POWERCLASS
PC4200 / PC4400 / PC4800 / PC6600 OWNER’S MANUAL
™
CONTENTS
(click on a topic to view)
CONGRATULATIONS
•
FEATURES / SPECIFICATIONS
•
FEATURES / SPECIFICATIONS (cont.)
•
INSTALLATION
•
WIRING
•
WIRING (continued)
•
POWER / GROUND
•
POWER, GROUND, and REMOTE
•
SPEAKER WIRING
•
BRIDGING
•
REAR ENDPLATE DIAGRAMS
•
FRONT ENDPLATE PC4200 / PC4400
•
FRONT ENDPLATE PC4800
•
QBASS / QBASS REMOTE
•
CROSSOVER OPERATION
•
FREQUENCY DETENT CHARTS
•
INPUT COMBINE / GAIN
•
THERMAL MANAGEMENT
•
TROUBLE SHOOTING
•
SYSTEM DIAGRAM ONE / TWO
•
SYSTEM DIAGRAM THREE
•
SYSTEM DIAGRAM FOUR
•
SYSTEM DIAGRAM FIVE
•
SYSTEM DIAGRAM SIX
•
BLOCK DIAGRAM 4200 / 4400
•
BLOCK DIAGRAM 4800
•
FRONT ENDPLATE PC6600
•
INPUTS
•
BLOCK DIAGRAM 6600
•
WARRANTY
•
Congratulations and thank you.....
for choosing
proudly design, engineer and manufacture audio products at our facility in
Phoenix, Arizona. Our award winning engineering team utilizes innovative
technology to consistently deliver
sound quality, reliability, and value. This
our commitment to offer you unpar alleled versatility and quality for years of
dependable service and listening enjoyment.
PrecisionPower
audio epuipment. At
Absolutely State of the Art
PrecisionPower
PrecisionPower
TM
performance,
product reflects
we
Service
Do not attempt to service
Performing exploratory surgery on your audio equipment yourself
will void the warranty. Many parts of your
are custom built to our specifications. Our factory parts are not
made available to anyone else nor are they for sale. Our goal
is to make sure that your
sound as good as the day it was purchased. Contact your
authorized
service through
PrecisionPower
PrecisionPo wer
PrecisionPower
PrecisionPower
dealer about obtaining any warranty
.(See Warranty insde back cover)
products yourself.
PrecisionPower
product will always
gear
FOR YOUR RECORDS:
Model
Serial Number
Purchase Date
Caution!
The extended use of a high powered audio system may
result in hearing loss or damage. While
systems are capable of
incredible accuracy, they are also designed for you to
enjoy at more reasonable levels all of the sonic subtleties
created by musicians. Please observe all local sound
ordinances.
"Concert Level"
PrecisionPower
volumes with
BACK TO CONTENTS
Your new amplifier incorporates some or all of the following features:
Adaptive MOSFET Switching Power Supply
Fully Complementary Darlington Output Stage
AP III
Protection Circuitry (PC4200, PC4400, PC6800)
AM IV
Protection Circuitry (PC4800)
QBASS
™
QBASS PLUS
QBASS REMOTE
PowerLock
Detented, Variable 3-way Internal Crossover
Non-Fading Sub Channel
Balanced Differential Input Stage
High Voltage Input Capability with Input Attenuation Switch
Gold Plated RCA Input and Output Connectors
Mixed Mono/Stereo Operation
3 Year Warranty when installed by an Authorized
Completely Designed And Handcrafted In The USA
Specifications
Power Bandwidth: 4.5 Hz - 100 kHz
Total Harmonic Distortion: 0.02 %
Input T opology: Differential
Input Sensitivity: 150mv - 12 volts RMS
Input Impedance: 10k Ohms
Load Impedance (stereo) 2 - 8 Ohms
Load Impedance (bridge) 4 - 8 Ohms
Supply Voltage 11 - 15 volts
Damping Factor >500
Slew Rate >50 V/µS
Idle Current: PC4200 / PC4400 - 1.5 Amps
FEATURES / SPECIFICATIONS
Bass Boost (PC4200, PC4400)
™
(PC4800, PC6600)
™
Compatible (PC4800, PC6600)
Speaker and Power Wire Connectors
PC4800 - 3.0 Amps
PC6600 - 2.0 Amps
PrecisionPower
Dealer
Continuous Output Power
PC4400
50 WRMS x 4 @ 4Ω per channel 100 WRMS x 4 @ 4Ω per channel
100 WRMS x 4 @ 2Ω per channel 200 WRMS x 4 @ 2Ω per channel
200 WRMS x 2 @ 4Ω bridged 400 WRMS x 2 @ 4Ω bridged
PC4200 PC6600
25 WRMS x 4 @ 4Ω per channel 50 WRMS x 6 @ 4Ω per channel
50 WRMS x 4 @ 2Ω per channel 100 WRMS x 6 @ 2Ω per channel
100 WRMS x 2 @ 4Ω bridged 200 WRMS x 3 @ 4Ω bridged
PC4800
1
BACK TO CONTENTS
FEATURES / SPECIFICATIONS
QBASS
QBASS
™
and
QBASS PLUS
™
(PC 4200, PC4400, and PC 6600)
™
Up to 12dB of Boost centered at 40Hz, with a Q-Factor of 2.
™
QBASS PLUS
(PC 4800)
Up to 18dB of Boost with selectable center frequency at 30Hz, 36Hz,
44Hz or 60Hz. Selectable Q of 2 or 4. Optional remote mounted
Boost Control.
™
Optional
QBASS REMOTE
(PC 4800)
This boost control can be mounted
in the dash and will supersede the
boost control on the amplifier endplate.
™
Optional
allows one
operate multiple amplifiers. Each
QPORT
QPORT
QBASS REMOTE
™
has outputs for four amplifiers
as well as another
expansion. See your authorized
expansion module
QPORT
™
to
™
for greater
PrecisionPower
dealer for more information!
Crossover Specifications
PC4200 / PC4400
Front - 12dB/Octave, Detented High Pass 20-5kHz
Rear - 12dB/Octave, Selectable Detented High or Low Pass 20-5kHz
RCA Out-Summed Mono 24dB/Octave, Linkwitz-Riley Low Pass, 90Hz
QBASS
™ on Rear Channel
Specifications
BASS REMOTE
Q
QBASS
™
0
+18
™
Designed and handcrafted in the USA
PC4800
Front - 12dB/Octave, Detented High Pass 20-5kHz
Rear - Choice of 12dB/Octave Detented High Pass 20-5kHz, or
Summed Mono 24dB/Octave, Linkwitz-Riley Detented Low Pass 44-315Hz
RCA Outputs will be the opposite of your Rear Crossover choice.
