MKICKER,
1X252, 1X402, 1X702, 1X1302, IX2302
Stereo Power Amplifier
Congratulations! You have just purchased one of the latest in a long line of
exceptional car audio power amplifiers from Stillwater Designs. Your KICKER
impulse was designed and engineered by the same team which created
many other international award winning KICKER components like the Z/?, ZX,
and XS-Series amps. It contains a number of cutting-edge features to give
you outstanding performance and dependability when installed in a properly
designed system.
Thanks for buying KICKER. Enjoy.
Two sets of RCA jacks on each Kicker Impulse amplifier allow you to build multiple
amplifier systems without having to use RCA splitter cords to distribute the signal Now
it is simply a matter of bringing one set of RCAs into the first amplifier, then using the
output RCA jacks as a feed to the next amplifier
Amplifiers are stable at 2 Ohms stereo and as low as 4 Ohms in mono
Input connections are included for high and low level signals for use with radios that
have either RCA or speaker level outputs
An electronic crossover is built in for convenience and allows you to select high pass
for satellite speakers, low pass for subwoofers, or bypass for full range operation In
full range configuration the Kicker Impulse amplifiers will operate stereo and mono at
the same time
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
OPTIONAL HIGH LEVEL IN
RF+ RF WC LF
AMiWCA’5 MUSIC MACHMESs,
Wiring the KlCKER Impulse Amplifier
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 Regardless of which input is used the output RCA jacks on your Kicker
Impulse amplifier will provide a low level signal for multiple amplifier configurations
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 This
fuse has to be at least as high of a value as the amplifier is supplied with In-line
fuse and recommended wire size are as folows
IX 2302
IX 1302 6Ga 50A fuse
IX 702 8Ga 30A fuse
IX 402 IOGa ZOA fuse
IX 252 IOGa 15A fuse
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 as short as possible and attached to the body of the
vehicle The ground point must be free from paint and corrosion Use the same
size wire for ground connection as is used for power
4Ga
8OA fuse
Mounting the KICKER 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, it is
recommended that the heatsink fins run
vertically as shown for improved cooling
RCA OUT -
RCA IN -
Basic Systems for the IMPULSE Two-Channel Amplifier
Stereo Two Channel
FULL RANGE SPEAKERS
INTERNAL CROSSOVER
2Q MIN/ ‘CHANNEL
TURNED OFF
Stereo/Mono Hookup using IMPULSE X21ooi
Two-Way Subwoofer Crossover
FULL RANGE SPEAKERS
INTERNAL CROSSOVER
TURNED OFF
4R MIN/CHANNEL
RCA OUT
RCA IN
*CAPACITORS
*These components are included in the fmpufse
X21001 subwoofer crossover-available separately
Bi-Amp System for the IMPULSE Two-Channel Amplifiers
SATELLITE SPEAKERS
2Q MN/CHANNEL
INTERNAL CROSSOVER
SET TO HP, 70 or 110 HZ
SUBWOOFER
4Q MINIMUM
RCA IN
INTERNAL CROSSOVER
SET TO LP, 70 or 110 Hz
Adjustments and Controls
.-.
