MOSFET POWER AMPLIFIERS
Installation Instructions / Owner's Manual
400MSX
600MSX
SAFETY PRECAUTIONS
Fuseamplifier'spowerwireatthebattery.
Be sure to fuse the power wire within 12" of the car's battery. This will protect the car's
battery in case of a short circuit between the power amplifier and battery. THIS IS A MUST,
the amplifier's built-in fuse will only protect the power amplifier not the car's battery!
Usehighgradewireconnectors.
To ensure maximum power transfer and secure safe connections, it is recommended to use
high grade connectors where needed.
Donotrunanywiresunderneathvehicle.
Exposed wires have a chance of being cut or damaged. It is best to run all wires through the
vehicle under the carpet and/or side panels. This lends to a cleaner installation and less risk of
damage.
Usecautionwhenmountingamplifier.
Remember there are many electrical wires, gas lines, vacuum lines, brake lines as well as a gas
tank in the automobile. Make sure you know where they are when mounting the amplifier to
avoidpuncturinglines, shortingwiresordrillingholesinthegastank.
Runsignalwiresawayfromelectricalwires.
To avoid possibility of induced noise from the car's electrical system (i.e. popping noises or
engine noise), run wires away from the car's electrical wiring.
Makeallgroundwiresasshortaspossibleandatthesamepoint.
In order to reduce the chance of ground loops (i.e. engine noise), make the grounding wire as
short as possible to reduce the wire's resistance. Also, when using multiple components, make
sureallunitsaregroundedatthesamepoint.
Avoidsharpedgeswhenrunningthewires.
To avoid the possibility of power, signal or speaker shorts, be careful not to allow the
amplifiers wires to come in contact with sharp edges. Use a grommet to protect the wire when
runningthroughthefirewall.
2
FEATURES AND BENEFITS
DCOffsetProtection
This circuit protects the output of the amplifier against DC voltage. If for some reason DC
voltage is detected at the output stage, the amplifier will shut down protecting the speakers
from direct current.
ShortCircuitProtection
The circuit protects the amplifier from damage due to a short found in the speakers or wiring.
If one of the speakers or its wiring comes in contact with ground, the amplifier will shut down.
To resume normal operation, correct the problem and turn the head unit off, then back on.
Theamplifierwillresetandplayagain.
Thermal Protection
To protect the amplifier circuitry against damage caused by prolonged exposure to high
temperatures, a thermal protection circuit is activated if the amplifier reaches excessively
high operating temperature. Once the thermal circuit is activated, the amplifier will shut
down to cool off. The Amplifier will automatically turn back on once it cools down to a safe
operating temperature.
ProtectionIndicator
This red diagnostic L.E.D. indicates that the amplifier has gone into protection. Once on, the
amplifier will have no output. To resume normal operation, turn head unit off and back on again.
If the amplifier immediately goes back into protection, check for high temperature, short
circuitsorlowimpedance.
Built-inCrossover
The amplifier is equipped with a built-in variable low pass crossovers. The crossover features
a variable frequency selection (40Hz ~ 130Hz) for precise high or low pass filtering.
BassBoost
For added low frequency performance the amplifier is equipped with a variable 12 dB bass
boost.
3
PowerFusing
Thisprotectstheamplifieragainstshortcircuitsandexcessivecurrent.
Remote Turn-on
Automatically turns amplifier on when connected to the head unit's remote output. The
amplifier will turn on and off with the head unit to save current consumption. This control also
operates the reset circuit for the amplifier's protection. It must be connected with the head
unit in order to reset protection circuits.
Gold Plated connections
For positive contact, maximum power and signal transfer with minimal resistance.
AdjustableInputSensitivity
Allows you to fine-tune the level matching between your source and the power amplifier. The
controls have been set at the factory to accept average output of most radios, however, fine
tuning may be necessary to optimize signal to the amplifiers input stage.
HighLevelInput
Allowingforintegrationwith"FactorySoundSystems".
StableTo2Ohm
Stability to 2 ohms allowing multiple speaker connections.
4
MOUNTING LOCATION
Before you start the installation, it will be necessary to find a mounting location for the
amplifier. Find a location in which the amplifier will receive adequate ventilation in order to
dissipate the heat it develops during operation. Two popular mounting locations are in the
trunkorundertheseat.