QBASS PLUS
PC6600
Front - 12dB/Octave, Detented High Pass 20-5kHz
Rear - 12dB/Octave, Detented High Pass 20-5kHz
Sub-Summed Stereo 24dB/Octave, Linkwitz-Riley Low Pass at 90Hz
QBASS PLUS
Dimensions
PC4200
Length - 12.22"
Height - 2.25"
Width - 8.9"
™ on Rear Channel
™ on Sub Channel.
PC4400
Length - 13.72"
Height - 2.25"
Width - 8.9"
PC6600
Length - 19.72"
Height - 2.25"
Width - 8.9"
2
PC4800
Length - 23.72"
Height - 2.25"
Width - 8.9"
BACK TO CONTENTS
INSTALLATION
Tools/Parts needed for Installation (not supplied)
Small flat blade screwdriver
Phillips Screwdriver (#2 or medium sized)
Wire cutters
Wire strippers
4 - #6 round head screws, and 1 - #8 sheet metal screw
(or nut, bolt, and star washer)
2 - Ring connectors (large enough to accommodate your method of grounding)
In-line fuse or circuit breaker - see fuse chart below
Power and ground wire - see Power Wire Calculator on page 4
Speaker wire - 16 gauge or larger
Grommets (sized to work with the power wire you plan to use
in your installation)
Tube of silicone sealant
Fuse requirements
Amplifier Maximum Fuse Rating
PC4200
PC4400
PC4800
PC6600
Y ou will need to install an in-line fuse or circuit breaker in the power
wire within 18" of the battery . This fuse or cir cuit breaker is to protect
your vehicle from fire in case the power wire shorts to the vehicle
body. If you are only using one amplifier, use the fuse rating indicated
in this chart. If you are using more than one amplifier, add up the fuse
ratings for all the amplifiers. This sum is the rating for your main fuse or
circuit breaker . Use a po wer distribution block or fuse near y our amplifiers
with the appropriate fuse for each individual power wire.
3
40 Amp
60 Amp
80 Amp
80 Amp
BACK TO CONTENTS
WIRING
The following is a basic f ormula to be used as a guide to determine current
draw. A 50% amplifier efficiency rating is used as an average. Your new
POWERCLASS
be less. This formula is to be used as a guideline. Using wire of a larger
gauge can only improve the current transfer of your system. Do not use
smaller gauge wire.
Total RMS output x 2 = Total Input Wattage
™
amplifier is more efficient, other amplifiers will probably
Total Input Wattage
Supply V oltage
Example: A
POWERCLASS
= Current Draw (in Amps)
™
4400 amplifier has four channels at 50 watts
RMS per channel into 4 Ohms (50 x 4 = 200). You would use the
formula in the following way:
200W x 2 = 400W
400W
= 33.3A Total current draw.
12V
If the same amplifier is driven into a 2 Ohm stereo or 4 Ohm mono load,
double it's 4 Ohm RMS rating. All
double their power at this load.
100W x 4 x 2 = 800W
800W
= 66.6A Total current draw.
12V
If you are using more than one amplifier, add up the total current draw
for all of them and choose the appropriate gauge based on the grand total.
Power Wire Calculator
Recommended MINIMUM Gauge
POWERCLASS
™
amplifiers will effectively
Total Current Draw Length Of Wire To Be Run
( in Amps) Up to 4ft. 4 to 7ft. 7 to 10ft. 10 to 13ft. 13 to 16ft. 16 to 19ft. 19 to 22ft. 22 to 28ft.
0-20 14 12 12 10 10 8 8 8
20-35 12 10 8 8 6 6 6 4
35-50 10 8 8 6 6 4 4 4
50-65 8 8 6 4 4 4 4 2
65-85 6 6 4 4 2 2 2 0
85-105 6 6 4 2 2 2 2 0
105-125 4 4 4 2 2 0 0 0
125-150 2 2 2 2 0 0 0 00
(
NOTE: The ground wire should be the same gauge as the power wire.
4
BACK TO CONTENTS
WIRING
Before beginning, disconnect the negative (-) terminal of the
battery prior to working on the positive (+) terminal to prevent
a short to ground. This is important, unless you want to spend
the rest of your life with a nickname like
Reconnect the negative terminal only after all connections have
been made.
Factory Ground wire may
need to be replaced if it is
frayed or broken.
Run signal cables (RCAs)
and remote turn-on lead
down the opposite side of
the vehicle of the power
wire to avoid radiated noise.
eject
123
4
Trk 1
5
876
BASS
TREBLE
PPI
BALANCE
TRACK
VOLUME
RIGHT
FOWARD
REVERSE
LEFT
MARKET
INGDPT
"Sparky,"
or
"Smokey."
Positive
Battery
Terminal
Fuse must be
installed within
18" of battery
Drill a hole in the firewall
and use a rubber grommet
to keep wire from shorting.
Avoid sharp edges that
could chafe through the
insulation.
Warning!
Fuse must be installed within 18" of battery
Run the cables under the
carpet near the side of the
vehicle. Be careful not to
drill or screw into the wires
when you replace the trim.
For systems over 300 watts,
add a ground cable from the
amp to the battery
(see page 6).
Firmly attach Amp
Ground Wire to solid
metal (see page 6).
5
BACK TO CONTENTS
Grounding
Locate an area near the amplifier(s) that is metal and clean an area
about the size of a quarter to bare metal. Inspect the area around
and underneath to be sure you won't drill into wires, brake or fuel lines.
Drill a pilot hole in the middle of this area. Terminate the ground wire
with a ring connector and attach it to the bare metal using a #8 sheet
metal screw and washer or preferably, a bolt, nut and a star washer
(not supplied). We suggest crimping and soldering this connection.
After the connection is complete, coat the area (on both sides) with
silicone or some similar material to prevent rust from developing on
the bare metal.
If your grand total current draw is over 50 amps (or total output
power is over 300 watts), you should run a ground wire beside
your power wire from the battery to the amplifier(s) in addition
to your regular ground wire. Keep the ground and power wires
as close together as possible, and use the same gauge wire f or both.
This will ensure that you have a good ground path, and may eliminate
such potential problems as engine noiseand overheated amplifiers.
POWER / GROUND
Charging System Considerations
If your grand total current draw is over 100 amps (or total output
power is over 600 watts), you are probably exceeding the capability
of your charging system. Dimming lights and fluctuating voltage are
solid indicators that you need to upgrade your alternator, battery
(or go to multiple batteries), or both.
