3 WAY ELECTRONIC CROSSOVER // OWNERS MANUAL
CXR-7
CONTENTS
• Specications 3
• Features 4
• Controls, Indicators, and Terminal 5 - 8
• Installation 9 - 10
• Final System Check 11
• Troubleshooting Guide 12
2
SPECIFICATIONS
3
Power Source:
Input Current:
Distortion:
Frequency Response:
S/N Ratio:
Separation:
Crossover Frequencies (Continuously Variable)
Front High-Pass, X1:
X2:
Rear High-Pass:
Subwoofer:
Crossover Slope Rate
Low-Pass:
High-Pass:
Subwoofer Boost:
Input Impedance:
Output Impedance:
Output Gain:
Output Voltage Level:
Dimensions:
14.4 Volts DC negative Ground
0.5 Amp Max
0.01% THD @ 1 Volt Output Level
10Hz - 30Hz (-3dB)
95dB
60dB
25 - 400Hz
500 - 8000Hz
25 - 400Hz
25 - 400Hz
18dB per Octave 3rd Order Butter Worth
12dB per Octave 3rd Order Butter Worth
Single Octave 0dB to 12dB (Variable) at 45Hz
20K Ohms
100 Ohms
1:2 (+6dB)
7 Volts Max
5.5"(W) x 7.5" (L) x 1.75"(H)
FEATURES
4
• EXCLUSIVE INFINITE CROSSOVER DESIGN
• ASYMMETRICAL ELECTRONIC CROSSOVER
DESIGN
• BASS BOOST CIRCUITRY WITH QUASI-PARAME TRIC EQUALIZATION
• DC/DC REGULATED SWITCHING POWER SUPPLY
• FREQUENCY MULTIPLIER
• PARALLEL INPUT SWITCH
• FRONT/REAR INPUTS WITH FRONT/REAR/
SUBWOOFER OUTPUTS
• ADJUSTABLE OUTPUT LEVEL
• STEREO/MONO SUBWOOFER
• GOLD PLATED RCA CONNECTORS
FEATURES AND SPECIFICATIONS SUBJECT TO CHANGE AND OR IMPROVEMENT WITHOUT NOTICE
A sealed enclosure causes a woofer’s frequency re spo nse to roll off
at a rate of 12dB per oc tav e below the en clo sure’s resonant frequency. The ba ss boost circu itr y’s quasi-parametric equalization
pro vid es a si ngl e oct ave boost of 12dB at 45Hz to ensure sm oot h
and accurate bass res pon se.
For a source uni t having a single pair o f signal ou tpu ts an adapter
is needed to split the source signal for the front and rear inputs.
With the mobile e lec tronic crossover, by en gag ing the parallel input
feature, an ext ernal adapter is no longer necessary.
This power s upp ly de sig n pro vid es constant voltage to th e crossover regardle ss of the battery’s volt age to ensure consistent out put performance at all times. This design also eliminates switching
noise sue to voltage fluctuation.
The mobile ele ctronic crossover features fron t and rear prea mp inputs with front and re ar outputs as well as constant subwoofer
output that is independent of the fron t/rear fa der control on th e
source un it.
The fro nt high-pass section is equipped with f requency multiplier
switch that c an be used to multiply the crossover frequency points.
With the additional se lec tab le crossover points system setting becomes an art of preci sio n.
CONTROLS, INDICATORS, and TERMINALS
5
CXR -7
1. POWER INPUT TERMINAL (RED)
3. REMOTE TURN ON INPUT TERMINAL (ORANGE)
5. LEFT/RIGHT FRONT CHANNEL SIGNAL INPUTS
6. PARALLEL INPUT SWITCH
4. POWER INDICATOR
2. GROUND INPUT TERMINAL (BLACK)
8. LEFT/RIGHT MIXED IN/OUT TERMINALS
7. LEFT/RIGHT REAR CHANNEL SIGNAL INPUTS
9. FRONT CHANNEL HIGH-PASS FREQUENCY
SELECTOR
10. REAR CHANNEL HIGH-PASS FREQUENCY
SELECTOR
This wire should be connected to the positive terminal o f you r vehicle battery or other constant +12V sourc e.
“OUT”: If the source unit has independent fron t an d rear chan nel
outputs disengage the para lle l input by sli din g the switch to th e
“out” position.
This wire sho uld be connected the vehicle’s chassis. Ensure that
you have a goo d c onn ect ion . When connecting the wire make sure
that there i s n o p ain t o r o the r i nsu lat or blo cki ng the co nne cti on.
AS INPUT T ERM INA L: Connect to th e su bwo ofe r output of the
source un it.
AS OUTPUT TERMINAL: I f r unn ing a multi cros s-o ver sy ste m, connect to the front channel input terminal of the next ele ctronic crossover.
Connect t o the rear channel o utp ut of the source uni t. MAKE SU RE
THAT THE PARA LLE L INPUT SWITCH IS AT THE “OUT” POSITION!
