Manual Kicker ix 405d impulse 5 c (page 10 of 12) (English)

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Congratulations! You have just purchased one of the latest in a long line

of exceptional car audio power amplifiers from Stillwater Designs. Your

KICKER IX405D was designed and engineered by the same team which

created many other international award winning KICKER components like the

ZR, ZX, DX, and XS-Series amps. It contains a number of cutting-edge features

that let you build an entire car audio system around this single power

component. It will give you years of outstanding performance and

dependability when installed in a properly designed system.

Thanks for buying KICKER. Enjoy.

KICKER IMPULSE AMPLIFIER FEATURES

Separate electronic crossovers are built in for convenience and allow you to

select full range or highpass for front and rear channels as well as lowpass fre-

quencies for the sub output.

The Kicker Impulse IX405 Amplifier is 2 Ohm stable on all five channels; the

sub out can be bridged to as low as 2 Ohm mono. For connection to the source ,

you have the option of low level RCA inputs or a high level input for use with

radios that don’t have RCA outputs.

Separate KICKEQ bass and treble controls give you the ability to boost low

and high frequencies to tailor the music to your taste. Dash-mounted remote

control lets you adjust bass output levels from your listening position.

Auto-resetting short circuit and overthermal protection circuits are incorpo-

rated to protect the amplifier from failure due to extreme conditions.

State of the art circuitry including MOSFET power supply and glass epoxy cir-

cuit boards are used to ensure many years of trouble free operation.



IMPULSE IX405D

Five-Channel Power Amplifier

Wiring

The preferred method of bringing input signal in to the amplifier is with RCA

cables from a quality tape or CD player. A high (speaker) level input signal may also

be used if your factory deck or aftermarket source does not have low level RCA

jacks. It is not recommended to mix high and low level inputs. Engine noise in the

system will probably result.

Some of the system possibilities are shown in the System Diagrams section of

this manual.

When working with power connections always hook up the ground wire first

and disconnect the ground wire last. Never make any wiring changes with the

amplifier powered up.

The chassis mounted fuse(s) are in place to protect the circuitry of the

amplifier in the event of major trouble. An in-line fuse must be installed within 18

inches of the battery to protect the power wire used to supply current to the

amplifier. For the Kicker Impulse IX405D amplifier a fuse value of 60A and 8 gauge

power wire are recommended. If the power wire is longer than 10 feet, we rec-

ommend that the wire size be 4 gauge to reduce losses.

Any time that a power wire goes through a metal panel such as the firewall,

or if there is any chance of abrasion, it is necessary to use a grommet or other

suitable form of protection to avoid shorts.

The ground wire should be at least 8 gauge, as short as possible and

attached to the body of the vehicle. The ground point must be free from paint

and corrosion. We recommend using the same gauge wire for power and ground.

Mounting the IMPULSE Amplifier

After determining an appropriate mount-

ing location which provides good air circulation

and access to the end panel controls, use the

supplied screws and washers to firmly mount

the amplifier. The amplifier chassis can be

used as a template for the screw locations.

Check to make sure that the mounting screws

will not damage any components on the back

side of the chosen mounting surface.

If a vertical mounting surface is chosen,

we recommend that the heatsink fins run ver-

tically as shown for improved cooling.

The subwoofer remote controller can be

mounted in any convenient location in the

vehicle. It should be within easy reach of the

driver to avoid any dangerous situations while

driving.

EXPLANATION OF INPUT OPTIONS FOR THE IMPULSE IX405D

The IX405D amplifier has five different options for hookup to your source unit.

1. One pair of RCA cables.

2. Two pairs of RCA cables.

3. Three pairs of RCA cables.

4. One stereo pair of high level inputs.

5. Two stereo pairs of high level inputs.

The Parallel input selector switch allows you to select one or two inputs (low level or

high). The sub channel gets its signal from the front and rear inputs, or from separate RCA

jacks, determined by the position of the Sub Channel input switch.

Input Option 1: Using One Pair of RCA Cables

With the Parallel input selector switch in “ON” position, and the Sub input switch in the

“F+R” position, all five channels receive input from the front input RCA’s.

This configuration gives output on all five channels with only one pair of inputs. There

is no fader capability.

Input Option 2: Using Two Pairs of RCA Cables

With the Parallel input selector switch in the “OFF” position, and the Sub input switch

in the “F+R” position, the fader capabilities are enabled and the sub channel gets signals

from both front and rear inputs.

Input Option 3: Using Three Pairs of RCA Cables

If the source unit has a separate sub output or if using an external crossover,

use this configuration. With the Parallel input selector in the “OFF” position and

RCA’s plugged into the sub inputs, you have six inputs and five channel outputs,

all separate

Input Option 4: Using a Stereo Pair of High Level Inputs

With the Parallel input selector switch in “ON” position, and the Sub input

switch in the “F+R” position, all channels receive input from the front high level

inputs. There is no fader capability.