Keep in mind that your amplifiers simply convert electrical energy
to acoustical energy, and any electrical deficiency will compromise
the performance of your sound system.
For more information about charging system upgrades, see your
local authorized
technical support office at
PrecisionPower
1-800-62POWER
Dealer or call the
6
PrecisionPower
.
BACK TO CONTENTS
POWER / GROUND and REMOTE
Fastening screws
Once you have run both the power and ground wires, it's time
to connect the cables to the amplifier. Cut off excess wire and,
using wire strippers, strip the ends of the power and ground
cables approximately 1/4 inch. Locate the
and ground connector (supplied). With a small flat bladed screw
driver, loosen the screws before attempting to insert the cables.
Insert the wires into the appropriate hole, and tighten the
screws. Once the wires are secure, the
plugged into the amplifier. The Power/Ground
accommodate 6 gauge wire for the
wire for the
PC4800
and
PC6600
.
PowerLock
PowerLock
PC4200 / PC4400
may be
PowerLock
power
will
, and 4 gauge
Power/Ground
Remote turn-on
Your head unit should have a lead marked 'remote' or 'power
antenna' which will be used to turn on your amplifier. Extend
this lead through your vehicle along with your RCA signal wires.
Strip 1/4 inch of insulation off the wire and insert the end into
the center terminal of the 5-pin speaker/remote
PowerLock
Power wires
Connect to Amplifier
Po werLoc k.
7
BACK TO CONTENTS
SPEAKER WIRING
Using 16 gauge or larger, run the speaker wires from the
amplifier location through the vehicle to the speakers. Observe
the same precautions for routing these wires that you followed
for running the power and remote turn-on wires. Cut off excess
and, using wire strippers, strip 1/4 inch of insulation. Locate
the speaker/remote turn-on
four outer screws on the underside of the connector and insert
the front (
PC4200, PC4400
speaker leads into the end. Check to be sure you've maintained
proper polarity before securing each wire.
Speaker
Power
Lock
Connector
Right Speaker negative
Right Speaker positive
Remote turn on
Left Speaker positive
Left Speaker negative
PowerLock
and
PC4800
connector. Loosen the
) or sub (
PC6600
)
Speaker
Power
Lock
Connector
Right Speaker negative
Right Speaker positive
Left Speaker positive
Left Speaker negative
Speaker/Remote
For the rear channels, locate the four terminal speaker
PowerLock
a four terminal
PowerClass Amplifiers, all speaker
connector. (For PC650, the front channel also uses
PowerLock
connector.) On 4 and 6 channel
PowerLocks
plug into the
amplifier with the screws facing up. Loosen the screws on the
top of the blocks and insert the stripped ends of the speaker
wires into the end. Double check polarity, secure each wire by
tightening the screws, and plug the
PowerLock
connector into
the amplifier with the screws on top.
8
Po werLock
BACK TO CONTENTS
Bridging
BRIDGING
Any or all pairs of channels (front, rear or sub) on your
multi channel amplifier are capable of being bridged into a 4 ohm mono
output without switches or bridging modules. This feature permits
the creation of a mono channel for a subwoofer or center channel.
Deriving the mono channel is accomplished by using the left channel
positivewire of the pair as the positive speaker wire and the right
channel negative wire as the negative speaker wire. You should always
be working with the wires of a single
when bridging a pair of channels.
NOTE: It is important that a minimum 4 ohm impedance is observed.
If the impedance drops significantly below 4 ohms while the amplifier
is wired in the bridged configuration, the amplifier's protection circuitry
may engage.
PowerLock
POWERCLASS
speaker connector
Mixed Mono Output
The ability to run stereo speakers while simultaneously running
a mono output from the same channel pair is accomplished by
running the stereo speakers normally and tapping into the appropriate
wires for the "mixed mono" channel (left channel positive for the
positive speaker wire and right channel negative for the negative
speaker wire). Total speaker impedance should be no lower than
2 ohms on the stereo channels and 4 ohms on the mono channel.
™
NOTE: Passive crossovers must be used for "mixed mono"
operation. Choose a low pass crossover around 100Hz for your
subwoofer, then choose a high pass crossover for your stereo
channels. The high pass crossover must be at the same or slightly
higher frequency than the low pass crossover to maintain the
correct impedance. See your
1-800-62POWER
for more information about passive crosso vers.
PrecisionPower
9
dealer or call
BACK TO CONTENTS
ENDPLATE DIAGRAMS
POWER / GROUND /
Q
BASS
™
PC4200
PC4400
PC4800
QBASS
QBASS
+
18
0
REMOTE
5
6
POWER
Designed and Handcrafted in the U.S.A.
+
-
241
POWER / MUTE
Designed and Handcrafted in the U.S.A.
+
-
231
Designed and Handcrafted in the U.S.A.
7
2
POWER / MUTE
+
-
1
3
PC6600
QBASS
+
18
0
5
1. POWER / GROUND
After you have securely connected your power and ground wires, plug in the
Power / Ground
2. COOLING VENTS (see page 18).
3. POWER / MUTE indicator
A green light indicates that the amplifier is on, a red light indicates that the amplifiers
muting circuits are engaged.
4. POWER indicator
A green light indicates that the ampilfier is on.
5. QBASS™ Level
Turn this control clockwise to boost the
6. QBASS REMOTE™ plug in
Plug in the data cable from the optional
(This will bypass the amplifier's on board
7. FORCED AIR INTAKE VENTS (see page 18 and 19).
PowerLock
PowerLock
Designed and Handcrafted in the U.S.A.
QBASS
REMOTE
6
connector here.
Q
BASS PLUS
Q
BASS REMO TE
Q
BASS
10
POWER / MUTE
+
-
1
23
™
circuit by up to 18dB.
™
™
control)
dash mount level control here.
BACK TO CONTENTS
ENDPLATE DIAGRAM
4200 / 4400
1. REAR HP/LP switch
This switch is used to select whether the amplifier will provide a high
pass (switch in) or low pass (switch out) signal to the rear speakers. (see page 16).
2. REAR GAIN
Use this control to match the output level of the head unit to the rear channel of
the amplifier (see page 18).
3. QBASS™ Control
Rotate clockwise to boost up to 12dB at 40Hz (see page 15).
4. FRONT GAIN
Use this control to match the output level of the head unit to the front channel of
the amplifier (see page 18).
5. COOLING VENTS (see page 18).
6. SPEAKER/REMOTE CONNECTOR
After connecting remote and speaker wires, plug in the
connectors here (see pages 7-9).
