© 2003 Directed Electronics, Inc. All rights reserved. G41810 3-03
• Linkwitz-Riley 24 dB/octave Subwoofer Filter
• Linkwitz-Riley 12dB/octave Mid Bass, Mid Range and High
• 2,3, or 4-way active crossover
• Input Combine Switch
• Input Attenuation
• Detented Frequency Selection Controls
• Rear Fill Level Control
• Sub Woofer Level Control
• Gold RCA input and output connectors
• PWM Power Supply
• Completely Designed and Engineered in the USA
• Signal-to-Noise Ratio >102dB
• Total Harmonic Distortion (1KHz, 1VRMS) 0.002%
• Crossover Slopes:
All Except Sub Low Pass 12 dB/octave
Sub Low Pass 24 dB/octave
• Crossover Frequencies:
Front: High Pass 80 Hz-7.5 KHz to 20 KHz
Mid Range 80 Hz-1.7 KHz to high pass
Mid Bass 55 Hz-500 Hz to midrange
Rear: High Pass 80 Hz-7.5 KHz to 20 KHz
Mid Range 80 Hz-1.7 KHz to high pass
Sub: Low Pass 20 Hz-270 Hz
Sub Sonic 7 Hz-46 Hz
• Input Impedance: 10 K
• Maximum Output (10 K Load) 8 VRMS
• Supply Voltage 11-15 VDC
• Dimensions (H x W x L) 1.75" x 5.125" x 10.50"
12 1
eject
All crossover frequency controls are detented. Each "click" counted from the full
counterclockwise position corresponds to a specific frequency. Refer to this chart and page
6 for set-up instructions.
DETENT SUB SONIC SUB MID BASS MID RANGE HIGH PASS
1 7 Hz 20 Hz 55 Hz 80 Hz 80 Hz
2 7 Hz 22 Hz 56 Hz 80 Hz 88 Hz
3 7 Hz 22 Hz 56 Hz 80 Hz 88 Hz
4 7 Hz 22 Hz 56 Hz 80 Hz 88 Hz
5 8 Hz 24 Hz 56 Hz 80 Hz 88 Hz
6 8 Hz 24 Hz 60 Hz 88 Hz 96 Hz
7 8 Hz 26 Hz 64 Hz 88 Hz 100 Hz
8 8 Hz 28 Hz 68 Hz 88 Hz 108 Hz
9 9 Hz 30 Hz 72 Hz 96 Hz 116 Hz
10 9 Hz 32 Hz 80 Hz 96 Hz 128 Hz
11 10 Hz 34 Hz 84 Hz 104 Hz 140 Hz
12 10 Hz 36 Hz 92 Hz 112 Hz 152 Hz
13 10 Hz 40 Hz 100 Hz 120 Hz 172 Hz
14 11 Hz 44 Hz 112 Hz 128 Hz 200 Hz
15 12 Hz 48 Hz 124 Hz 136 Hz 216 Hz
16 13 Hz 54 Hz 140 Hz 152 Hz 248 Hz
17 14 Hz 60 Hz 152 Hz 168 Hz 280 Hz
18 15 Hz 64 Hz 160 Hz 176 Hz 304 Hz
19 16 Hz 66 Hz 168 Hz 184 Hz 324 Hz
20 16 Hz 70 Hz 172 Hz 192 Hz 344 Hz
21 17 Hz 74 Hz 180 Hz 200 Hz 368 Hz
22 18 Hz 78 Hz 192 Hz 216 Hz 392 Hz
23 19 Hz 82 Hz 200 Hz 232 Hz 424 Hz
24 19 Hz 88 Hz 212 Hz 240 Hz 452 Hz
25 21 Hz 94 Hz 224 Hz 264 Hz 492 Hz
26 22 Hz 100 Hz 236 Hz 280 Hz 536 Hz
27 23 Hz 108 Hz 252 Hz 312 Hz 656 Hz
28 25 Hz 118 Hz 272 Hz 344 Hz 752 Hz
29 26 Hz 128 Hz 292 Hz 384 Hz 880 Hz
30 29 Hz 142 Hz 312 Hz 448 Hz 1.02 KHz
21 32 Hz 162 Hz 344 Hz 512 Hz 1.26 KHz
32 35 Hz 180 Hz 372 Hz 616 Hz 1.56 KHz
33 38 Hz 198 Hz 400 Hz 752 Hz 2.11 KHz
34 40 Hz 212 Hz 424 Hz 888 Hz 2.65 KHz
35 41 Hz 226 Hz 440 Hz 1.00 KHz 3.12 KHz
36 43 Hz 238 Hz 456 Hz 1.17 KHz 3.77 KHz
37 44 Hz 248 Hz 472 Hz 1.37 KHz 4.90 KHz
38 45 Hz 256 Hz 480 Hz 1.53 KHz 5.88 KHz
39 46 Hz 264 Hz 492 Hz 1.69 KHz 6.70 KHz
40 46 Hz 264 Hz 492 Hz 1.77 KHz 7.40 KHz
41 46 Hz 270 Hz 500 Hz 1.77 KHz 7.50 KHz
2 11
123
4
Trk 1
5
876
BASS
TREBLE
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F
High Pass
Front
High Pass
Front
2 channel Amp
Mid Range
Front
Mid Range
Front
2 channel Amp
Mid Bass
Front
Mid Bass
Front
High Pass
Rear
High Pass
Rear
2 channel Amp
2 channel Amp
Mid Range
Rear
Mid Range
Rear
2 channel Amp
2 channel Amp
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 "Sparky," or "Smokey." Reconnect the
negative terminal only after all connections have been made.
