables through sheet metal be sure to use grommets to properly insulate the metal edges from the wire insulat...

Page 5: ...amplifier Excessive force could cause the plastic mounting feet to crack WARNING Do not install in a place where it could injure the driver or passengers if the vehicle stops suddenly Upside down moun...

Page 6: ...5Vrms 2 GAIN Control This control is used to match the input sensitivity of the amplifier to the particular source unit that you are using 3 HIGH INPUT Allows you to connect speaker output from facto...

Page 7: ...ent that a fuse blows replace the fuse only with the same value See speficification tables 11 BATT Power Input Connection This terminal is the main power input for the amplifier and must be connected...

Page 8: ...might even cause the thermal protection circuitry to shut off the amplifier For best results we recommend a PowerBass amplifier install kit available at your local PowerBass dealer Use rubber grommet...

Page 9: ...id running the power cable over engine components and near heater cores The use of an inline fuse or circuit breaker is a must this will prevent the risk of a potential fire caused by a short in your...

Page 10: ...n on and off the amplifier in correspondence with the source If the source unit does not have a remote turn on lead then a power antenna wire can be used If neither of these leads is available at the...

Page 11: ...ables Car environments are notorious for poorly insulated wires This means that hiss engine noise and fan noise can easily be picked up through RCA cables if run incorrectly Make sure that the cables...

Page 12: ...vel outputs i e factory radio This plug in terminal will allow you to connect directly to the speaker output of the radio without the need of an external adapter Determine the type of radio you have a...

Page 13: ...FOUR CHANNEL CONNECTIONS FLOATING GROUND RADIO MOST POPULAR TYPE FOUR CHANNEL CONNECTIONS COMMON GROUND RADIO RARE TYPE 13...

Page 14: ...maged amplifier SET UP ADJUSTMENTS Input Gain Adjustment Fig 5 GAIN Control GAIN MIN MAX Input Sensitivity Control HPF High Pass Filter Adjustment When you are using coaxial or component speaker syste...

Page 15: ...insulated speaker terminals not supplied or by soldering the connection Make sure the speaker connections are positive to positive and negative to negative At the amplifier end At the amplifier end i...

Page 16: ...aker Output Connection Fig 11 2 CH Speaker Connection Do not connect total impedance under 2 ohms Fig 12 1 CH Bridged Mode Speaker Connection Do not connect total impedance under 4 ohms CAUTION When b...

Page 17: ...Speaker Output Connections 4 Channel Models ATM 550 4 ATM 660 4 1 4 Channel Speaker Output Connection Fig 13 4 CH Speaker Connection Do not connect total impedance under 2 ohms 17...

Page 18: ...Connection Fig 14 3 CH Speaker Connection CH 3 4 are Bridged as shown Fig 15 2 CH Speaker Connection Do not connect total impedance under 4 ohms CAUTION When bridging the speaker outputs the amplifier...

Page 19: ...more information about recommended power wire check out our website at www powerbassusa com PERSONAL NOTES Name ______________________________________________________________ Date Purchased __________...

Page 20: ...mplifier Voltage protection engaged Voltage to the amp is not within the 10 16 VDC operating range Have the battery charging system inspected Short circuit protection is engaged Check for speaker wire...

Page 21: ...High Pass Crossover Freq Hz 50 500Hz 50 500Hz Low Pass Crossover Freq Hz 50 500Hz 50 500Hz Selectable Bass EQ 0 6dB 12dB 0 6dB 12dB Subwoofer EQ Freq 40Hz 40Hz Fuses ATC Style 1 x 25A 1 x 30A Dimensi...

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Page 23: ...id damage or exposure to excessive heat Attempted repairs or alterations of any nature Product that has not been installed according to this owners manual Any implied warranties including warranties o...

Page 24: ...PowerBass Autosound A division of PowerBass USA Inc 13936 Mountain Avenue Chino CA 91710 Tel 909 993 5399 Fax 909 993 5393 www powerbassusa com...