1
REAR XOVER FREQ.
2
REAR
REAR
GAIN
HP/LP
REAR INPUTS
L R
3
QBASS
-12dB
FRONT HP FREQ.
FRONT
GAIN
PowerLock
456
FRONT
L - L + R E M R + R -
COMBINE
REAR
L - L + R + R -
FRONT INPUTS L / R
OUTPUTS L / R
7
7. REAR XOVER FREQ.
Use this control to adjust the rear crossover frequency from 20Hz to 5kHz (see page 16).
8. REAR INPUTS
Plug in the rear RCA leads from your head unit here (see page 14).
9. -12dB
For use with high level inputs (4V up to 12V). Push this switch
in to attenuate the input by 12dB (see page 14).
10. COMBINE
Push this switch in to connect the rear channels to the front inputs (see page 18).
11. FRONT XOVER FREQ.
Use this control to adjust the front crossover frequency from 20Hz to 5kHz (see page 16).
12. FRONT INPUTS
Plug in the front RCA leads from your head unit here (see page 14).
13. L/R OUTPUTS
Left and Right RCA outputs provide summed mono low pass signal to another amplifier .
8
10 11
9
12 13
11
BACK TO CONTENTS
ENDPLATE DIAGRAM
1. REAR LP FREQ.
2. REAR GAIN
3. FRONT GAIN
4. QBASS 1
5. QBASS 2
6. Q SELECT 4/2
7. FORCED AIR EXHAUST VENTS (see page 18 and 19).
8. SPEAKER/REMOTE CONNECTOR
Use this control to adjust the rear low pass crossover frequency from 44Hz to 315Hz
(see page 16).
Use this control to match the output level of the head unit to the rear channel of
the amplifier (see page 18).
Use this control to match the output level of the head unit to the front channel of
the amplifier (see page 18).
Use this switch with the QBASS 2 to program the
Use this switch with the QBASS 1 to program the
Push this button in for a Q setting of 4 and out for a setting of 2.
After connecting remote and speaker wires, plug in the
connectors here (see pages 7-9).
4
1
REAR LP FREQ.
REAR HP/LP
REAR HP FREQ.
2
3
REAR
FRONT
GAIN
GAIN
REAR INPUTS
L R
QBASS
1 2
56
Q SELECT
-12dB
FRONT HP FREQ.
4/2
L - L + R + R -
COMBINE
REAR
4800
Q
BASS PLUS
Q
BASS PLUS
PowerLock
78
FRONT
L - L + R E M R + R -
™
circuit. (see page 15).
™
circuit. (see page 15).
FRONT INPUT L / R
OUTPUT L / R
10
9
11
12
13 14
9. REAR HP/LP switch
This switch is used to select whether the amplifier will provide a high
pass (switch IN) or mono low pass (switch OUT) signal to the rear speakers. (see page 16).
10. REAR HP FREQ.
Use this to adjust the rear high pass crossover frequency from 20Hz to 5kHz (see page 16).
11. REAR INPUTS
Plug in the rear RCA leads from your head unit here (see page 14).
12. -12dB
For use with high level inputs (4V up to 12V). Push this switch
in to attenuate the input by 12dB (see page 14).
13. COMBINE
Push this switch in to connect the rear channels to the front inputs (see page 18).
14. FRONT HP FREQ.
Use this to adjust the rear high pass crossover frequency from 20Hz to 5kHz (see page 16).
15. FRONT INPUTS
Plug in the front RCA leads from your head unit here (see page 14).
16. OUTPUTS
Left and Right RCA outputs provide high pass or mono low pass signal to another amplifier.
17. FORCED AIR INTAKE VENTS (see page 18 and 19).
12
15
16
17
BACK TO CONTENTS
ENDPLATE DIAGRAM
6600
1. FRONT GAIN
Use this control to match the output level of the head unit to the front channel of
the amplifier (see page 18).
2. REAR GAIN
Use this control to match the output level of the head unit to the rear channel of
the amplifier (see page 18).
3. SUB GAIN
Use this control to match the output level of the head unit to the sub channel of
the amplifier (see page 18).
4. COOLING VENTS (see page 18).
5. SPEAKER/REMOTE CONNECTOR
After connecting remote and speaker wires, plug in the
connectors here with the screws facing up (see pages 7-9).
1
COMBINE
6
2
SUB
REAR
FRONT
GAIN
Q SELECT 4/2
GAIN
GAIN
2
1
QBASS
9101112
8
7
PowerLock
345
FRONT
L - L + R + R -
XOVER FREQ.
FRONT
REAR
-12dB
REAR
L - L + R + R -
L - L + R E M R + R -
13
SUB WOOFER
14
FRONT INPUTS
L / R
REAR INPUTS
L / R
6. COMBINE
Push this switch in to connect the rear channels to the front inputs (see page 18).
7. Q SELECT 4/2
Push this button in for a Q setting of 4 and out for a setting of 2 (see page 15).
8. QBASS 1
Use this switch with the QBASS 2 to progr am the
9. QBASS 2
Use this switch with the QBASS 1 to progr am the
10. FRONT XOVER FREQ.
Use this control to adjust the front crossover frequency from 20Hz to 5kHz (see page 16).
11. REAR XOVER FREQ.
Use this control to adjust the rear crossover frequency from 20Hz to 5kHz (see page 16).
12. -12dB
For use with high level inputs (4V up to 12V). Push this switch
in to attenuate the input by 12dB (see page 14).
13. FRONT INPUTS
Plug in the front RCA leads from your head unit here (see page 14).
14. REAR INPUTS
Plug in the rear RCA leads from your head unit here (see page 14).
13
Q
BASS PLUS
Q
BASS PLUS
™
circuit. (see page 15).
™
circuit. (see page 15).
BACK TO CONTENTS
INPUTS
t
There are two sets of RCA INPUTS on the front end of your amplifier.
Plug the RCA cables from your head unit into the appropriate set of
inputs, front and rear. If your head unit doesn't have RCA outputs
don't worry. Simply add a set of RCA plugs (available at your dealer)
to your front or rear set of speaker leads (see drawing below), plug
them into the input jacks, and push in the -12dB switch.
SOURCE Headunit
eject
VOLUME
WARNING:
123
4
Trk 1
5
BASS
BALANCE
LEFT
876
TREBLE
RIGHT
MAR KET
PPI
TRACK
FOWARD
ING DPT
REVERSE
(+) Positive
LEFT input
(-) Negative
(+) Positive
RIGHT inpu
(-) Negative
If you are using a source unit with bridged high powered (or
"floating ground") speaker outputs, a suitable high to low level adapter
must be used. If you are unsure about your head unit see your local
PrecisionPower dealer or call 1-800-62Power.
