PowerPlus Amplifiers 420, 840, 900, 1150, 1302, 1304 Installation & Operation Manual Contents Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Features and Specifications . . . . . . . . . . . . . . . 3 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Speaker Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Indicators and Controls . . . . . . . . . . . . . . . . . .
PowerPlus Amplifiers Introduction The Jensen PowerPlus series of amplifiers were designed to meet or exceed the CEA-2006 test standards. These new standards give all participating manufacturers (and many don't participate) a baseline when comparing amplifiers of similar power output. The CEA Power rating protects you, the customer. “Power is power – it doesn't matter who makes it,” is not always true. What does matter is whether the power can be produced in the first place.
PowerPlus Amplifiers Features and Specifications • • • • • Your new PowerPlus Jensen mobile stereo power amplifier is the amplifier of choice for the high demands of auto sound reproduction. With its deep-bass reproduction and plenty of reserve power, low harmonic distortion and neutral reproduction, the PowerPlus series of amplifiers takes Mobile Hi-Fi to new heights. Like all Jensen products, when it comes to accurate sound reproduction the PowerPlus series takes a back seat to no one.
PowerPlus Amplifiers Installation going to the vehicle chassis) and make sure the battery is grounded to the chassis with at least a #8 gauge wire. Also check the alternator connections, making sure they are tight and free from corrosion, rust or dirt.
PowerPlus Amplifiers Power Wiring Charging System Power Terminal (+12V/B+) In some cases, the installation of just one (1) amplifier could be enough to overload your factory electrical system (i.e., alternator). Depending on the state of your electrical system and overall condition of your vehicle, you may need to upgrade your alternator and battery. After the vehicle is started, the alternator provides the power to your electrical system, not the battery.
PowerPlus Amplifiers Ground Terminal (GND) Make the ground lead as short as possible, leaving enough length to complete the installation and to allow for any service that may be needed at a later date. To ensure a good ground, scrape away any paint or undercoating to expose bare metal. Use a "ring" terminal of the proper gauge and an "outside star washer" (between the chassis and ring terminal) when making your ground connection.
PowerPlus Amplifiers Speaker Wiring PowerPlus 420/1302 Two Speakers The Speaker Wiring diagrams illustrate options for connecting one or two speakers. Observe the proper speaker polarity. One Subwoofer NOTE: PowerPlus amplifiers can drive speakers with a nominal impedance range of 2~ 4-ohms. For maximum power, configure your speakers for a nominal 2-ohm load. NOTE: Do not overlook the use of the proper gauge speaker wire. The PowerPlus series of amplifiers require a minimum of 12-gauge wire.
PowerPlus Amplifiers PowerPlus 840/1304 Two Speakers and Bridged Subwoofer Four Speakers HPF LPF OFF HPF LPF OFF HPF LPF OFF HPF LPF OFF SPEAKER OUTPUT SPEAKER OUTPUT + + CH1 – + CH2 BRIDGED – + – + CH3 – + CH4 + CH1 + BRIDGED – + CH2 – + CH3 – + CH4 – – – + BRIDGED – BRIDGED – 4 ohm nominal 2 ohm minimum 4 ohm nominal 2 ohm minimum 4 ohm nominal 4 ohm nominal 2 ohm minimum Two Subwoofers HPF LPF OFF HPF LPF OFF SPEAKER OUTPUT + CH1 + BRIDGED – + CH2 4 ohm nomi
PowerPlus Amplifiers Input Wiring PowerPlus 840/1304 Most trunk/hatchback installations will require a 15-20 foot RCA cable, while pickup trucks and under-seat mounting will require a 6-12 foot RCA cable. Connect an RCA cable from your receiver to the RCA input on your amplifier. The PowerPlus 1304 and 840 can be configured for three different input modes: 2 channel, 3 channel or 4 channel.
PowerPlus Amplifiers 4 Channel MODE 4 3 2 MODE CH3 CH1 4 3 2 CH4 HPF LPF OFF X-OVER 40Hz 240Hz 40Hz 400Hz LPF 0dB 12dB 5V CH2 0.4V HPF BASS EQ GAIN 5V 3/4 INPUT OUTPUT 1/2 INPUT 0.4V 0dB GAIN 12dB 40Hz BASS EQ 400Hz 40Hz HPF 240Hz LPF HPF LPF OFF X-OVER NOTE: The use of good quality RCA cables is just as important as power and speaker wire. Choose a high quality low capacitance cable for the best results.
PowerPlus Amplifiers Indicators and Controls Power Indicator (POWER) speakers (6 1/2", 6 X 9", etc.) by adjusting the crossover to a higher setting (80–100Hz). The power indicator provides a visual indication that the amplifier is turned on. Crossover (X-OVER) Input Level Control (LEVEL/GAIN) The Jensen PowerPlus series of amplifiers have built-in low-pass and highpass crossover filters for bi-amplifying the system. Adjust the crossover to accommodate your chosen installation method.
PowerPlus Amplifiers Testing Remote Input Level Control Before finishing the installation, perform the following tests to make sure the wiring is correct and everything is operating properly. The PowerPlus 900, 1150 and 1302 come equipped with a Remote Input Level Control. The Remote Input Level Control allows the input level to be adjusted from an alternate location. It can be mounted under-dash or in-dash.
PowerPlus Amplifiers Troubleshooting Problem Amplifier does not turn on Possible Cause No power to +12V terminal No power to REM terminal Blown main fuse at battery Blown fuse at amplifier Faulty ground Volume control too sensitive Distorted sound Input level control adjusted too high Input level control adjusted too high Blows fuse(s) at amp Power wires connected backwards Internal problem with amp Engine noise / Ground loop(s) Alternator whine Faulty ground at amp Faulty ground at head unit Inductive
PowerPlus Amplifiers CEA Power Output PowerPlus 1302 Power Output: 175 watts RMS X 2 channels into 4-ohms @ < 1% THD+N Signal to Noise Ratio: 100dBA below reference (Reference: 1 watt, 4-ohms) Additional Power Output: 280 watts RMS X 2 channels into 2-ohms @ < 1% THD+N 570 watts RMS X 1 channels (Bridged Mono) into 4-ohms @ < 1% THD+N Frequency Response: 10Hz to 60 kHz, -3dB (Reference: 1 watt) Dimensions: L15.5" x 2.5" x 11.
