Rainbow CS 275.28 Platinum active Installation Manual Download Page 15

15 

 

• J2:  

A-B

 = Close = 24dB high pass 

B-C = Close = 18dB high pass with phase correction 

 

J2 should be in A-B position if woofer and tweeter are on 
axis 
 
J2 should be in B-C position if woofer and tweeter are out 
off axis (e.g. tweeter in mirror-triangle or in door) 

 
 
• J8:  

A-B = Close = 18dB low pass with phase correction 

B-C

 = Close = 24dB low pass 

 

J8 should be in A-B position if distance between woofer and 
tweeter is large and woofer and tweeter are off axis. 
 
J8 should be in B-C position if distance between woofer and tweeter is in axis. 

 
 

Basic setup (default): 

 
• J1:  

A-B = Close = High pass phase correction “OFF” 

• J2:  

A-B = Close = 24dB high pass 

• J6:  

A-B = Close = Tweeter SPL-Level 0dB = linear 

• J8:  

B-C = Close = 24dB low pass 

 
 
 
 
 

ATTENTION:

   The jumpers J1, J2 & J8 are for professionals only who have the knowledge and measurement 

equipment to measure frequency response and phase in the vehicle. If you do not have any 
measurement equipment and you are not an installation professional please leave these jumpers 
on default position! 

 
 

Attachment of the Crossover 

 
Fasten crossovers (X) to a suitable, easily accessible, and well-ventilated 
location in the vehicle with the accompanying self-tapping screws 3.9 x 32 (Z) 
through the holes in the bottom plate (see fig. 9, No. 8). Reassemble crossover as 
shown on the right side with provided screws. 
 
 

Note: 

Do not

 

attach crossovers with sink screws! When using sink screws 

the mounting feet

 

can be damaged. During the placement of the 

crossovers a large distance from cable

 

harnesses should be 

maintained in order to avoid inductive distortion

If inductive 

distortion occurs, immediately change the position of the crossovers. 

 
 
 
 
 

Summary of Contents for CS 275.28 Platinum active

Page 1: ...80 Watt Part No 231444 CS 275 28 Platinum active 2 Way Component System 180 Watt Part No 231445 Please read installation manual carefully before beginning installation RAC GmbH Co KG P O Box 1225 7489...

Page 2: ...ge as a result of use or misuse of this product Working on Automobile Do not use your automobile until all components of the loudspeaker system have been secured to the interior framework Failure to d...

Page 3: ...14 Figure 6 Attaching the Crossover 15 Dear valued customer We congratulate you on your purchase of our superior product and thank you for placing your trust in Rainbow We have put together this inst...

Page 4: ...r the purpose of altering the parts or function is considered foreign interference and grounds for termination of the warranty For the purpose of technical safety the loudspeaker should only be attach...

Page 5: ...Mounting depth without with ring 82 mm External diameter without with ring 180 mm Installation diameter 144 mm Fastening diameter 168 mm Woofer Thiele Small Parameter Resonacne frequency 44 Hz DC res...

Page 6: ...udspeakers may be installed in your vehicle in a variety of places In determining the installation location the following information should be considered The position of the speakers has a decisive i...

Page 7: ...tention to frontstaging and sound variations Frontstaging adjusts itself only if the tweeter is not too far from the midrange and or woofer The decision as to the optimal installation location require...

Page 8: ...m area of the door lining The distance between tweeters midrange and woofers should be kept as small as possible to prevent the sound of the loudspeakers from being negatively impacted fig 1 In order...

Page 9: ...high grade steel nuts M4 D Prepare the space for the woofer by smoothing all metal edges and drill holes carefully removing any metal shavings or pieces As needed apply a protective varnish or edge pr...

Page 10: ...t installation Place tweeter J in the prepared opening and put clamp ring from the back over the tweeter housing Use the three set screws S to fix the tweeter by turning them in with the provided alle...

Page 11: ...distortion Rolling up excess loudspeaker cable length is not helpful as it merely increases chances of distortion The Crossovers With all component systems the tweeter range has been provided with a t...

Page 12: ...ed with the positive terminal and the minus connector with the minus terminal Jumpers marked BIWIRING must be closed see fig 6 first diagram Attach the other end of the loudspeaker cable making sure t...

Page 13: ...the unmarked wire with the minus connection Connect the other end of the loudspeaker cable preferably with suitable contacts to the available connection cable of the tweeters see fig 7 and make sure...

Page 14: ...Reference frequency reponse gliding 2dB per octave Recommended with installation of the tweeters directly in the listening axis and or ear proximity e g A or B pillar front instrument panel area with...

Page 15: ...J1 J2 J8 are for professionals only who have the knowledge and measurement equipment to measure frequency response and phase in the vehicle If you do not have any measurement equipment and you are no...

Page 16: ...dirt or metal shavings in the open magnetic system inappropriate installation for use not corresponding to the intended range of application Electrical Defects Damage resulting from electrical and th...

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