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2-OHM STABLE DESIGN
Minimum Impedance Load is 2-Ohms
ASA SERIES CLASS AB MONO BLOCK AMPLIFIER
Please read through this manual to familiarize yourself with your new amplifi er. Should your PowerBass AutoSound mobile amplifi er
Owners Manual
ever require service, you will need to have the original dated receipt.
ASA3-400.1
ASA3-600.1
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Summary of Contents for PowerBass ASA SERIES
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Page 1: Owners Manual
ASA SERIES CLASS AB MONO BLOCK AMPLIFIER Owners Manual Please read through this manual to familiarize yourself with your new amplifi er. Should your PowerBass AutoSound mobile amplifi er ever require service, you will need to have the original dated receipt. - Page 2 Unlike most Full Range amplifiers these models are equipped with a Low Pass Filter control (LPF) that when engaged is intended only to power subwoofer(s). It is important that you closely follow the wiring instructions contained in this Owners Manual so that you get the most from your PowerBass AutoSound A/B Class Mono Block mobile amplifier.
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Page 3: Technical Features
TECHNICAL FEATURES • Mono Block Amplifier for Full Range or Subwoofer Only Applications • MOSFET Power Supplies for High Power Output and Unprecedented Stability into Low Impedance Loads • Soft Delay Remote Turn On/Off Circuit to Eliminating Pops and Clicks •... -
Page 4: Installation Precautions
MOUNTING THE AMPLIFIER Fig.1 Mounting Amplifier Due to the high power output of our PowerBass Autosound amplifiers, considerable heat may be produced when the unit is in operation. For this reason the amplifier should be mounted in a location which will allow air to circulate freely. A clearance of at least 2-inches (5 cm) to all sides of the amplifier is necessary not only for proper cooling, but also for gaining access to the inputs and other variable controls. -
Page 5: Mounting Location
MOUNTING LOCATION Find a clear and well ventilated area to mount your amplifier that is unobstructed by any objects that will cause harm or block ventilation. Do not mount under a carpet or in an area with no air circulation. You may use the amplifier as a template and mark the four screw locations with a felt tip pen. -
Page 6: Control Panel Layout
CONTROL PANEL LAYOUT Fig.2 Panel Layout 1. Line INPUT (RCA) Jacks These RCA style input jacks are for use with source units that have RCA line level outputs. A source unit with a minimum output of 200mV is required for proper operation. However, this input will accept levels up to 6Vrms. - Page 7 This specially tooled terminal is designed to accommodate up to 10 gauge speaker wire. 11. FUSES For convenience most PowerBass AutoSound amplifiers utilize common automotive ATC type fuses. For continued protection in the event that a fuse blows, replace the fuse only with the same value.
- Page 8 13. REM (Remote Input Connection) All PowerBass AutoSound amplifiers can be turned on by applying 12 volts to this terminal. This can be found on the rear of the source unit in the form of an electric antenna output, or a remote output. If this is not available you can wire to the ACC position on the key.
- Page 9 Fig.3 Power Input Connection This amplifier is designed to work within a 9 to 17 volt DC range. Before any wires are connected, the vehicles electrical system should be checked for correct voltage supply with the help of a voltmeter. First, check the voltage at the battery with the ignition in the OFF position.
- Page 10 GND (Ground) When grounding your amplifier, locate a metal area close to the amplifier that is good source of ground (preferable the floor pan). Once again, investigate the area you wish to use for electrical wires, vacuum lines, and brake or fuel lines. Use either a wire brush or sandpaper to eliminate unwanted paint for better contact of the ground.
- Page 11 FUSE REQUIREMENTS While the panel on your PowerBass amplifier incorporates one or more fuses, these do nothing to protect the vehicle from a dangerous short circuit. It is absolutely vital that the main power lead to the amplifier(s) in the system be fused within 18-inches (45cm) of the connection to the vehicle battery. The value of this fuse (or circuit breaker) should be no greater than the sum of the fuses found on all of the equipment being connected to that power wire.
