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KS 1200.1

KS 1200.1

GND

TURN

ON

12V

+

KS 1200.1

KS 1200.1

GND

TURN

ON

12V

+

KS 1200.1

KS 1200.1

GND

TURN

ON

12V

+

KS 1200.1

KS 1200.1

GND

TURN

ON

12V

+

KS 1200.1

KS 1200.1

GND

TURN

ON

12V

+

KS 1200.1

KS 1200.1

KS 1200.1

KS 1200.1

KS 1200.1

KS 1200.1

KS 1200.1

KS 1200.1

KS 1200.1

KS 1200.1

SET PHASE TO

IN

SET INPUT TO

NORMAL

SET PHASE TO

OUT

SET INPUT TO

SLAVE

Input from

head unit

SPEAKER

IN

Output to

next “SLAVE”

amplifier

SET PHASE TO

IN

SET INPUT TO

NORMAL

SET PHASE TO

IN

SET INPUT TO

SLAVE

Input from

head unit

Output to

next “SLAVE”

amplifier

NOTE: 

This wire must run from Negative to 

Negative. You will be driving the speaker wit 
the 2 Positive outputs.

5

6

Bridging

Bridging is a way to combine the power of 2 channels into 1. When you wire the amp 
bridged you have a higher voltage differential b and -. That means MORE POWER. 
If you have 2 identical, properly designed mono amplifiers (They can not be a stereo amp 
that is bridged internally) you can bridge them together to create 1 channel.

Warning

When bridging any amp or amps, each channel sees half the ohm load. 4 ohms bridged is the 
same as 2 ohms stereo. 1 ohm bridged is equal to 1/2 ohm stereo. Check the compatibility of 
you woofers and amplifier before you begin.

KS 1200.1

s or K

S 2500.1

s 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 be set to “Out of PHASE”

Use the configuration below.

AUTO SENSE

The

 KS 1200.1 

and 

KS 2500.1 

uses a Patent Pending Auto Sense Turn-on circuit that 

offers a significant improvement in reliability over previous designs. Instead of relaying on 
the music to supply enough signal to turn the amplifier on. Robert Zeff’s new design 
detects the IC (chip) used in the vast majority of stock head units and amplifiers.

To use the Auto Sense feature on the simply connect the factory speaker wires to the High 
Level Input and watch it work. 

MASTER/SLAVE

The 

KS 1200.1

 and 

KS 2500.1

 are equipped with a MASTER/SLAVE circuit. This allows you to 

control 2 or more amplifiers from one set of controls. All of your gains, crossovers, bass boost, 
subsonic filter and remote level will be controlled from a single “master” amplifier. This 
eliminates all the tedious gain and crossover matching normally needed when using multiple 
amplifiers.

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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