Used to sele ct the front ch ann el high-pass crossover frequency
between 25Hz a nd 400 Hz (or 500Hz and 8K Hz when its frequency
multiplier is in the “x20” position.
For sele cti on of rear cha nne l high-pass crossover frequ enc y between 25Hz and 400Hz.
This w ire should be connected to th e remote t urn on wire or antenna lead of the source unit. Should your system not have any turn o n
leads, yo u can wire the remote ter min al to an ac ces sor y lead which
turns on wi th you r c ar’s ignition.
To be connected to the fro nt cha nne l o utp ut of the so urce unit.
“IN”: When th e parallel input is in this position, th e input signals
coming thro ugh the front ch ann el si gna l inp uts are split an d direc ted to the front rear channels s imu lta neo usl y (this feature is to
be used w hen the source unit has no separate fron t, re ar, or subwoofer outputs).
This LED lights up when the interna l s wit chi ng power supply is activated and the unit is operational.
6
CONTROLS, INDICATORS, and TERMINALS
7
11. FRONT CHANNEL HIGH-PASS FREQUENCY
MULTIPLIER
17. LEFT/RIGHT FRONT CHANNEL OUTPUT
TERMINALS
18. REAR CHANNEL OUTPUT LEVEL CONTROL
19. LEFT/RIGHT REAR CHANNEL OUTPUT TERMINALS
20. SUBWOOFER OUTPUT LEVEL CONTROL
21. LEFT/RIGHT SUBWOOFER OUTPUT TERMINALS
22. SUBWOOFER OUTPUT LEVEL REMOTE CONTROL
TERMINAL
12. SUBWOOFER FREQUENCY SELECTOR
13. BASS SHAPER BOOST SWITCH
14. PHASE INVERTER
15. SUBWOOFER STEREO/MONO SWITCH
16. FRONT CHANNEL OUTPUT LEVEL CONTROL
Positioning this switch at the “x20” position chan ges the rang e
of s ele cta ble crossover f requency for the front channel hi gh- pas s
fro m 2 5Hz - 400 Hz to 500 Hz - 8 K H z.
Connect to the fro nt cha nne l a mpl ifi er lef t/r igh t i npu ts.
Used to adjust the re ar cha nne l o utp ut sig nal le vel .
Connect to the rea r c han nel am pli fie r l eft /ri ght in put s.
Used to adjust the subwoofer channel output signal level.
Connect to the subwoofer channel amplifier left/right inputs
Allows yo u to set the low-pass cro sso ver fre que ncy for the subwoofer channel between 25Hz and 400Hz.
When activated th is circuit p rovides a si ngl e octave boost of 12dB
at 45Hz to equalize the woofer enclosure.
Placing the switch a t the “180” position shifts the sub woo fer o utput’s signal 180° out of ph ase relative t o the front a nd rear output
signals.
For selection of stereo or mon o m ode su bwo ofe r o utp ut.
For adjusting the fro nt cha nne l o utp ut sig nal le vel .
AMPLIFIER WIRING DIAGRAMS
8
Fou r-Cha nnel “bi -amp ” sy stem (st ereo fron t/re ar)
Two-C hann el “ tri- amp” sys tem
CXR-7
CXR-7
INSTALLATION
9
CROSSOVER TERMINAL CONNECTED TO TERMINAL
Left/right fron t i npu ts Source un it Fro nt pre-amp outputs
Left/right rear in put s Source un it Rear pre- amp ou tpu ts
Left/right mixed in/out (as input) Source un it Subwoofer pre-a mp out put s
Left/right mixed in/out (as output) Another compatible electron ic crossover Fro nt inp uts
Left/right fron t o utp uts Fro nt amp lif ier Left/right inputs
Left/right rear ou tpu ts Rear amplifier Left/right inputs
Left/right subwoofer outputs Subwoofer amplifier Left/right inputs
Power input terminal (b+) Battery Positive terminal
Gro und in put te rmi nal (g nd) Vehicle chassis Bare m eta l s pot
Remote turn -on in put te rmi nal Source un it Remove control wire or power antenna lead
ELECTRICAL WIRING DIAGRAM
10
Ele ctri cal wiri ng d iagr am
CXR-7
FINAL SYSTEM CHECK
11
1. Pre -Se tti ng
A. Set front , rear and subwoofer amplifier input
gain to half of their maximum.
B. Pre set th e c rossover frequencies and output
levels as follows.
2. Turn th e s ource unit on and slowly turn the vo lum e u p:
A. If no sound at all:
i) Tur n t he sys tem off immediately.
ii) Check all connections (ref er to pag e 9 fo r d eta ils ).
iii) Use a volt/ohm meter to check your gro und co nne cti ons .
iv) Check your power input, ensure th at it is properly con nected to the positive terminal of a 12V power source .
v) Check to see that the re mot e o n/o ff terminal is connected
prope rly to a +12 V s ource.
vi) If eve ryt hin g i s o n o rder try tur nin g t he power off and then
on again. If probl em per sis ts, refer to the trouble shooting
guide on the next page for assistance.