Balanced Differential Inputs
This circuitry reduces noise radiated into your signal cables by up to
40dB. This is equivalent to a noise reduction of approximately one
hundred times what the noise lev el w ould be without this circuitry.
It provides all the benefits of a true 'balanced' line without the need
of any special cables (see diagram below). This type of input works
with any conventional RCA cab le.
music
signal and ground
music
noise
noise
noise
(+)
( + =)
( )
music noise
(+)
( - = 0 )
( )
noise cancels
14
music
and noise
music
NO noise
BACK TO CONTENTS
Q
BASS
™
and
Q
BASS REMOTE
™
Q
BASS
™
For extra BOOM from your system, we've developed the
QBASS
bass control circuit. The
QBASS
control is located
™
to the left of the speaker outputs, and allows you to add up to
12dB of boost centered at 40Hz by rotating the control clockwise.
QBASS
™
QBASS
Is a standard feature on the
QBASS PLUS
On
PC4800
to a higher level with
™
and
PC6600
QBASS PLUS
amplifiers, we've taken bass control
PC4200/PC4400
™
. The two
QBASS
(labeled 1 and 2) on the front end of the amplifier allow you
to select one of four frequency centers - 30Hz, 36Hz, 44Hz
and 60Hz. The Q SELECT switch determines the width of
boosted frequencies. A 'Q' of 2 (switch out) will give you a
wide boost while a 'Q' of 4 will boost a narrow range of
frequencies. (See chart below.) On the rear end panel you
will find the
QBASS PLUS
for an optional
QBASS REMOTE
™
level control and the plug-in
™
level control. Adjust the
level control clockwise for up to 18dB of boost at your
selected frequency and Q.
QBASS PLUS™
1 2 Freq.
IN IN 30Hz
IN OUT 36Hz
OUT IN 44Hz
OUT OUT 60Hz
CAUTION:
Settings
QBASS
™
+18dB
and
+12dB
+6dB
Q = 4
0dB
QBASS PLU
30Hz
™
S
should only be used in
systems with strong subwoofers. 18dB is a lot of bass boost and
could damage full range speakers.
Q = 2
36Hz
™
.
switches
QBASS PLUS
44Hz
60Hz
™
15
BACK TO CONTENTS
CROSSOVER Operation
Your new
exceptional system flexibility without the added expense and installation of an
outboard crossover. See the frequency detent charts on page 17 to set your
amplifier's crossover.
POWERCLASS
™
amplifier has crossover circuits built-in to provide
PC4200 / PC4400
The front crossover is high pass and can be adjusted from 20Hz to 5kHz by
turning the FRONT HP FREQ. control. If you need full-r ange, turn the control
fully counterclockwise to the 20Hz position. The rear crossov er can be high
pass or low pass, chosen by the REAR HP/LP switch. The REAR XOVER
FREQ. control determines the rear crossov er frequency between 20Hz and
5kHz, 20Hz being fully counterclockwise. The RCA outputs are always mono
low pass at 90Hz to send a subwoofer signal to another amplifier.
PC4800
The front crossover is high pass and can be adjusted from 20Hz to 5kHz by
turning the FRONT HP FREQ. control. If you need full-r ange, turn the control
fully counterclockwise to the 20Hz position. The rear crossover actually
consists of two crossovers, one high pass and one mono low pass. The
high pass section is a 12dB/octave Linkwitz-Riley type that is adjustable
from 20Hz to 5kHz using the REAR HP FREQ. control. For full range
operation, turn the control fully counterclockwise to the 20Hz position. The
low pass section is a 24dB/octave Linkwitz-Riley type that you can adjust
from 44Hz to 315Hz with the REAR LP FREQ. control. High pass or low
pass to the rear channel is determined by the REAR HP/LP switch, 'OUT'
being low pass and 'IN' being high pass. When you select high pass, the
RCA outputs will be low pass and vice versa.
PC6600
The front and rear crossovers are both high pass, and can be adjusted from
20Hz to 5kHz using the XOVER FREQ. FRONT and REAR controls . F or full
range operation, turn the control fully counterclockwise to the 20Hz position.
The subwoofer crossov er is a 24dB/octave Linkwitz-Rile y type fixed at 90Hz.
See system diagrams starting on page 21 for examples!
16
BACK TO CONTENTS
FREQUENCY DETENT CHARTS
PC4200 / PC4400 / PC4800 / PC6600
The crossover frequency range of y our new
POWERCLASS
™
amplifier goes from
20Hz - 5kHz, and the controls are detented for accurate tuning. Each "click" counted
from the full counterclockwise position corresponds to a specific frequency . Ref er to
this chart for set-up instructions.
PC4200/PC4400 - Front HP & Rear Xover Freq.
DETENT
PC4800 - Front and Rear HP Freq.
PC6600 - Front and Rear Xover Freq.
1 20 Hz
2 21 Hz
3 21 Hz
4 21.5 Hz
5 22 Hz
6 23 Hz
7 24.5 Hz
8 26 Hz
9 27.5 Hz
10 30 Hz
11 32 Hz
12 35 Hz
13 39 Hz
14 43 Hz
15 49 Hz
16 56 Hz
17 64 Hz
18 73 Hz
19 80 Hz
20 88 Hz
21 100 Hz
22 114 Hz
23 134 Hz
24 160 Hz
25 196 Hz
26 260 Hz
27 320 Hz
28 368 Hz
29 432 Hz
30 496 Hz
31 608 Hz
32 752 Hz
33 864 Hz
34 1008 Hz
35 1200 Hz
36 1488 Hz
37 1952 Hz
38 2816 Hz
39 4512 Hz
40 4944 Hz
41 5000 Hz
DETENT
1 44 Hz
2 44 Hz
3 44 Hz
4 45 Hz
5 46 Hz
6 48 Hz
7 51 Hz
8 54 Hz
9 58 Hz
10 62 Hz
11 67 Hz
12 72 Hz
13 78 Hz
14 85 Hz
15 94 Hz
16 104 Hz
17 115 Hz
18 124 Hz
19 132 Hz
20 141 Hz
21 150 Hz
22 162 Hz
23 175 Hz
24 189 Hz
25 207 Hz
26 227 Hz
27 240 Hz
28 249 Hz
29 258 Hz
30 268 Hz
31 280 Hz
32 287 Hz
33 290 Hz
34 295 Hz
35 298 Hz
36 303 Hz
37 307 Hz
38 311 Hz
39 315 Hz
40 315 Hz
41 315 Hz
17
BACK TO CONTENTS
Input Combine
INPUT COMBINE and GAIN
Your multi channel
and rear outputs from your head unit to maintain the ability to fade
front to rear, or you can run a single set of RCAs to the front inputs
and push in the COMBINE switch on the amplifier end plate to route
the front signal to the rear channels as well.