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Page 12: Rca Interconnect Wiring
RCA INTERCONNECT WIRING POWER/ STATUS BADGE INPUT OUTPUT GAIN X-OVER LPFB ASS EQ SWITCH POSITION FULL MINM 40HZ 250HZ 0dB1 REMOTE LEVEL FUSE BA TT+ REMG CAR RADIO DC 14.4V – 2-4 Ohm – WOOFER BATTERY Fig.5 Low Level Input using RCA You may run a stereo or mono signal into the INPUT of the amplifier. -
Page 13: Set-Up Adjustments
Make sure that the cables for power and audio signal are not on the same side of the vehicle and that they do no cross each other; this will help reduce any noise that may radiate from the power cable and the signal cable. - Page 14 SPEAKER WIRING AND CONFIGURATIONS Speaker Load Keep in mind your PowerBass Autosound amp is a high power amplifier and not a high current amplifier. In other words it requires a minimum impedance of 2 ohms. If you are unsure of calculating impedance loads please consult your Authorized PowerBass Autosound Dealer before damaging your amplifier.
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Page 15: Speaker Wiring
Speaker Wiring Choose the correct speaker wire for your application. We recommend a minimum of 16 gauge quality wire. Route these using the same precautions as you did when you ran the power cable. Terminate these wires at the speaker end using insulated speaker terminals (not supplied) or by soldering the connection to the speaker. Be certain to maintain correct polarity throughout the system. - Page 16 2. TWO SINGLE VOICE COIL SUBWOOFER SPEAKERS (Note: Don’t connect speaker impedance under 2 ohms) Fig.11 Two 4 ohm Subwoofers with Single Voice Coil 3. ONE DUAL VOICE COIL SUBWOOFER SPEAKERS (Note: Don’t connect speaker impedance under 2 ohm) Fig.12 One 4 ohm Subwoofer with Dual Voice Coil 2-OHM STABLE DESIGN Minimum Impedance Load is 2-Ohms Maintaining proper impedance is critical when wiring the Class A/B mono amplifiers.
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Page 17: Recommended Wire Sizes
RECOMMENDED WIRE SIZES Power Cable Selection Chart Fuse Total 4-7Ft 7-10Ft 10-13Ft 13-16 Ft 16-19 Ft 19-22 Ft In Amperes Length of Wire/Gauge 150A - 200A 2 GA 2 GA 2 GA *1/0* *1/0* *1/0* *1/0* 125A - 150A 4 GA 4 GA 4 GA 4 GA... -
Page 18: Troubleshooting Tips
TROUBLESHOOTING TIPS Problem Solution Power LED not ON With a Volt Ohm Meter (VOM) check: • +12 Volt power terminal (should read +12 to +16VDC • Remote turn-on terminal (should read +12 to +16VDC) • Ground Terminal Power LED lights BLUE, no output •... - Page 19 SPECIFICATIONS FOR AUTOSOUND AB MONO AMPLIFIERS PowerBass Autosound Class AB ASA3-400.1 ASA3-600.1 Mono Block Models Power Output @ 14.4 VDC Input 4 Ohms RMS at THD 0.5% 200W x 1 300W x 1 2 Ohms RMS at THD 0.5% 400W x 1...
- Page 20 NOTES...
- Page 21 NOTES...
- Page 22 NOTES...
- Page 23 POWERBASS AUTOSOUND LIMITED WARRANTY POLICY PowerBass USA, Inc. offers limited warranty on PowerBass products under normal use on the following terms: PowerBass Autosound Amplifiers are to be free of defects in material and workmanship for a period of one (1) year.
- Page 24 PowerBass Autosound – A division of PowerBass USA, Inc. 2133 S. Green Privado – Ontario, CA 91761 Tel. (909) 923-3868 – Fax (909) 923-8048 www.powerbassusa.com...
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