User manual CLARION APA1100

[. . . ] · Variable bass boost circuit to reinforce low frequency signals that may be lost due to subwoofer box design. · Adjustable input level controls with ground loop isolation, allowing a wide range of input signals. · Remote turn-on with "soft start" muting to prevent turn on "thump". · Pulse-width modulated (PWM) MOSFET power supply with low AM RFI and protection circuits for overheating and speaker shorts. [. . . ] Bridged- Mono Subwoofer System Subwoofer 4 Ohms Set X-Over Mode to LP and adjust FREQ to speaker specifications. Figure 3 - In this application the amplifier is bridged for mono operation to drive a subwoofer. 6 Owner's Manual 2-Channel Full-Range, Satellite, or Subwoofer Stereo System Set X-Over Mode as shown Set X-Over Mode as shown; adjust FREQ to speaker specifications. Set X-Over Mode as shown; adjust FREQ to speaker specifications. Figure 4 - In this application, the amplifier is used in stereo and drives two full-range (or satellite or subwoofer) speakers. NOTE: A passive crossover must be used with satellite speakers. 7 2 Channel Power System Amplifier Mixed-Mode Satellite and Subwoofer System FREQ (hz) 80 100 125 150 200 L (mH) 8. 0 6. 4 5. 1 4. 2 3. 2 C (uF) 497 398 Set X-Over Mode to OFF NOTE: Chart values based on 4 ohm speakers. Figure 5 - The amplifier can be configured for a mixed-mode operation. The table provides component values to create a 6dB per octave crossover at specified frequencies. Use components that have a + 5% tolerance and capacitors rated at 100V. NOTE: Choose the same frequency for both LP and HP crossovers. Do not overlap frequencies, as this may damage the amplifier. 8 Owner's Manual INSTALLATION This section lists Mounting and Wiring Precautions prior to installing a Clarion APX201. 2 or APX401. 2. These safeguards provide enough detail to complete the installation successfully. If you do not have the necessary skills, do not attempt to install the amplifier yourself. Instead, see your authorized Clarion dealer for installation recommendations. MOUNTING PRECAUTIONS Although the Clarion APX201. 2 and APX401. 2 both incorporate heat sinks and protection circuits, mounting the amplifier in a tight space without any air movement can still damage internal circuitry over time. Connect the amplifier's positive (+) lead via a fuse directly to the positive (+) terminal on the battery. Do not connect this wire to the car's fuse panel. Use red-insulated 10gauge (or larger) wire for the amplifier's positive (+) power lead and the samegauge black-insulated wire for the ground. When replacing the amplifier's fuse, always use one having the same current rating. Substituting a higher-rated fuse or a slow-blow type can result in serious damage to the amplifier. Never ground the speakers to the vehicle chassis or body. Make sure that your vehicle's electrical system (alternator, battery, etc. ) is capable of handling the additional load. If you are planning a multi-amplifier system, you may need to add a second battery and possibly upgrade the alternator with a higher-output rated model. Consult your authorized Clarion dealer for recommendations. To avoid noise problems, run the amplifier's positive (+) power lead along one side of the vehicle from the battery. Run the remote turn-on wire and RCA audio cables down the center, and route the speaker wires along the remaining side. [. . . ] Initially set the Bass Boost control to its full left position (i. e. Listen to a variety of music styles (e. g. Rock, Rap, etc. ) and slowly increase the Bass Boost control until a noticeable increase in low bass response is perceived. Slowly adjust the Bass Boost control (up or down) to realize the best bass response. [. . . ]