Setting Gain Control
The gain control is provided for level matching purposes The control
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 gain set to minimum by turning the control counterclockwise Turn the source level up until distortion is barely audible Then turn it
down slightly This will typically be at about 85% to 95% of full volume Raise the
amplifier gain until distortion is just audible The gain is now set correctly Check
the level with cd/tape and tuner to make sure the adjustment is correct for all
sources
Setting KICKEQTM 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 K/CKEQTM
controls fully counter-clockwise Depending on your personal taste and the
speakers used in the system, you may want to increase the high or low
frequencies by turning the K/CKEQTM 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
motion
It is safer to pull off the road to make changes
Never change the crossover settings while the amplifier is on
result which could destroy speakers or cause hearing loss
Do not attempt to make adjustments while the vehicle is in
A loud pop will
does not
5
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:
l
With Volt Ohm Meter (VOM) check
1 +I 2v power terminal
2 Ground terminal
3 Remote turn-on lead
Green power indicator on, no output:
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Check RCA and connections
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Test speaker outputs with known good speaker
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Check function of source unit
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With VOM in AC volts position check RCA for signal
No output from one channel:
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Check RCA and speaker connections for that channel
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Swap RCA connections from left to right
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Swap speaker connections between channels
Red LED protection indicator is lit and there is no output:
Case 1:
Case 2:
Amp is very hot
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Thermal protection is engaged Check for proper impedance at
speaker terminals Also check location of amplifier to ensure proper
air flow around heatsink
Output resumes momentarily when system is turned off and
back on
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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)
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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
l
Check RCA cable routing and condition Keep RCA cables away from
all power wires
Model
RMS Power (wetts/chanoel) RMS Power Iwatk/channel) RMS Power (watts) mmenslons (Inches)
@ 12 5V, 453 stereo, 0 005% THD, @ 12 5V, 2B stereo,0 2% THD. @ 12 5V, 40 bridged mono, 2 5Hx9 SWX-1
all channek driven all channels drlven 0 2% THD
IX2302 230x2 360x2 720 189
IX1302
130x2 200x2 400 138
IX702 70x2 105x2 210 98
IX402 40x2 60x2 120 78
IX252 2sx2 30x2 60 63
Dvnamlc Power (wattr/channell
@ 14 4V, 40
Stet-eo,
all channels driven
IX2302 310x2
IX1302 175x2
IX702 100x2
IX402 55x2
IX252 30*x2
0 095% THD,
Dvnamic Power IwattUchannell Dvnamlc Power (watts)
@ 14 4V, 2Q Stereo, 0 2% THD. @ 14 4V, 4Q bridged mono,
all channels driven 02%THD
450x2 900
260x2 520
140x2 280
80x2 160
40x2 80
'02%
Frequency Response SOHz2OkHzfl5dB
Input Sensitivity High level IV-IOV
SignalWNoise Ratio >95dB,aweighted, reratedpower
Lowlevell50mV 3 OV
Active Electronic Crossover 18dB/octave,selectable @ 70Hz or110 Hz;selectable high pass, low pass, all pass
K/CKEOTy BassBoost Variable to +18dB,centered 0 40Hz
K/C/EON TrebleBoost Variableto+12dB,centered%18kHz
mmenrlonr (mm)
65Hx241Wx-L
482
350
248
198
160
7
Stillwater Designs warrants this product to be free from defects in material and workmanship under normal
use for a period of
or one (1) year from
labeled ‘6 Stock it is warranted for one (1) year from date of purchase regardless of place of installation Should
service be necessary under this warranty for any reason due to manufacturing defect or malfunction during the
warranti period Stillwater Designs will replace or repair (at its discretion) the defective merchandise with
equivalent merchandise at no charge Warranty replacements on B-Stock merchandise may have cosmetic
scratches and blemishes Discontinued products may be replaced with equivalent products
This warranty is valid only for the original purchaser and is not extended to owners of the product subsequent
to the original purchaser Any applicable implied warranties are limited in duration to a period of the express
warranty as provided herein beginning with the date of the original purchase at retail and no warranties whether
