PS1220MContentsIntroduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5Indicators and Controls. . . . . . . . . . . . . . . . . . . . . .8Remote Level Control. . . . . . . . . . . . . . . . . . . . . . .8Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . .11Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11Audiovox Electronics Corporation150 Marcus BoulevardHauppauge, NY 117881-800-323-4815www.jensen.com© 2004 Audiovoxv.030204IntroductionThank you for purchasing a Jensen amplifier. PS series amplifiers offer extreme value and performance. Proper installationis essential for optimal performance and long-term reliability. Please read through this manual to familiarize yourself withyour amplifier and its functions.Warranty ServiceIf your Jensen amplifier should ever require service, you will need to have the original dated receipt. If you need to returnthe unit for any reason, always include the receipt with the product.Installation AssistanceFor installation assistance, call 1-800-323-4815 during normal business hours, or visit www.jensen.com at any time.Features• State-Variable crossover design for precision frequency adjustment• 12dB/octave Butterworth alignment• 40Hz – 200Hz crossover frequency range• iX² Bass with continuously variable 0dB to +18dB bass boost centered at 45Hz• Input level control with a 300mV to 8V input range• High level inputs for interfacing with OEM/factory head units• Full range pre-amp output for installation flexibility• Dual status LED diagnostic indicator• Thermal, short circuit and low impedance protection circuitry• Unregulated Pulse Width Modulated (PWM) power supply for extended dynamic range• Balanced driver circuitry and complementary output stage design for low distortion and unparalleled stability• High current output stage easily drives 2 ohm loadsAmplifierInstallation&OperationManualR