Select the location in which you wish to mount the amplifier. Use caution when mounting
amplifier, there are many wires, gas lines, vacuum lines, brake lines as well as a gas tank in
the automobile. Make sure you know where they are when mounting the amplifier to avoid
puncturing lines, shorting wires or drilling holes in the gas tank. Once you are ready, use a
pencil to mark the mounting holes in the bottom panel. After you have marked the locations of
the holes move amplifier out of the way and drill small starter holes to make the tapping
screws easier to install. Use provided screws to tighten down the amplifier.
LP
X-over
85
Bass
Boost
Level
Input
Hi-Level Input
L+ L- R+ R-
Left
PROTECTION
POWER
40
130
0
12
Min
Max
Right
5
POWER CONNECTIONS
Speaker Output
B+
REM
GND
Fuse
IN-LINE PPOWERR FUSE
MOUNTED WWITHIIN 12"
RADIO'SS REMOTE
TURN-ONN OUTPUT
FROM BBATTERYY RECOMMMMENDED
(NOT PROOVIDED)
-
+
94.7
CAR BAATTERY
+12V
IMPORTANT! Before making any connections, disconnect the car's battery until the
installation is completed to avoid possible damage to the electrical system.
Connecttheamplifiertothecar'sbattery.
At times, the amplifier will need to draw large levels of current that cannot be provided by any
circuit in the car's fuse box. We recommended using a 4 to 8 gauge power wire for your
connections depending on the amplifier and length of the wire. Strip one end of the wire to
connect to the terminal on the amplifier marked B+. Loosen screw terminal and connect bare
wire and tighten. Use caution to make sure no stray wire stands come in contact with
surrounding terminals causing short circuits. Run the wire directly to the positive terminal of
the car's battery. Make sure to use an in-line fuse within 12" of the car's battery to protect
the electrical system and amplifier against short circuits and/or power surges.
Connect the ground terminal of the amplifier to the car's chassis.
For the ground connection, use a 4-8 gauge wire (black) to connect to the terminal marked
GND and then connect it to the car's chassis. Try to keep the length of the cable as short as
possible, preferably less than 6". Also make sure that the point on the car where the
connection is to be made is free of paint and dirt.
Connect the remote terminal of the amplifier to a switchable +12V source.
This connection allows the amplifier to be turned on and off with the power control of the
radio. If the radio has a REMOTE output terminal, connect it to the amplifier's terminal
marked REMOTE (using a 16 gauge wire or heavier). Now when the radio is turned on, the
amplifier will automatically turn on.
6
SIGNAL CONNECTIONS
Connecttheoutputoftheheadunit(AM/FMcassetteplayer, CD, orDAT)
totheRCAinputterminalsoftheamplifier.
To make these connections, we recommend high quality RCA cables, which are available at your
local car audio retailer. Run signal wires away from electrical wires to avoid possibility of
inducednoisefromthecar'selectricalsystem(i.e. poppingnoisesorenginenoise).
TWO CHANNEL SIGNAL CONNECTIONS
LP
X-over
85
Bass
Boost
Level
Input
Hi-Level Input
L+ L- R+ R-
Left
PROTECTION
POWER
40
130
0
12
Min
Max
Right
94.7
7
HIGH LEVEL CONNECTIONS (OPTIONAL)
If a low level RCA signal source is not available, you may still wire the amplifier with high-level
or speaker level outputs from your head unit. However, only speaker leads from a "floating
ground" system may be used (see diagram below). Use the provided plug to make the following
connections .
Note: The speaker leads from a "common ground" head unit systems should not be connected
to the hi-level input terminals of the following connections.
CAUTION! Before making any connections determine the type of radio to avoid possible
damage to amplifier and/or radio.
TWO CHANNEL CONNECTIONS:
FLOATING GROUND RADIO (MOST COMMON TYPE)
LP
X-over
85
Bass
Boost
Level
Input
Hi-Level Input
L+ L- R+ R-
Left
PROTECTION
POWER
40
130
0
12
Min
Max
Right
94.7
LEFT +
LEFT -
RIGHT +
RIGHT -
8
SPEAKER CONNECTIONS
Make the speaker connections using speaker wire that is at least 10 gauge or
heavier.
