User manual CLARION APA1200

[. . . ] INPUT CONNECTIONS AND AUDIO CONTROLS The front panel of the APA1200 and APX400. 2 both contain connections for RCA Inputs, Speaker Level Inputs and Audio Controls as shown below. The RCAInput Connections are gold-plated RCA Jacks and are labeled as RIGHT and LEFT. Figure 1- 1. Crossover Frequency Multiplier Switch 6. Speaker Level Inputs 3 · Gain Control - This allows you to set the nominal operating level of the amplifier. [. . . ] Failure to do this will result in noise and improper operation. 4 CONNECTIONS FOR POWER AND SPEAKERS The rear panel of the APA1200 and APX400. 2 both contain power and speaker connections as shown below. 25 Amp Fuse / 40 Amp Fuse 5 APPLICATIONS The Clarion APA1200 and APX400. 2 2-channel car audio amplifiers can be used in a variety of system applications. Here are some examples to help plan your own installation. Bridged- Mono Subwoofer System 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 2-Channel Full-Range, Satellite, or Subwoofer Stereo System (Set INPUT SELECT Switch to STEREO) 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 Mixed-Mode Satellite and Subwoofer System (Set INPUT SELECT Switch to STEREO) FREQ (hz) 80 100 125 150 200 L (mH) 8. 0 6. 4 5. 1 4. 2 3. 2 C (uF) 497 398 318 265 199 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 INSTALLATION This section lists Mounting and Wiring Precautions for installing a Clarion APA1200 or APX400. 2. Combined with the experience of a professional installer, these safeguards provide enough detail to successfully complete an installation. If you do not have the necessary skills, do not install the amplifier yourself. Refer to Figure 6 when making electrical connections. 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 10-gauge (or larger) wire for the amplifier's positive (+) power lead and the same-gauge 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 to the battery. [. . . ] ·For example, 55Hz x 10 = 550Hz or 550Hz x 10 = 5. 5kHz. 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. [. . . ]