Kicker IX405D Owner's Manual

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 fre­quencies 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 incorpo­rated to protect the amplifier from failure due to extreme conditions.

State of the art circuitry including MOSFET power supply and glass epoxy cir­cuit boards are used to ensure many years of trouble free operation.

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IMPULSE IX405D

Five-Channel Power Amplifier

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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 rec­ommend 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 mount­ing 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 ver­tically 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.

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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.

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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.