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Installation Instructions

1. 

Disconnect the negative cable from the car battery.  Tape up the end   

 

so it is isolated form the battery.

2. 

Run the power wire from the battery to the amplifier. Plan this part of the  

 

installation carefully. This cable will carry very high current. If it should  

 

short to the body and it is not properly fused it could catch fire.

3. 

Connect the power wire to the battery using a fuse capable of the total  

 

current load of all amplifiers connected. Don’t install the fuse yet. Wait  

 

until the end. Locate the fuse as close as possible to the battery. If the   

 

fuse is further that 18 inches (wire length) from the battery you should  

 

reevaluate the wire and fuse placement.

4. 

Find the closest clear metal area to the amp for a ground. Sand, grind or  

 

scrape all paint and undercoating from the body and screw the ground  

 

securely to the body. 

 

 

It is advisable to test the ground with an ohmmeter between the  

 

 

ground cable and the negative battery cable to insure a good low  

 

 

resistance connection. Some alloys used in modern cars do not    

 

 

offer the best ground. If you believe this is the case consult with the  

  vehicle 

manufacturer.

5. 

Run the speaker wire to the speakers. It is advised that you leave some  

 

extra wire at this point. You can “clean it up” later.

6. 

If you haven’t already done so, mount the amp now.

7. 

Connect the power and ground to the amplifier. 

 

 

Only after this step should you install the fuse at the battery.

8. 

Connect the remote wire from the head unit to the amplifier. Now is a  

 

good time to turn on the amp for the first time. Make sure it turns on   

 

properly and does not go into protect.

9. 

Connect the speaker wire to the amp and speakers (make sure  

 

the amp is off first). Make sure the polarity (+ and-) is correct.

10. 

Connect the RCA’s to the amp.

11. 

Double check the amplifier controls at this time. Make sure    

 

everything is set correctly for your system.

12. 

Now you’re ready to play it for the first time. It is best to leave the  

 

gain all the way down at first. Start with the head unit volume low  

 

and work your way up.

13. 

Now you can tune the amp. Take your time and make only one  

 

adjustment at a time. It may take some time to get the system  

 

fully adjusted. During this time the amp is drawing current from  

 

the battery. You should check the battery voltage from time to time  

 

and re-charge it if it gets low. Battery voltage can affect the way  

 

the amplifier performs.

14. 

You’re done. Now have fun.

 

This amplifier is equipped with an advanced diagnostic system 
controlled by the microprocessor. In the event that this unit goes 
into protection for any reason it will flash the status light found on 
the control end of the amplifier. The different sequences indicate 
the “Code”  for faster trouble shooting. 

THERMAL PROTECTION (Turn the volume 
down and wait for the amplifier to cool)

CODE 11 

Red Green Flashing

OVERVOLT 

(This is a charging system 

failure. DO NOT START THE ENGINE.) 

CODE 14 

1 Flash, Pause, 4 Flashes

SHORT 

(Turn the amplifier off and check 

for a shorted speaker or wire.)

CODE 12 

1 Flash, Pause, 2 Flashes

REPEATED SHORT

(Correct the short 

and leave the amp off for 5 minutes.)

CODE 13 

1 Flash, Pause, 3 Flashes

NORMAL TURN ON

GREEN FLASHING

Summary of Contents for KS 1200.1

Page 1: ...of the original sales receipt Direct returns from consumers or non authorized retailers will be refused unless specifically authorized by ARC AUDIO with a valid return authorization number To receive a Return Authorization number call ARC Audio Warranty Department Be prepared to give you name address phone number model number and serial number of the defective unit All warranty returns should be p...

Page 2: ...of listening enjoyment ARC Audio SOLID CONSTRUCTION for SOUND Car Audio Systems Setting the Gains So you re worried that your 8 Volt output head unit will be too much for the ARC Audio s 4 Volt input stage Don t Be ARC Audio Amplifiers input stage is rated to 4 volts RMS 1KHz without clipping Music is very dynamic Nothing like a 1KHz test tone It would be rare to see a peak as high as a test tone ...

Page 3: ...l the speakers are playing the right sounds and that you are left with no holes or low spots in the frequency response 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 ...

Page 4: ... ohm bridged is equal to 1 2 ohm stereo Check the compatibility of you woofers and amplifier before you begin 2 KS 1200 1s or KS 2500 1s in a bridged configuration must not be connected to a load lower then 2 ohms For bridging to work both amplifiers must be playing exactly the same signal at exactly the same output level To make this easier use the MASTER and SLAVE as above but the slave amp must...

Page 5: ...t to the amplifier Now is a good time to turn on the amp for the first time Make sure it turns on properly and does not go into protect 9 Connect the speaker wire to the amp and speakers make sure the amp is off first Make sure the polarity and is correct 10 Connect the RCA s to the amp 11 Double check the amplifier controls at this time Make sure everything is set correctly for your system 12 Now...

Page 6: ...THD 100Hz 14 4VDC POWER OUTPUT 4 650 WATTS 750 WATTS POWER OUTPUT 2 1200 WATTS 1400 WATTS POWER OUTPUT 1 1000 WATTS 2500 WATTS THD TOTAL HARMONIC DISTORTION 01 S N RATIO A wtg ref 1 watt 4 70dB DAMPING FACTOR 25W 4 1000 INPUT SENSITIVITY RCA 3V 6 5V 4 INPUT IMPEDANCE 13K FREQUENCY RANGE 3dB 15Hz 230Hz CROSSOVER RANGE 30Hz 230Hz SUBSONIC FILTER RANGE 10Hz 80Hz BASS BOOST 0 15dB 30Hz 125Hz KS 1200 1...

Page 7: ...dge 2 amplifiers into 1 channel To bridge 2 amps you must set amp 1 to Normal and amp 2 to Slave All adjustments will then be made to amp 1 Amp 2 will need no further adjustments 4 0HMS or 2 OHMS _ 10D2 4 12D2 4 _10D2 4 _ 10D4 4 12D4 4 12D4 4 11 12 KS 1200 1 KS 1200 1 KS 1200 1 KS 1200 1 KS 1200 1 KS 1200 1 KS 1200 1 KS 1200 1 ...

Page 8: ... stock ground wire on the battery between the battery and the body It should be Upgraded to 4 AWG from the factory 8 or 10 AWG RCA CABLE RCA CABLE Battery Battery or Capacitor 1 0 AWG 18 MAX 1 0 AWG 18 MAX 18 MAX 1 0 AWG 1 0 AWG FUSE FUSE This is a stock ground wire on the battery between the battery and the body It should be Upgraded to 1 0 AWG from the factory 8 or 10 AWG KS 2500 1 DUAL BATTERY ...

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