As with any audio component, proper phasing of the amplifier and speakers is essential for
strong bass response. When connecting, make sure that positive (+) from the amplifier is
connectedtothepositive(+)ofthespeaker, andthesamefornegative(-).
SINGLE SPEAKER CONNECTION
Speaker Output
B+
REM
GND
Fuse
-
+
4 Ohm Sppeakers
(2 Ohm Miinimum)
TWO SPEAKER CONNECTION
Speaker Output
B+
REM
GND
Fuse
-
-
+
4 Ohm Sppeakers
+
9
SETTING THE CROSSOVER AND BASS BOOST
Select your crossover type and frequency.
The amplifier is equipped with a built-in variable low -pass crossover network allowing you to
select the desired crossover point for your subwoofers.
manufacturesrecommendedcrossoverpoint.
Please refer to speaker
Bass
Boost
LP
X-over
85
40
130
0
12
Select the crossover point
for your speakers.
You can add up to 12dB bass boost by
increasing the Bass Boost control.
FINE TUNE THE SYSTEM
Fine tune the amplifier's input sensitivity.
Level
Access to the gain sensitivity control for the California
amplifier is located on the side panel. This gain control has
been included to allow adjustment to properly match the
output of the radio. This is one of the most misunderstood
adjustments. By rotating the control in the clockwise
direction, the amplifier's input will become more sensitive and
Min
Max
the music will play louder. This is not a volume control and you will not get more power out of
the amplifier in the maximum position! It may seem to deliver more output, but actually the
system is only playing louder faster as you turn the volume control on the radio. Ideally, to
properly level match the system the goal is to achieve maximum output from the amplifier
withoutdistortionatabout3/4ofthevolumecontrol.
To determine if the amplifier's gain is set properly, turn the system on and slowly increase the
volume control. You should be able to use about 3/4 volume before the system gets loud but
not distorting. It is very important when making these adjustments that you do not over drive
the speakers (at point of distortion) this will cause permanent damage to the speakers. If you
are unable to achieve 3/4 volume before distortion you will need to adjust gain control (in this
case you would reduce the gain). The gain controls should be adjusted very slowly. It may help
to have another person to assist you by adjusting the gain controls while you listen for
distortion.
10
TROUBLE SHOOTING THE SYSTEM
We have put together this trouble-shooting guide if you experience problems after installing
the amplifier. Please keep in mind that the majority of problems incurred are caused by
improper installation and not the equipment itself. In addition, there are many components in
the system that could cause various signal problems such as inducted electrical noise and
enginenoise.
Before you can properly address the problem, you must first find the component that is
causingtheproblem. Thiswilltakepatienceandaprocessofelimination.
LOOK FOR....
SOLUTION
NoOutput
Blown fuse
Replace
Bad RCA Cable(s)
Replace
+12V at power terminal
+12V at remote terminal
Grounding point clean and tight
Head Unit's fader not in center position
Check connection
Check connection
Check for ground w/meter
Set to center position
Low Output
Checkleveladjustments
Re-adjust
Replace
Bad RCAcable(s)
Improperlevelmatching
Re-adjust
EngineNoise
Grounding points are clean and tight
Ground all components at same point
Check for ground w/meter
Ground at same point
Change for better ground
Replace
Bad RCA cable(s)
HighQuality shieldedRCA cables
Rejects inductednoise
Low Vehicle charging system and/or battery Fix and/or replace
ProtectionL.E.D. Illuminated
Speaker short
Check speaker connection
for short circuit
Speaker grounding out
Impedance too low
Overheating
Make sure speaker wires
do not touch chassis ground
Check speaker impedance
(Min 2 ohm Stereo, 4 Mono)
Check mounting location
for Adequate air Circulation
Speaker impedance too low
11
SPECIFICATIONS
400MSX
600MSX
Max Power @ 4 Ohm
RMS Power @ 4 Ohm
Max Power @ 2 Ohm
RMS Power @ 2 Ohm
1 x 400W
1 x 600W
1 x 200W
1 x 300W
1 x 600W
1 x 850W
1 x 300W
1 x 410W
THD @ RMS Power
<0.07%
<0.07%
Frequency Response
10Hz ~ 94Hz (at-1dB)
>105dB
10Hz ~ 94Hz (at-1dB)
>105dB
Signal To Noise
RCA Input Sensitivity
RCA Input Impedance
High Level Input Impedance
Load Impedance
200mV ~ 8V
16K Ohms
200mV ~ 8V
16K Ohms
100 Ohms
100 Ohms
2 ~ 8 Ohms
Low Pass
2 ~ 8 Ohms
Low Pass
Crossover Type (12dB/Octave)
Crossover Frequency (Variable)
Bass Boost @ 45Hz (Variable)
Damping Factor
40Hz ~ 130Hz (at-3dB)
0dB ~ 12dB
250
40Hz ~ 130Hz (at-3dB)
0dB ~ 12dB
260
Power Terminal Size
4 Gauge
4 Gauge
Speaker Terminal Size
Fuse Value (ATC/ATO Type)
Size (H x D x W)
6 Gauge
6 Gauge
2 x 20A
2 1/4" x 9 3/4"x 11 3/4"
3 x 20A
2 1/4" x 9 3/4"x 16 1/8"
Due to continuing product improvements, specification to change without notice.
