ASA ASA ASA ASA ASA 200.2x 300.2x 400.2x 600.2x 800.2x ASA 400.4x ASA 600.4x ASA 700.5x ASA 1100.5x ASA SERIES 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.
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. 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 types of speaker systems.
TECHNICAL FEATURES • • • • • • • • • • • Low Profile Aluminum Finned Heatsink PWM MOSFET Power Supplies for High Power Output and Best Stability into Low Impedance Loads Variable High Pass and Low Pass Electronic Crossover Soft Delay Remote Turn On/Off Circuit to Eliminating Pops and Clicks Fully Adjustable Bass EQ at 40Hz (18dB) Self Diagnostic Multi Protection Circuit with LED Status Indicator for; Impedance Over-load, Speaker Short Circuit, Thermal Overheating, and DC Output.
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 stereo and other 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. 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 (2.5 cm) of space above the amplifier’s heatsink to permit proper cooling.
CONTROL PANEL LAYOUT 1 2 OUTPUT INPUT 3 4 5 6 7 GAIN HPF X-OVER LPF BASS 9 10 8 REMOTE POWER CH1 CH1 CH2 CH2 MIN MAX 40Hz 250Hz FULL HPF LPF 40Hz 250Hz 0dB STATUS +18dB SPEAKER CH1 CH2 FUSE BATT+ 12 13 REMOTE GND MONO 11 14 15 Fig.2 Panel Layout NOTE: Panel Layout and Controls may differ by model. 1. Line OUTPUT (RCA) Jacks RCA style pass through output jacks allow for a signal to be sent to other amplifiers. 2.
5. X-OVER or MODE Switch for FULL/HPF/LPF Activates the built in electronic crossover network. Works in conjunction with the HPF and LPF adjustable controls. 6. LPF (Low Pass Filter) Control This control is continuously adjustable from 40Hz through 250Hz at 12dB per octave. 7. BASS Control This equalization circuit is used to enhance the low frequency response of the vehicle’s interior. With up to 18dB of boost centered at 40Hz, the BASS EQ can be adjusted to meet your own personal taste. 8.
14. 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. An 18 gauge wire is sufficient to run the REMOTE. 15. GND (Ground Input Connection) A good quality ground is required for your PowerBass AutoSound amplifier to operate at peak performance.
SPEAKER CH1 CH2 BATT+ FUSE REMOTE GND MONO FUSE HOLDER Battery Near Battery Chassis Ground (–) Remote Turn ON To Power Antenna Fig.3 Power Input Connection These amplifiers are designed to work within a 10 to 16 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. The voltmeter should read no less than 12V.
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. Secure the ground cable to the body using a bolt, star washer and nut. Spread silicon over the screw and bare metal to prevent rust and possible water leaks.
RCA INTERCONNECT OUTPUT INPUT CH1 CH1 CH2 CH2 HPF GAIN X-OVER LPF REMOTE BASS POWER MIN MAX 40Hz 250Hz FULL HPF LPF 40Hz 250Hz 0dB STATUS +18dB SWITCH POSITION X-OVER FULL HPF LPF SPEAKER CH1 CH2 BATT+ FUSE REMOTE GND MONO + — 2-8 Ohm SPEAKER GND — DC 14.4V GND + — BATTERY POWER REMOTE ANT. + 2-8 Ohm SPEAKER CAR RADIO RCA OUTPUTS Fig.4 Low Level Input using RCA Choose the correct length and style of RCA interconnects for your needs.
SET UP ADJUSTMENTS Input Gain Adjustment GAIN MIN MAX Input Sensitivity Control Fig.5 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 three simple steps: 1. Set the volume of GAIN on the amplifier to Min (completely counter clock wise). 2. Turn on the head unit and adjust volume to 2/3 maximum, and set the BASS and TREBLE to zero. 3.
40Hz 250Hz Fig.8 Low Pass Control (LPF) LPF (Low Pass Filter) Adjustment Using this volume, adjust the LPF frequency for your subwoofer speaker(s) operation. The X-OVER switch position should be at “LPF”. Remote Port This is for the optional Remote Gain Control (part# ASA-BASS see your Authorized PowerBass dealer for details). Plugging in the remote Bass Control overrides the BASS EQ Control on the amplifier side panel. SPECIAL CONTROLS FOR THE ASA-1100.