To prevent damage to the crossover while driving, mount it in a secure place. Choosing
the appropriate location will depend upon your vehicle and the complexity of your system
design.Typical mounting locations would be in the same location as your amplifiers and or
crossovers.Never mount the component in a location that would subject it to immersion or
exposure to water.
Once a location has been chosen, securely mount the
FRX-456
using the four screws
supplied.Be Careful! Inspect the area underneath to be sure you are not drilling into wires,
brake or fuel lines, etc.that could be damaged by the drill bit or screws.
310
r
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3
ill Level
2
5
ar F
1
4
Re
K
4
4
.
3
2
7
9
1
0
8
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K
2
7
5
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.
7
4
1
4
3
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5
1
4
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7
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1
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9
id Range
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2
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L
Power
Precision
Ground
Remote
Power
Before beginning, disconnect the negative (-) terminal of the battery prior to working on the
positive (+) terminal to prevent a short to ground.
4 9
YES
Check crossover frequencies for Low Pass points set higher than High Pass points,
check level control setting for sub and rear Fill, and check gain control on the affected
amplifier(s).
STILL LOW OUTPUT- See your Authorized
PPI
Dealer or call
1-800-62POWER.
Check Input cables for signal
by connecting them straight
to the amplifier.
ANY SOUND NOW?
NO
Check Input cables for signal
by connecting them straight
to the amplifier.
YES
Problem is in the FRX-456.
See your local Authorized
PrecisionPower Dealer
or call 1-800-62POWER
Reverse left and right RCA outputs.
OPPOSITE CHANNEL
Reverse RCA inputs
OPPOSITE CHANNEL
Reverse RCAs at head unit
(check Balance Control)
OPPOSITE CHANNEL
Problem is in the head unit.
SOUND IS NOW IN
SOUND IS NOW IN
SOUND IS NOW IN
NO
Problem is elsewhere in
the system. Check head
unit and amplifiers.
SAME CHANNEL
Problem is in the amplifier, speakers or associated wiring of
the silent channel.
SAME CHANNEL
Problem is in the FRX-456. See your local Authorized
PrecisionPower Dealer or call 1-800-62POWER.
SAME CHANNEL
Problem is in the RCA cable.
1. Attenuation- Push this switch in to accept high level RCA inputs (up to 8v) or
direct speaker lead inputs from common grounded (not high
powered) headunits.See diagram below for wiring.
2. Combined Inputs- Push this switch IN to connect Front and Rear Inputs.
Leave the switch OUT for front/rear fading.
3. Rear Inputs- For fading rear fill, connect the rear RCAs from your head unit here.
4.Front Inputs- Connect the front RCAs from your head unit here.
5. After connection- After connecting Ground, Remote, and Power wires, plug in the
Powerlock
connector here.
The next step is to connect the Power, Ground, and Remote wires to your
FRX-456
. The
power wire should run from the mounting location through the vehicle to the battery or
power distribution block. Avoid sharp corners, creases, and sharp body parts. When
passing through any metal wall (i.e. firewall etc.), a grommet must be used to prevent the
wire from chafing and shorting to ground.
The ground wire should be of the same gauge as the power wire. As a rule of thumb, use
as short a length of wire as possible. Find a location near the
FRX-456
that is metal (the
floor is ideal) and clean an area about the size of a quarter to bare metal. Dr ill a pilot hole
in the middle of this area. Be Careful! Inspect the area underneath to be sure you are not
drilling into wires, brake or fuel lines, etc. Terminate the wire with a ring connector and
attach it to the bare metal using a #8 sheet metal screw and washer (not supplied). We
suggest crimping and/or soldering this connection. After the connection is complete, coat
the area with silicone or some similar material to prevent rust from developing.
Finally, the remote wire needs to run to the power amplifier (or antenna remote) lead of the
head unit. This wire supplies a 12 volt signal to the crossover when the main system is
activated.Once you have routed the power, ground, and remote wires through the vehicle,
it is time to connect the wires to the
FRX-456
. Be sure that you have not reconnected the
ground cable to the negative post of the battery.
Cut off excess wire and, using wire strippers, strip the power, ground and remote cables
about 1/8 inch. Locate the power, ground, and remote
Powerlock
™
connector (supplied).
On the top of the connector are three slotted screws.With a small flat-bladed screwdriver,
loosen the screws before attempting to insert the cables. After you have inserted the
stripped end of each cable into the connector, secure it b y tightening the associated scre w.
