-OHM STABLE DESIGN Minimum Impedance Load is 1-Ohm* *2-ohm minimum impedance when used in Dual Link Power Doubling configuration. ASA3-600.1D ASA3-1000.1D ASA3-1500.1D ASA SERIES CLASS D 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.
Thank you and Congratulations Thank you for your decision to purchase a PowerBass USA Autosound mobile amplifier! Our Autosound amplifiers are the result of extensive engineering, testing, and bullet proof construction. They feature the latest in D Class microprocessor technology. Their versatility enables compatibility with optional signal and audio processors. These high quality MOSFET amplifiers may be configured to allow maximum flexibility in designing different of subwoofer options.
TECHNICAL FEATURES • • • • • • • • • • • • • • Mono Block Amplifier for Subwoofer Latest Class D Technology Double Sided Circuit Board Construction 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 Built-in Adjustable Low Pass Electronic Crossover Built-in Fully Adjustable Bass Boost EQ Self Diagnostic Protection Circuit with LED Status Indicator for Impedance Over-load, Speaker Short Circuit
INSTALLATION PRECAUTIONS NOTE: Proceed only if you are a qualified installer, otherwise; see your Authorized PowerBass Dealer to professionally install this amplifier. Always wear protective eyewear when using tools. • • • • • • • • Turn off all electrical devices before you begin. Disconnect the negative (-) lead from your vehicles battery. Locate all fuel lines, brake lines, oil lines, and electrical cables when planning the install.
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. You may use the amplifier as a template and mark the four screw locations with a felt tip pen. Set the amplifier aside before drilling. Use caution to make sure there are no objects behind the installation surface that may become damaged during drilling. If mounting under a seat, make sure there is at least 1-inch (2.
CONTROL PANEL LAYOUT Fig.2 Panel Layout 1. POWER/STATUS Indicator The BLUE L.E.D. lights up when the power is on. This L.E.D. turns RED constantly or flashes when the built-in protection circuitry is activated. This indicates a problem with the system in relation to the amplifier (see Troubleshooting Tips page 21). 2. LINE OUT (RCA) Jacks RCA style pass through output jacks allow for a signal to be sent to other amplifiers in a daisy-chain configuration.
4. GAIN Control This control is used to match the input sensitivity of the amplifier to the particular source unit that you are using up to 6 volts. Proper setting on page 13. 5. SUB SONIC Control This control is continuously adjustable from 15Hz through 50Hz at 12dB per octave to provide an extra level of speaker protection from bass robbing power at unheard frequencies. 6.
12. BADGE Switch Controls the lighting of the top mounted PowerBass logo badge. 13. SPEAKER Output Terminals As shown in the wiring diagrams, be sure to observe speaker polarity through the system and subwoofer impedance. This specially tooled terminal is designed to accommodate up to 10 gauge speaker wire. 14. 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.
POWER WIRING AND SIGNAL CONNECTIONS *** WARNING *** Disconnect the negative (-) battery terminal before you start any wiring work! The battery of your car audio system must be disconnected until the entire wiring installation is completed. Your PowerBass Autosound Class D amp will draw large levels of current, so use the largest gauge power/ ground cable as possible.
BATT+ (Power) This amplifier should be wired directly to the vehicle battery using the appropriate size cable. Start at the vehicle battery and run the power cable through to the amplifier. Avoid 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 power cable.
REM (Remote Trigger) This terminal must be connected to a switched +12V source. Typically, remote turn-on leads are provided at the source unit that will turn on and off the amplifier in correspondence with the source. If there is not a remote turn-on lead on the unit, then a switched +12V supply must be used, like the ACC, +12V. Run a minimum of 18 gauge wire from the amplifier location to the source of the switched +12V lead.
RCA INTERCONNECT WIRING Fig.5 Low Level Input using RCA Choose the correct length and style of RCA interconnects for your needs. Always use high quality RCA audio cables (not supplied) for signal connections—those with multiple layers of shielding or a twisted pair variety for better noise rejection. Be extra careful when routing your RCA audio interconnect cables. Car environments are notorious for poorly insulated wires.
SET UP ADJUSTMENTS Input GAIN Adjustment GAIN MIN MAX Fig.6 GAIN Control This control allows you to match the input level of the amplifier to the output level of your head unit. Matching the input can be accomplished in four simple steps: 1. Make sure that the remote level control is not plugged in until after the master gain control is set. 2. Set the GAIN control on the amplifier to Min (completely counter clock wise). 3.