POWERCLASS™
amplifier can use both front
Adjusting The Amplifier Input Gain
1. Adjust all amplifier input gain controls to just above minimum
sensitivity (fully counterclockwise).
2. Using the cleanest source (CD), with music playing turn up
the head unit until you can hear distortion. Now turn it down a
bit until you cannot hear the distortion.
3. Increase the Amplifier gain (clockwise) until the onset of
audible distortion. Then decrease the gain to the point just
before the distortion starts. This setting minimizes background
noise and prevents overload.
4. Repeat step 3 for any remaining amplifiers in the system.
Heatsink Cooling
The unique heatsink on your
been designed with fins on the inside of the aluminum mass.
This allows for the transfer of heat from the circuitry to the
heatsink fins and out through the vents in the endplates. Be
sure you have ample space around the amplifier for cooling,
at least 2" on all sides.
POWERCLASS™
18
amplifier has
BACK TO CONTENTS
FORCED AIR THERMAL MANAGEMENT
To manage the additional heat associated with higher output capability,
a thermally controlled fan has been designed into the
When the heatsink temperature reaches a predetermined
value, the fan is activated. Cool air is drawn in through
the lower intake vents on the endplate. This cool air
flows below the circuit board, through the fan and
across the internal fins, cooling the heatsink.
The heated air is then forced out through
the upper endplate exhaust vents .
PC4800
.
Warm Air Exhaust
Cool Air Intake
19
BACK TO CONTENTS
TROUBLE SHOOTING
NO SOUND Is the LED lit?
YES NO
WHAT COLOR ?
RED
Central Muting is engaged. Remote
turn-on wire must have more than 8
volts to release central muting. Check
Remote turn-on at the head unit. You
may need to install a relay if the head
unit doesn't put out sufficient voltage.
Check Power and Remote turn-on wire
for voltage. Make sure Ground wire is
secure.
GREEN
Substitute RCA inputs with another
source, and connect a known good
speaker to one channel.
STILL NO SOUND - See your Authorized
1-800-62
Power
PrecisionPower
Dealer or Call
SOUND IN ONE CHANNEL ONLY
Reverse left and right speakers by unplugging the speaker connector, turning it
over and plugging it back in.
SOUND IS NOW IN
OPPOSITE CHANNEL
Reverse RCA inputs
SOUND IS NOW IN
OPPOSITE CHANNEL
Reverse RCAs at head unit
SOUND IS NOW IN
OPPOSITE CHANNEL
Problem is in the head unit
AMPLIFIER SHUTS OFF
Short Circuit Protection engaged:
The amplifier will turn off and try to come back on immediately. The
amplifier will cycle like this indefinitely, with "blips" of sound each
time. If this is the case, check your speakers and wiring for low
impedance and short circuits.
Problem is in the speaker or speaker
wire of the silent channel.
Problem is in the Amplifier. See your
local Authorized
or call 1-800-62
Problem is in the RCA cables
SAME CHANNEL
SAME CHANNEL
PrecisionPower
POWER
SAME CHANNEL
.
Dealer
Thermal Protection engaged:
The amplifier will turn off and several minutes later will come back
on. In this case, ensure that there is nothing blocking the normal
convective airflow of the amplifier. No obstruction should be within
2" of the amplifier on all sides.
20
BACK TO CONTENTS
SYSTEM DIAGRAM
ONE / TWO
Tweeter
MidRange
Sub
Tweeter
MidRange
Passive
Crossover
Passive
Crossover
VOLUME
PEQ-114
Volume
Power
PEQ-114
Sub
PEQ-114
Preamp/Equalizer
POWER
PC4200, PC4400
Front High Pass 100Hz
Rear Low Pass 100Hz
VOLUME
Precision
PAR-245
Volume
Power
F
In-Clip
R
Fader
Defeat
PAR-245
Preamp/Equalizer
Source Unit
eject
123
5
BASS
TREBLE
BALANCE
TRACK
RIGHT
FOWARD
LEFT
Input
Sensitivity
R
Input
Precision
Power
+
+
+
Low
Mid
Treble
CLASS™
Source Unit
eject
123
5
BASS
TREBLE
BALANCE
TRACK
RIGHT
FOWARD
LEFT
R
Input
In
p
u
t S
e
n
s
itiv
ity
1
2
3
4
Sub
Power
Low
Low-M
M
Sub Low Low-Mid
++++
High-Mid Treble
4
876
PPI
REVERSE
L
R
Output
Made in USA
+
Amplifier
or
4
876
PPI
REVERSE
L
R
Output
Frequency Adjust
id
High-M
id
Treble
ade in USA
+
PAR-245
Trk 1
MARKET
INGDPT
L
PC4800
Trk 1
MARKET
INGDPT
Rear
L
R
Front
Output
Passive
Crossover
Tweeter
MidRange
Power
Sub
Passive
Crossover
Tweeter
MidRange
L
LED Select
Power
Tweeter
MidRange
Passive
Crossover
POWER
CLASS™
PC4200, PC4400
Front High Pass 20Hz
Rear High Pass 20Hz
Mixed Mono Sub
Passive
Crossover
Sub
21
Amplifier
or
PC4800
Passive
Crossover
Tweeter
MidRange
BACK TO CONTENTS
Tweeter
SYSTEM DIAGRAM
THREE
Source Unit
eject
123
5
BASS
TREBLE