Input Option 5: Using Two Stereo Pairs of High Level Inputs

With the Parallel input selector switch in the “OFF” position, and the Sub

input switch in the “F+R” position, fader capability is enabled and the sub channel

gets signal from both front and rear inputs.

Basic Systems for the IMPULSE Five-Channel Amplifier

Front & Rear Speakers with Subwoofers

*Front & Rear crossovers set to 70 or 110Hz highpass.

Sub crossover set to 70 or 110Hz lowpass.

4 ohm minimum

per subwoofer

Basic Sub Options for the KICKER IX405D

Your Kicker Impulse IX405D has a mono/single channel subwoofer output

section . The minimum total load that the subwoofer section will accommodate is

a 2 Ohm load. Four screw terminals are provided for ease of installation when

multiple woofers are being used, but full output can be had by using only one pair

of terminals.

The following diagrams suggest a number of different subwoofer system

possibilities.

Single Subwoofer

2 or 4 ohm

Subwoofer

4 or 8 ohm

Subwoofer

Dual Subwoofers

Four 2 Ohm Subwoofers

Four 8 Ohm Subwoofers

Three DVC Subwoofers

4 ohm minimum

per subwoofer

Adjustments and Controls

Setting Gain Control

The gain control is provided for level matching purposes. The control does

not give the amplifier any more power by turning it up. Its purpose is to adjust

the sensitivity of the amplifier in relation to the output level provided by the

source.

Start with the amp gains set to minimum by turning the controls counter-

clockwise. Turn the source level up until distortion is barely audible. Then turn the

source down slightly. This will typically be at about 85 to 95% of full volume. Raise

the front amplifier gain control until distortion is just audible in the front speak-

ers. Now the deck is matched to the front amplifier channels. Turn the source

down to a realistic listening level.

Turn the rear amplifier gain control up until the desired front/rear balance is

achieved.

Turn the remote subwoofer control all the way up. Turn the sub gain adjust-

ment on the amplifier chassis up to provide the bass level desired.

Note: As the KICKEQ controls are turned up to provide additional bass or tre-

ble, the overall signal goes up. It may be necessary to readjust the gain controls if

the KICKEQ controls are turned up very much.

Setting KICKEQ™ Controls

The Bass and Treble controls on your Impulse Amplifier are provided to help

tune your system for ideal sound quality. After the system is installed and the

vehicle is put back together, do a listening test with music that is typical of the

type you normally listen to.

Initially set the tone controls on the source unit to flat and turn the KICKEQ™

controls fully counter-clockwise. Depending on your personal taste and the speak-

ers used in the system, you may want to increase the high or low frequencies by

turning the KICKEQ™ controls clockwise. Remember that once the vehicle is in

motion there will be an apparent loss of bass due to the masking effect of road

noise. Do not attempt to make adjustments while the vehicle is in

motion. It is safer to pull off the road to make changes.

Never change the crossover settings while the amplifier is on. A

loud pop will result which could destroy speakers or cause hearing loss.

Troubleshooting

The LED mounted on the end panel of the amplifier lights up in two different

colors depending on the condition of the amplifier. Green indicates that the

amplifier is turned on and no trouble exists. When it turns red this indicates that

the protection circuit has been engaged. The LED on the top of the amplifier

chassis indicates that the amplifier is on. When the protection circuit is engaged,

this LED turns off.

Green power indicator off, no output:

• With Volt Ohm Meter (VOM) check:

1. +12v power terminal

2. Ground terminal

3. Remote turn-on lead

Green power indicator on, no output:

• Check RCA and connections

• Test speaker outputs with known good speaker

• Check function of source unit

• With VOM in AC volts position check RCA for signal

No output from one channel:

• Check RCA and speaker connections for that channel

• Swap RCA connections from left to right

• Swap speaker connections between channels

Red LED protection indicator is lit and there is no output:

Case 1: Amp is very hot

• Thermal protection is engaged. Check for proper impedance at

speaker terminals. Also check location of amplifier to ensure proper

air flow around heatsink.

Case 2: Output resumes momentarily when system is turned off and

back on.

• Short circuit protection is engaged. With VOM check for short

between speaker positive and negative, and between speaker

terminals and ground.

Alternator noise (a whining that varies with engine RPM)

• Make sure that the ground for the source is as short as possible

and connected to bare chassis metal. The stock radio ground may

not be sufficient.

• Check RCA cable routing and condition. Keep RCA cables away from

all power wires.

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Kicker ix 405d impulse 5 c Manual

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