12
LIMITED WARRANTY
Profile Consumer Electronics, Inc. warrants this product to be free from defects in
material and workmanship for a period of One (1) Year from the date of sale to the
original consumer purchaser. If this product is proven to be defective within this one
year period, Profile will repair it when said product is returned, with a copy of the
datedsalesreceipt, freightprepaidtoProfile.
This warranty is valid only in the United States. This warranty does not cover any
expense incurred in the removal and/or re-installation of this product. This warranty
does not cover any Profile product damaged by accident, misuse, abuse, improper line
voltage, fire, water, lightning, or other acts of God. This warranty is void if any parts
and/or service is/are furnished by anyone other than Profile. This warranty is void if
thefactoryappliedserialnumberisalteredorremovedfromtheproduct.
This warranty does not cover cartons, cases, batteries, broken or marred cabinets,
magnetic tapes, or any other accessories used in connection with this product or
consequentialdamagesduetoadefectintheproduct.
Any implied warranties, including fitness for use and merchantability, are limited in
duration to the period of the express warranty set forth above. No person is
authorized to assume for Profile any other liability in connection with the sale of the
product. Profile expressly disclaims liability for incidental and consequential
damages that might be caused by this product. The remedies provided under this
warranty are exclusive and lieu of all others.
This warranty gives you specific legal rights. You may have other rights which vary
from state to state or province to province. Some states or provinces do not allow
limitation on how long warranties last, so the above may not apply to you. Additionally,
some states/provinces do not allow the exclusion to limitation of consequential or
incidentaldamages, sotheabovelimitationorexclusionmaynotapplytoyou.
*Inthespacebelow, recordthemodelnumberthatislocatedonthebackoftheunit
alongwiththepurchasedateandlocation.
ModelNumber__________________
PurchaseDate __________________ WherePurchased _________________
RETAIN YOUR SALES RECEIPT ALONG WITH THIS CARD. IT IS YOUR ONLY
VALIDDOCUMENTTORECEIVEWARRANTYSERVICE.
WARRANTY REPAIR POLICY
In the unlikely event of product failure, the following procedures
should be followed
1) The unit must be under the 1-year warranty period.
2) The unit must have no physical damage.
3) A copy of the original proof of purchase must be sent with the unit.
4) Include a brief description of the problem or failure with the unit.
5) Include the return street address and daytime telephone number.
6) Allow 2~3 weeks for repair (this period includes shipping time).
Send unit to :
PROFILE CONSUMER ELECTRONICS, INC.
15060 SHOEMAKER AVE
SANTA FE SPRINGS, CA 90670
TEL: (562)404-9393
Note:
All units failing to meet the above requirements will be
subject to a charge and or may not be repaired.
By
PROFILE CONSUMER ELECTRONICS, INC.
15060 SHOEMAKER AVE
SANTA FE SPRINGS, CA 90670
TEL: (562)404-9393 FAX: (562)404-9433
WWW.PROFILEUSA.COM
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