B. Obvious distortion:
Tur n t he sys tem off and refer to the tro ubl e s hoo tin g g uid e
on the next page.
C. Out of phase probl em (i. e. Abn orm al Bas s):
Tur n t he sys tem off and refer to the tro ubl e s hoo tin g g uid e
on the next page.
3. NOISE CHECK
Before mo unt ing th e m obi le ele ctronic crossover and the
other audio components permanently, p lea se con duc t t he
following noise check:
1. Start the engine and turn on so urce unit.
2. Rev the engine and vary the audio volume to check for
radiated engine noise. If there is an al ter nator whining
noise or “tic-tic” noise, re fer to th e t rouble shooting
guide on the next page. If the pro ble m p ers ist s c ons ult
your local re tai ler /in sta lle r f or ass ist anc e.
3. If no unwanted noise is detected, double check all wiring
and cables to ensure s afe pl ace men t. The n s ecu rely
tighten the mounting scre ws of the un it.
Bi-Amp System
Fro nt frequency selector: 160Hz
Fre que ncy mu lti pli er: X 1
Rear freq uen cy sel ect or: 160 Hz
Subwoofer frequ enc y s ele cto r 160Hz
Fro nt out put 10 o’c loc k p osi tio n
Rear output 10 o’ clo ck pos iti on
Subwoofer output level 12 o’clock position
Tri-Amp System
Fro nt frequency selector: 200Hz
Fre que ncy mu lti pli er: X 20
Rear freq uen cy sel ect or: 120 Hz
Subwoofer frequ enc y s ele cto r 120Hz
Fro nt out put 10 o’c loc k p osi tio n
Rear output 10 o’ clo ck pos iti on
Subwoofer output level 12 o’clock position
C. Pre set th e v olu me of the so urce unit to its
minimum (otherwise, when the source un it is
tuned on, the sudden surge of hi gh pow er from
the amplifier might cause damage to the audio
components.
TROUBLE SHOOTING GUIDE
12
SYMPTO M
1. No power.
2. “Mo torboat ing”: t he unit po wer ind ica to r going off repeat edly wh en the aud io
sy stem is on.
3. The unit h eats up qu ickly e ven whe n the
au dio sys tem is at moderat e volum e.
4. Whe n the e ngine i s r unning the aud io syst em
ha s a whi ning no ise that remai ns unchang ed
or disapp ears wi th the inc reas e o f audio
vo lume.
5. Whe n the e ngine i s r unning, the au dio sys tem
has a whining noise that increases or decreases
with the volume of all sources (radio, CD, or MP3).
6. When the engine is running, the audio system has
has a whining noise that increases or decreases
with the CD/MP3 mode ONLY.
7. Obvious distortion at low volume.
8. Over all sound effect good, but bass is abnormal
(more bass at the two extreme settings of the
balance control that at the center setting).
PROBAB LE CAUS E
• Chec k all t he grou nd, B+ and rem ote ter minals for tig ht connect ion.
• Chec k all f uses.
• Use a volt/ ohm met er to chec k all p ower wi re conn ected t o s ee if t he syst em
is rece ivi ng +12V.
• Chec k if th e unit B+ power i nput is connec ted to directl y
to a +12V power s ource.
• Chec k the b attery vol tage. I f low, recha rge or repl ace it.
• Chec k if th e unit has a good gro und connec tion.
• Chec k all g round c onnecti ons.
• Chec k for s peaker sho rt.
• Chec k all p ower wi res and ensure that t hey are connec ted to a +12V power source.
• Chec k all g round c onnecti ons.
• Chec k if th e sourc e unit and the mo bile el ectronic cr ossover are ground ed at t he same reference poi nt.
• Inst all a 1 0 amp i n-l ine fil ter on the red power wire of the un it.
• If w hining persist s, check t he alte rna tor dio des and th e volta ge regu lator.
• This is com monly k now n as “r adiated ” noise . I t is no t cause d by th e u nit and thus i s beyon d t he scop e of
thi s manua l. Plea se contact your l ocal re tailer/ install er for ass istance .
• Outp ut leve l of va rio us chan nels no t compa tib le, refer t o F INAL SY STEM CH ECK on the pre vious p age.
• The subwoof ers are “out-o f-phase ” w ith eac h other thus c anc elling the bas s when the balanc e control i s
at the cen ter pos iti on. Che ck the wiring from th e ampli fie r to th e subwo ofers ( pos itive [ +] and negativ e [ -]
to negativ e [-]).
// Features and specications subject to change and or improvement without notice.
Though we tried our best to ensure that this manual is free and clear of errors please don’t hold us responsible for printing errors. //
www.cadencesound.com
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