express or implied shall apply to this product thereafter Some states do not allow limitations on implied warranties
therefore these exclusions may not apply to you
This warranty gives you specific legal rights: however you may have other rights that vary from state to state
three (3) years from date of original purchase when installed by an Authorized KICKER Dealer
date of original purchase If not installed by an Authorized KICKER Dealer
If this product is
WHAT TO DO IF YOU NEED WARRANTY OR SERVICE
Defective merchandise must be returned to your local Authorized Stillwater Designs (Kicker/Impulse) Dealer
for warranty Assistance in locating an Authorized Dealer can be obtained by writing or calling Stillwater Designs
direct You can confirm that a dealer is authorized by asking to see a current authorized dealer window decal
If it becomes necessary for you to return defective merchandise call the Kicker Customer Service Department
at (405)624-8510 for a Return Authorization (RA) number Package all defective items in the original container or in
a package that will prevent shipping damage and return to
The RA number must be clearly marked on the outside of the package Return only defective components
Non-defective items received will be returned freight collect
Include a dated proofaf-purchase from an Authorized Dealer Warranty expiration on items returned without
proof-of-purchase will be determined from the manufacturing date code Coverage may be invalidated if this
date is greater than one (1) year previous to the date Item is sent in Freight must be prepaid; items received
freight collect will be refused
Failure to follow these steps may void your warranty Any questions can be directed to the Kicker Customer
Service Department at (405)624-8510
Stillwater Designs, 5021 North Perkins Road, Stillwater, OK 74075
This warranty is valid only if the product is used for the purpose for which it was designed
not cover:
l
Products purchased
l
Damage due to improper installation
l
Damage caused by exposure to wuter, excessive
from an unauthorized dealer
heat, chemical cleaners, and/or UV radiation
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Damagethrough negligence, misuse, accident or
abuse Repeuted returns for the same damage may l Products with tampered or missing barcode labels
be considered abuse
l
Freight damage
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The cost of shipping product to Stillwater Designs
Stillwater Designs maintains a goal of 24-hour service for all returns
l
Items previously repaired or modified by any
unauthorized repair facility
l
Items returned from unauthorized individuals or
dealers
l
Return shipping on nondefective items
l
Products returned without a Return Authorization
(RA) number
Delays may be incurred if
It does
lack of replacement inventory or parts is encountered
Contact your International Stillwater Designs dealer or distributor concerning specific procedures
for your country’s warranty policies
STI LLWITER
CC
WARNING1
P 0 Box 459 l Stillwater, Oklahoma 74076 l US A l 405 624-8510
KICKER components are capable of producing sound levels that can permanently damage
your hearing! Turning up a system to a level that has audible distortion is more damaging
toyourearsthan listening toan undistorted system atthesamevolume level Thethreshold
1 of pain is always an indicator that the sound level is too loud and may permanently
damage your hearing Please use common sense when conlrolllng volume!
JANUARY 1999
Outside the USA, please complete and mail to
IllIll
Il...l.I..IIl...I...I.II..I.I..I.I..II...I...I...III
your country’s National KICKER Distributor.
You can get this address from the retail store
where you purchased your KICKER products.
BUSINESS REPLY MAIL
FIRST-CLASS MAIL PERMIT NO. 112 STILLWATER OK
POSTAGE WILL BE PAID BY ADDRESSEE
M KICKER
STILLWATER DESIGNS
P 0 BOX 459
STILL WATER OK 74076-9907
NO POSTAGE
NECESSARY
U.S.2
Warranty Registration: return for
FREE MKICKER
“.S.A
DECAL
AND WEARABLES CATALOG
Name(‘)
Addrew)
Kicker ID#l’l
What KICKER Product(s) did you purchase?
wSerlal Number
. . . . . . . . .I -.
(381Model
What types of magazmes do you read frequently?
4 Car S1ereo ““~Stereo ,d
dl sport\ dl ScKmce
What types of music do you listen to frequently?
(-a Rock a Pop ,a Country Id Rap
‘clJazz 4 Ch\\Gdl d New Age c32ba Allemalwc
Do you belong to any of the followmg?
fs3Ja ,ASCA ,@+m “SAC ,@$)a CMMA d WAC
Muw f2*~ Automotlvc
‘2”ClFlllLL”4 1241~ New\
~~9~Date Purchased:
Place Purchased:
wStore Name
(al)Address
Wity
W3 tate
In what vehicle will you Install these products?
Year (44
Modeb ,L/1 Il,a,,di,h,dl
Who will perform the Installation? (,@a store above
,4sjQ Independent Profe\w~nal d! Myelf (d Friend
Month
Zipw
MakewcQ ~..~d,
Day Year
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