Check that each connection is tight. If the wires are secure, the connector ma y be plugged
into the
FRX-456
.
8 5
Caution! 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.We recommend the
Directed Audio Essentials adapter p/n (55020). If you are unsure about your head unit
see your local
PrecisionPower
dealer or call
1-800-62POWER.
To use Speaker Level Inputs (common ground headunits only), connect RCA plugs to the
front or rear speaker leads as shown, and push IN the Attenuation switch.
6 7
THESE SPEAKERS: USE THESE OUTPUTS:
Subwoofer Sub Out
Front Front
Mid Bass / Mid Range / Tweeter Mid Bass / Mid Range / High Pass
Mid Range / Tweeter Mid Range / High Pass
Full Range (coaxial or component High Pass
with passive crossover)
Rear Rear
Mid Range / Tweeter Mid Range / High Pass
Full Range (coaxial or component High Pass
with passive crossover)
All crossover frequency controls are detented. Each "click" counted from the fully
counterclockwise position corresponds to a specific frequency. See the Frequency Chart
on page 2 for these values.
Thank you for choosing
PrecisionPower
™
audio equipment. At
PrecisionPower
we proudly
design and engineer the world’s finest audio products.Our award winning products utilize
innovative design and technology to consistently deliver
Absolutely State of the Art™
performance, sound quality, reliability, and value. This
PrecisionPower
product reflects our
commitment to offer you unparalleled v ersatility and quality f or y ears of dependable service
and listening enjoyment.
Do not attempt to service
PrecisionPower
products yourself. Performing exploratory
surgery on your audio equipment yourself will void the warranty. Many parts of your
PrecisionPower
gear 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
PrecisionPower
product will always sound as good as the day it was purchased. Contact
your authorized
PrecisionPower
dealer about obtaining any warranty service through
PrecisionPower
.(See Warranty inside back cover.)
Caution! The extended use of a high powered audio system may result in hearing loss or
damage. While
PrecisionPower
systems are capable of "Concert Level" volumes with
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.
LIMITED TWO YEAR CONSUMER W ARRANTY
Directed Electronics, Inc.promises to the original purchaser, to replace this product should
it prove to be defective in workmanship or material under normal use, for a period of two
years from the date of purchase by the dealer as indicated by the date code marking of the
product PROVIDED the product was installed by an authorized Directed dealer .During this
two year period, there will be no charge for this replacement PROVIDED the unit is
returned to Directed, shipping pre-paid. If the unit is installed by anyone other than an
authorized Directed dealer, the warranty period will be 1 y ear from date of purchase by the
dealer as indicated by the date code marking of the product. Dur ing this 1 year period,
there will be no charge for this replacement PROVIDED the unit is returned to Directed,
shipping pre-paid.This warranty is non-transferable and does not apply to an y unit that has
been modified or used in a manner contrary to its intended purpose, and does not cover
damage to the unit caused by installation or removal of the unit.This warranty is void if the
product has been damaged by accident or unreasonable use, neglect, improper service or
other causes not arising out of defects in materials or construction. ALL WARRANTIES
INCLUDING BUT NOT LIMITED TO EXPRESS WARRANTY, IMPLIED WARRANTY,
WARRANTY OF MERCHANTABILITY, FITNESS FOR PARTICULAR PURPOSE, AND
WARRANTY OF NON-INFRINGEMENT OF INTELLECTUAL PROPERTY ARE
EXPRESSLY EXCLUDED TO THE MAXIMUM EXTENT ALLOWED BY LAW, AND
DIRECTED NEITHER ASSUMES NOR AUTHORIZES ANY PERSON TO ASSUME FOR
IT ANY LIABILITY IN CONNECTION WITH THE SALE OF THE PRODUCT. DIRECTED
HAS ABSOLUTELY NO LIABILITY FOR ANY AND ALL ACTS OF THIRD PARTIES
INCLUDING ITS AUTHORIZED DEALERS OR INSTALLERS. Unit must be returned to
Directed, postage pre-paid, with: consumer's name, telephone number, and address,
authorized dealer's name and address, and product description. IN ORDER FOR THIS
WARRANTY TO BE VALID, YOUR UNIT MUST BE SHIPPED WITH PROOF OF
INSTALLATION BY AN AUTHORIZED DIRECTED DEALER.ALL UNITS RECEIVED BY
DIRECTED FOR WARRANTY REPAIR WITHOUT PROOF OF DIRECTED DEALER
INSTALLATION WILL BE COVERED BY THE LIMITED 1 YEAR PARTS AND LABOR
WARRANTY. Note: This warranty does not cover labor costs for the removal and
reinstallation of the unit.
BY PURCHASING THIS PRODUCT, THE CONSUMER AGREES AND CONSENTS THAT
ALL DISPUTES BETWEEN THE CONSUMER AND DIRECTED SHALL BE RESOLVED
IN ACCORDANCE WITH CALIFORNIA LAWS IN SAN DIEGO COUNTY, CALIFORNIA.
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