BALANCE
TRACK
VOLUME
RIGHT
FOWARD
LEFT
R
Input
Input Sensitivity
1
2
3
4
Precision
PAR-245
Sub
Volume
Power
Low
Passive
Crossover
Power
In-Clip
PAR-245
Preamp/Equalizer
Low
F
R
Fader
M
ade in U
Defeat
Sub Low Low-Mid
++++
High-Mid
Treble
4
Trk 1
876
MARKET
PPI
INGDPT
REVERSE
L
R
Rear
Output
L
R
Front
Output
L
LED Select
Power
Frequency Adjust
-M
id
H
igh-M
id
Treble
SA
+
PAR-245
Passive
Crossover
Tweeter
MidRange
Tweeter
MidRange
Sub
Passive
Crossover
POWER
PC4200, PC4400
CLASS™
or
Front High Pass 88Hz
Rear High Pass 88Hz
Low Pass RCA Outputs
(for constant sub)
POWER
CLASS™
One or Two Channel Amplifier
Front
Amplifier
PC4800
Amplifier
Rear
Passive
Crossover
MidRange
Tweeter
MidRange
Sub
22
BACK TO CONTENTS
Tweeter
MidRange
Passive
Crossover
SYSTEM DIAGRAM
FOUR
Source Unit
eject
123
4
Trk 1
5
876
BASS
TREBLE
MARKET
PPI
ING DPT
BALANCE
TRACK
VOLUME
RIGHT
FOWARD
REVERSE
LEFT
R
Input
L
R
Input Sensitivity
Rear
Output
L
R
Front
O
utput
L
LED
Select
Precision
PAR-245
Volume
Power
F
In-Clip
R
Fader
Defeat
PAR-245
Preamp/Equalizer
Power
Sub Low Low-Mid
3
4
Sub Low Low-Mid
High-Mid Treble
1
2
Made in USA
++++
+
PAR-245
Pow
er
Frequency Adjust
High-Mid
Treble
Passive
Crossover
Tweeter
MidRange
Tweeter
MidRange
Sub
Passive
Crossover
POWER
CLASS™
Amplifier
PC4800
Front High Pass 320Hz
Rear High Pass 320Hz
RCA Output Low Pass 315Hz
POWER
Front High Pass 100Hz
Rear Low Pass 100Hz
CLASS™
PC4800
Amplifier
Passive
Crossover
Tweeter
MidRange
MidBassMidBass
Sub
23
BACK TO CONTENTS
SYSTEM DIAGRAM
FIVE
Source Unit
eject
123
4
Trk 1
5
876
BASS
TREBLE
MARKET
PPI
INGDPT
BALANCE
TRACK
VOLUME
RIGHT
FOWARD
REVERSE
LEFT
R
Input
L
R
In
Rear
p
u
t S
Output
e
n
s
L
itiv
ity
1
Frequency Adjust
2
3
4
Precision
PAR-245
Sub
Volume
Power
Low
DEQ-230
Power
In-Clip
PAR-245
Preamp/Equalizer
Input
stereo • out
mono • in
L
R
third octave EQ
Low-M
F
id
High-M
R
id
Fader
Precision
Output
L
R
Treble
M
ade in USA
Defeat
Sub Low Low-Mid
++++
+
High-Mid Treble
PAR-245
6.4 KHz
Third Octave Equalizer
3.2 KHz
1
+
1.6 KHz
b
d
2
-1
b
d
2
1
+
800 Hz
b
d
2
-1
2 KHz
b
d
2
1
+
400 Hz
b
d
2
-1
1 KHz
b
d
2
1
+
200 Hz
+12db-12db
b
d
2
-1
b
d
500 Hz
2
1
+
100 Hz
b
d
+12db-12db
1.27 KHz
2
-1
b
d
2
1
250 Hz
+
50 Hz
b
d
2
635 Hz
+12db-12db
-1
b
d
2
1
+
126 Hz
25 Hz
b
d
2
-1
Power
+12db-12db
320 Hz
b
d
2
1
+
63 Hz
+12db
b
d
2
-1
DEQ-230
+12db-12db
-12db
156 Hz
Power
31.5 Hz
+12db-12db
+12db-12db
80 Hz
+12db-12db
40 Hz
+12db-12db
EQ
Defeat
Ground
Remote
Power
R
Front
Output
L
LED Select
Power
USA
Made in
12.8 KHz
b
d
2
1
+
b
d
2
-1
16 KHz
b
d
2
1
+
+12db-12db
b
d
2
-1
8 KHz
b
d
20 KHz
2
+12db-12db
+12db-12db
4 KHz
10 KHz
+12db-12db
+12db-12db
5 KHz
+12db-12db
+12db
-12db
2.5 KHz
+12db-12db
+12db-12db
+12db-12db
Tweeter
MidRange
Tweeter
MidRange
Sub
Passive
Crossover
Passive
Crossover
POWER
CLASS™
PC6600
Front High Pass 88Hz
Rear High Pass 88Hz
24
Amplifier
Passive
Crossover
Passive
Crossover
Tweeter
MidRange
Tweeter
MidRange
Sub
BACK TO CONTENTS
PMQ-210
Ten Band Parametric EQ
SYSTEM DIAGRAM
SIX
Source Unit
eject
123
4
Trk 1
5
876
BASS
TREBLE
MARKET
PPI
INGDPT
BALANCE
TRACK
VOLUME
RIGHT
FOWARD
REVERSE
LEFT
R
Input
L
R
Input Sensitivity
Rear
Output
L
R
Front
Output
L
L
E
D
S
elec
t
Precision
PAR-245
Volume
Power
F
In-Clip
R
Fader
Defeat
PAR-245
Preamp/Equalizer
er
Pow
Precision
PMQ-210
Input
attenuation
Output
-12dB in
stereo•out
mono•in
L
R
R
Ground
Remote
Power
L
20Hz-70Hz
Power
Sub Low Low-Mid
Power
1
2
3
4
Sub
Low
Low-Mid
Made in USA
++++
High-Mid Treble
160Hz-550Hz
80Hz-260Hz
HL
40Hz-130Hz
Q
HL
Q
HL
41.5
Q
41.5
Cut / Boost
EQ
Defeat
Power
Precision
P
ow
er
Frequency Adjust
High-Mid
Treble
+
PAR-245
14KHz-23.37KHz
HL
Q
9.37KHz-15.75KHz
HL
41.5
4KHz-9.37KHz
Q
HL
Cut / Boost
41.5
1.95KHz-4.5Khz
940Hz-1.25KHz
HL
330Hz-1KHz
HL
Q
HL
Q
41.5
41.5
Cut / Boost
Cut / Boost
+12db-12db
Cut / Boost
+12db-12db
+12db-12db
+12db-12db
Q
USA
HL
Cut / Boost
41.5
Made in
+12db-12db
Q
Cut / Boost
41.5
+12db-12db
Q
10 Band Parametric Equalizer
Cut / Boost
41.5
+12db-12db
41.5
Cut / Boost
+12db-12db
Cut / Boost
+12db-12db
+12db-12db
Tweeter
MidRange
Tweeter
MidRange
Sub
POWER
Passive
Crossover
Passive
Crossover
CLASS™
PC6600
Left Channel
Amplifier
POWER
CLASS™
PC6600
2 Front High Pass 88Hz
Rear High Pass 88Hz
All Channels Bridged
25
Amplifiers
POWER
CLASS™
PC6600
Right Channel
Passive
Crossover
Passive
Crossover
Amplifier
Tweeter
MidRange
Tweeter
MidRange
Sub
BACK TO CONTENTS
BLOCK DIAGRAM
High Pass
Low Pass
AMP
RCA
Rear Right
Input
DIF.