SPEAKER WIRING AND CONFIGURATIONS Speaker Load Keep in mind your PowerBass Autosound amplifier is a high power amplifier and not a high current amplifier. In other words this amplifier requires a minimum impedance of 2 ohms STEREO and 4 ohms bridged MONO to operate trouble free. Lower impedance will send the amplifier into protection and may possibly damage the electronics inside. Speaker Wiring Choose the correct speaker wire for your application. Most applications will require a minimum of 16 gauge wire.
Speaker Output Connections 2 Channel Models (ASA-200.2x, ASA-300.2x, ASA- 400.2x, ASA-600.2x, ASA-800.2x) 1. 2-Channel Speaker Output Connection SWITCH POSITION FULL RANGE SPEAKERS 2 Ohms Minimum X–OVER 2 Ohms Minimum FULL HPF LPF SPEAKER CH1 CH2 BATT+ FUSE REMOTE GND MONO Fig.11 2-CH Speaker Connection (Do not connect total impedance under 2 ohms) 2.
Speaker Output Connections 4 Channel Models (ASA-400.4x, ASA-600.4x) 3. 4-Channel Speaker Output Connection FULL RANGE SPEAKERS 2 ohm minimum CH 1,2 SWITCH SWITCH POSITION 2 ohm minimum MODE MONO CH1 CH2 FUSE BATT+ REMOTE GND FULL HPF LPF SPEAKER CH 3,4 SWITCH CH3 SWITCH POSITION CH4 MODE 2 ohm minimum 2 ohm minimum FULL HPF LPF FULL RANGE SPEAKERS Fig.13 4-CH Speaker Connection / 2 ohms minimum 4.
Speaker Output Connections 5 Channel Models (ASA-700.5x, ASA-1100.5x) 6. 5-Channel Speaker Output Connection FULL RANGE SPEAKERS 2 ohm minimum MONO CH1 CH2 CH3 CH4 BATT+ FUSE REMOTE GND SPEAKER CH5 FULL RANGE SPEAKERS SUBWOOFER 2 ohm minimum 2 ohm minimum Fig.16 5-CH Speaker Connection / 2 ohms minimum 7. 3-Channel Speaker Output Connection FULL RANGE SPEAKERS 4 ohm minimum MONO CH1 CH2 CH3 CH4 FUSE SPEAKER CH5 4 ohm minimum SUBWOOFER 2 ohm minimum Fig.
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 50A - 65A 10 GA 10 GA 8 GA 8 GA 8 GA 8 GA 8 GA 35A - 50A 10 GA 10 GA
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 GREEN, 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 A/B AMPLIFIERS Two Channel Models ASA 200.2x ASA 300.2x ASA 400.2x 4 Ohms Power (Watts) 50 x 2 75 x 2 100 x 2 2 Ohms Power (Watts) 100 x 2 150 x 2 200 x 2 4 Ohms Mono Power (Watts) 200 x 1 300 x 1 400 x 1 400 600 800 Peak Power (Watts) THD Frequency Response 0.05% 0.05% 0.05% 20Hz - 22kHz 20Hz - 22kHz 20Hz - 22kHz S/N Ratio >94dB >94dB Damping Factor >150 >150 Input Sensitivity 0.5 - 4.0 Volts 0.5 - 4.0 Volts Crossover Slope >94dB >150 0.
ASA 400.4x ASA 600.4x 4 Ohms Power (Watts) 50 x 4 100 x 4 2 Ohms Power (Watts) 100 x 4 200 x 4 4 Ohms Mono Power (Watts) 200 x 2 400 x 2 Four Channel Models Peak Power (Watts) 800 1600 THD 0.5% 0.5% Frequency Response 20Hz - 22kHz 20Hz - 22kHz S/N Ratio >94dB >94dB Damping Factor >150 >150 Input Sensitivity 0.5 - 4.0 Volts 0.5 - 4.0 Volts Crossover Slope 12 dB 12dB High-Pass Crossover Freq. (Hz) 40 - 250Hz 40 - 250Hz Low-Pass Crossover Freq.
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. 13936 Mountain Avenue – Chino, CA 91710 Tel. (909) 993-5399 – Fax (909) 993-5393 www.powerbassusa.