0dB BASS EQ Adjustment +18dB Fig.9 Bass EQ Boost Control This special feature is designed to provide you more powerful sound quality, and it allows you to increase the bass output up to +18dB at 45Hz. Keep in mind that more is not always better. Setting the control to the max (18dB) will stress the amplifier and the speakers and could result in damage. Fig.10 Connection with RJ45 Jack REMOTE LEVEL Controller Connection Your PowerBass Autosound Class D amp includes a Remote Level control module.
SPEAKER WIRING AND CONFIGURATIONS Speaker Load Keep in mind your PowerBass Autosound Class D amp is a high power amplifier and not a high current amplifier. In other words it requires a minimum impedance of 1 ohm. If you are unsure of calculating impedance loads please consult your Authorized PowerBass Autosound Dealer before damaging your amplifier. Too low of an impedance could send your amplifier into protection mode and/or damage the amplifier. NOTE: Know your impedance load before connecting speakers.
Speaker Output Configurations 1. A SINGLE VOICE COIL SUBWOOFER SPEAKER Fig.11 A Single Voice Coil Subwoofer (1~4 ohm) 2. TWO SINGLE VOICE COIL SUBWOOFER SPEAKERS (Note: Don’t connect speaker impedance under 2 ohms) Fig.
3. ONE DUAL VOICE COIL SUBWOOFER SPEAKERS (Note: Don’t connect speaker impedance under 2 ohm) 2-4 ohms DUAL VOICE COIL SUBWOOFER Dual 4 ohm becomes 2 ohm as shown above Dual 2 ohm becomes 1 ohm as shown above Fig.13 One Subwoofer (2~4 ohms) with Dual Voice Coil 1-OHM STABLE DESIGN Minimum Impedance Load is 1-Ohm Unless you are bridging two ASA3 amplifiers in which case min load is 2 ohms. Maintaining proper impedance is critical when wiring the Class D model amplifiers.
4. DUAL LINK AMP TO AMP BRIDGED CONNECTION You can connect two of the same model number ASA3 Series amplifiers and double the output power into a minimum 2-ohm load (do not mix two different model amplifiers or trouble will occur). IMPORTANT – Do not attempt wiring the Dual Link Power Doubling circuitry unless you are a qualified installer.
MASTER AMP SIDE PANEL SLAVE AMP SIDE PANEL Fig.15 Dual Link Speaker connection (minimum 2 ohm load) SPEAKER CONNECTION FOR BRIDGING TWO AMPS The mono woofer must be connected between the speaker (+) terminals of the two amplifiers and use at least #12 gauge speaker wiring as shown above. Install a #12 gauge wire link between the speaker (–) terminals of the two amplifiers as shown above. If this is not done, the system will not function properly, and damage to the amplifiers may result.
RECOMMENDED WIRE SIZES Power Cable Selection Chart Fuse Total 4Ft 4-7Ft 7-10Ft In Amperes 10-13Ft 13-16 Ft 16-19 Ft 19-22 Ft 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 2 GA 2 GA 2 GA 105A - 125A 8 GA 8 GA 8 GA 4 GA 4 GA 4 GA 2 GA 85A - 105A 8 GA 8 GA 8 GA 4 GA 4 GA 4 GA 4 GA 65A - 85A 10 GA 8 GA 8 GA 8 GA 4 GA 4 GA 4 GA PowerBass makes several types of amplifier wiring kits to assist with your inst
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 • • • • Check RCA connections Test speaker outputs with known good speaker Substitute known good Source Unit Check for signal on the RCA cable with VOM in AC position Red Status Protection LED is ON, no output and 1. Amp is VERY HOT • 2.
SPECIFICATIONS FOR AUTOSOUND D CLASS AMPLIFIERS PowerBass Autosound Class D Models ASA3-600.1D ASA3-1000.1D ASA3-1500.1D Power Output @ 14.4 VDC Input • 4 Ohms RMS at THD 0.5% 200W x 1 400W x 1 500W x 1 • 2 Ohms RMS at THD 0.5% 400W x 1 700W x 1 1000W x 1 • 1 Ohm RMS at THD 0.
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. This warranty applies only to PowerBass products sold to consumers by Authorized PowerBass Dealers in the United States of America.
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.
