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Производитель: ARC Audio Размер: 1021.8 kb Название файла: Язык инструкции:

Always use the proper size power wiring when installing your new amplifier. Depending on the size of your amplifier a 4 gauge or larger wire should be used for power and ground connections. It is also advised and recommended that a fuse be installed on the power wire within 18 inches of the batter or power source for safety. Setting the Gains So you're worried that your 4 Volt output head unit will be too much for the ARC Audio's 2.5 Volt input stage. Don't Be ARC Audio Amplifiers input stage is rated to 2.5 volts RMS @ 1 KHz without clipping. Music is very dynamic. Nothing like a 1 KHz test tone. It would be rare to see a peak as high as a test tone. Furthermore,your head unit produces its output at full volume but when you tune your system you always set the head unit to 70% of maximum volume. 3 Input Section Because of the wide range of head unit output configurations all ARC Audio amplifiers have an adjustable input sensitivity or "Gain"The gain is not a volume or a power limiting control like a throttle. It makes the amp more sensitive to input from the stereo. With the gain uptheamp will reach full outputata lowervolume setting on the deck.At higher gain settings the amp also becomes more sensitive to noise from the car's electrical system. Try to run the gain at the lowest setting possible for you system. There is no correct gain setting. Because speakers require different power demands to reach the same output,the gains most often need to be used to compensate for these differences. If you tried to set all the gains at half way you would probably find the system didn't sound very good. Using good judgment and listening carefully to each speaker is still the best way to tune a system. FRONT GAIN REAR GAIN Input Mode Switch All ARC Audio amplifiers include an input mode switch.This switch controls the signal being sent to the amplifier sections. Most 2-channel amplifiers can be bridged into a single channel however if the signal to the channels is not exactly the distortion will increase significantly.The mode switch solves this problem by offering 3 modes of operation. Stereo This is simple 2 channel stereo operation. Use this setting for most applications that do not involve bridging the output. Bridge (R IN) On a 2-channel amp only the Right channel input will be split and sent to both outputs. You need only use the Right gain. On a 4 channel the right RCA will be sent to the front outputs.The left RCA will be sent to the rear outputs.This is a great way of get high power to a component set.The amplifier now acts like a 2 channel that makes full power at 4 ohms. L+R SUM MONO This is the mode for bridging a subwoofer. Both the left and right channels are combined into a mono signal that is then split and sent to both output.This will give you a true mono output. FRONT r STEREO [r BRIDGED (F R IN) L & R SUM MONO REAR I L L & R SUM L BRIDGED (F L IN) STEREO Crossover Controls A crossover is a device that removes unwanted frequencies from a speaker or amplifier. A tweeter can easily be destroyed by bass notes if they are not filtered out. Likewise a subwoofer will not sound natural if it is playing midrange notes. A crossover removes these sounds from the speaker. As you might guess, careful adjustment is need to ensure that all the speakers are playing the right sounds and that you are left with no "holes" or low spots in the frequency response. FREQ Hz 95 65 • 200 55 550 i12dB FRONT 24dB FREQ Hz FREQ g5 RANGE 55 JL 200 55 550 REAR X1 X10 Bass Boost This amp has a fully adjustable bass boost. Both the frequency and the level of the boost are adjustable. Start with a small increase in the level control.Then "sweep" the frequency up and down. Listen carefully for an improvement in the sound of the bass. If you do not hear any improvement then the woofer does not need any boost. Use Bass Boost carefully.The demands on power output are tremendous.Try to minimize q the use by changing woofer position or the enclosure size. REMOTE BASS Speaker outputs This amplifier is a ...

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