SUM
RCA
Rear Left
Input
INPUT ATTENUATION
AMP
RCA
Front Right
Input
RCA
Front Left
Input
High Pass
20Hz - 5kHz
DIF.
Input
Combine
Switch
Low Pass
90Hz
mute
mute
Front
gain
Rear
gain
Front
Rear
mute
12dB / octave
12dB / octave
24dB / octave
Front Crossover
Rear Crossover
RCA Outputs
Rear
HP/LP
Switch
Q
BASS
™
20Hz - 5kHz
4200/4400
26
BACK TO CONTENTS
BLOCK DIAGRAM
RCA
Rear Right
Input
DIF.
SUM
RCA
Rear Left
Input
INPUT ATTENUATION
RCA
Front Right
Input
RCA
Front Left
Input
High Pass
20Hz - 5kHz
DIF.
Input
Combine
Switch
Low Pass
44Hz - 315Hz
mute
mute
mute
High Pass
20Hz - 5kHz
Rear
HP/LP
Switch
Front Crossover
12dB / octave
Front
gain
Front
RCA Outputs
Rear Crossover
12dB / octave
Rear Crossover
24dB / octave
AMP
Rear
gain
Rear
Q
BASS
PLUS
™
Q
BASS REMOTE
™
AMP
4800
27
BACK TO CONTENTS
BLOCK DIAGRAM
RCA
Rear Right
Input
DIF.
SUM
RCA
Rear Left
Input
INPUT ATTENUATION
RCA
Front Right
Input
RCA
Front Left
Input
High Pass
20Hz - 5kHz
DIF.
Input
Combine
Switch
Low Pass
90Hz
mute
mute
High Pass
20Hz - 5kHz
mute
Front Crossover
12dB / octave
AMP
Front
gain
Front
Rear Crossover
12dB / octave
24dB / octave
AMP
Rear
gain
Rear
AMP
Sub
gain
Sub
Q
BASS
REMOTE
™
Q
BASS
PLUS
™
6600
28
BACK TO CONTENTS
WARRANTY
Three-Year Limited U.S.A. Warranty
This warranty gives you specific legal rights, and you may also have other rights which vary from
state to state.
workmanship under normal use and service for a period of three (3) years from the date of
original purchase when the unit is installed by an Authorized Dealer. Non-Authorized Dealer
installed products carry a one (1) year parts and ninety (90) days labor limited warranty. The
extent and conditions of Limited Warranty are as follows:
1. A uthorized Dealer Installed Products:
to the original purchaser, any unit which
and under warranty, provided the defect occurs within three (3) years from the date of original
purchase when the unit is installed by an Authorized Dealer and the product is returned immediately to
2. Non-Authorized Dealer Installed Products:
charge, to the original purchaser, any unit which
defective and under warranty, provided the defect occurs within ninety (90) days from the date of
purchase and the product is returned immediately to
ninety (90) days for Non-Authorized Dealer Installed Products will be for parts only and will
extend for one (1) year from the date of purchase. This warranty is not transferable.
3. The date of purchase and proof of Authorized Dealer Installation of a PrecisionP ower product
must be established by an original sales receipt which must accompany the article being returned for warranty work.
4. This warranty shall NOT apply to any
tory serial number removed or defaced. All products received (by
ranty or out of warranty repair , with their original serial numbers removed or def aced, will NO T be
repaired and will be returned to sender, freight collect. Refer to original packaging for the serial
number of your component speakers.
5. The provisions of this warranty shall not apply to any
purpose for which it is not designed, which has been repaired or altered in any way, or which has
been connected, installed, or adjusted other than in accordance with the instructions furnished in
PrecisionPower’ s
subject to misuse, neglect, or accident.
6. PrecisionPower does not authorize any other persons to assume any other liability in connection with its products. THIS WARRANTY IS THE ONLY EXPRESS WARRANTY MADE BY
PRECISIONPOWER APPLICABLE TO ITS PRODUCTS. ANY IMPLIED WARRANTY OR MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE APPLICABLE TO
PRECISIONPOWER PRODUCTS IS LIMITED IN DURATION TO THE DURATION OF THIS
LIMITED WARRANTY. PRECISIONPOWER SHALL NOT BE LIABLE FOR THE INCIDENTAL,
CONSEQUENTIAL, OR COMMERCIAL DAMAGES RESULTING FROM THE BREA CH OF THIS
WRITTEN WARRANTY. Some states or provinces do not allow the exclusion or limitation of
incidental or consequential damages or limitations on how long an implied warranty lasts; so the
above limitations or exclusions may not apply to you.
7. Y our product will be serviced on an in-warranty basis within the warr anty period for the correction of warranted defects. If improper operation of your
contact your Authorized Dealer for assistance with the return and factory repair of your
PrecisionPower
product. If an Authorized Dealer is not available, return the unit including your name, telephone
number, return address, a copy of your sales receipt, and a description of the problem to:
TO RETURN PRECISIONPOWER PR ODUCTS OUT OF WARRANTY: Return the unit, postage
prepaid, in the original protective carton. Please include a description of the problem and, if
desired, a request for an estimate of repair costs. Unless a request for an estimate is included,
the unit will be repaired as necessary. Please contact
800-62-POWER for questions concerning out of warranty repair charges. Repaired unit will be
returned with an itemized statement, C.O.D.
PrecisionPower
PrecisionPower
owner’s manual. Nor shall this warranty apply to any part which has been
warrants its products to be free from defects in materials and
PrecisionPower
PrecisionPower’ s
. This warranty is not transferable.
PrecisionPower
PrecisionPower
PrecisionPower,Inc.
Service Department
4829 S. 38th Street
Phoenix, AZ 85040-2964
will either repair or replace at no charge,
examination discloses to be defective
PrecisionPower’s
will either repair or replace at no
examination discloses to be
PrecisionPower
product found to have the original fac-
PrecisionPower
PrecisionPower
PrecisionPower
. Warranty claims beyond
PrecisionPower
product used for a
product should occur,
Customer Service at 1-
) for in war-
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