Roadmaster RT15 Fascicule

Dear Customer,
CONGRATULATIONS. The RT15 Tweeters, when used as described, will give you years of 
dependable service in your car, truck, RV or mini-van. We have taken numerous measures in 
quality control to ensure that your product arrives in top condition, and will perform to your 
satisfaction. In the rare event that your RT15 Tweeters contain a damaged or missing item; 
does not perform as specified; requires warranty service or you have a installation problem, 

DO NOT RETURN THIS PRODUCT TO THE STORE. Please call our TOLL FREE number 
US (800) 445-1797

 and ask to speak with a member of our technical service team, or submit 

your questions by E-Mail to customerservice@roadmasterusa.com and a member of our 
technical service team will respond by E-Mail to your questions. Our in-house technical 
service team will expedite delivery of your part, or advise you on installation, or help 
troubleshoot a problem with you. If your product needs warranty service, our technical 
service team representative will help you obtain the fastest remedy possible under the 
warranty. 

• 1" Kevlar Dome Tweeter
• 0.42 oz. Magnet Weight
• 10 Watts RMS per Speaker
• Frequency Range - 2kHZ - 20 kHZ

The RT15 tweeters can be surface or flush 
mounted. Possible locations for mounting 
the RT15 tweeters are the dashboard, roof 
pillars, interior panels, door panels and 
ceiling panels. For a flush mounted 
installation, there must be a minimum of at 
least 1" of clearance behind the mounting 
surface after the tweeter is installed.

• 25mm KAPTON Voice Coil
• NeFeB Magnet Composition
• Speaker Wire Length 39" per Speaker

Mark Screw Holes

Mark Screw Holes

Mark Wire Hole

Mark Wire Hole

2 Flat Mount  Bases

2 Angle Mount Bases

2 Angllee Mount Bases

e Mount

e Mou

2 Flush Mount  Trim Bezels

2 Retaining Rings

2 Speakers & Wire

Speakers & Wire

The space behind the 
speaker opening must be 
deeper than 1" or 2.54 cm 
to prevent interference 
with any of the vehicle's 
functions or features. 
(i.e.,window operation)

1"

1. Your stereo may have a blown fuse. Replace fuse with the same amperage and style.
2. You may have improper wiring. Check all wires for a secure connection. 

Your stereo may not have enough power, you may need to install an amplifier to 
drive the speakers. Connect the RCA jacks to an amplifier.

You may have poor filtering of your alternator. If that is the case then you 
may need to add an alternator filter to the power lead.

You may have corroded battery terminals and/or a weak battery. If the terminals on 
the battery are corroded clean them, then check the sound. If the sound system is still
making noises check battery strength. If it is low recharge or replace the battery.

First make sure the balance control is set correctly. If the balance is set correctly 
your stereo may be defective or the speaker may be defective. To troubleshoot 
this problem you MUST change both positive and negative leads of each channel with 
the positive and negative leads of the opposite channel, if the same speaker has 
no sound then the speaker is no good, if the opposite speaker has no sound then
your stereo may be defective.

Strip 1/2" of insulation from the ends of the wires.

Twist together and bend as shown.

Wrap with electrical tape.

2 1/8"(53.97mm)
Diameter of Hole

1"

Retaining Ring

Flat Base

Speaker & Wire

Trim Ring

2 Surface Mount Trim Bezels

Parts Shown Unassembled

les

s

Mark Screw Holes

Surface Mount
1. Twist the surface mounting bracket 
and flush trim bezel and separate 
them from the speaker and wire
2. Place the flat or angled mounting 
base onto the surface where the RT15 
Tweeter will be installed.  Use a marker 
to mark where the screw holes will be. 
Drill pilot holes with a 1/16" drill bit. If 
you want to run the speaker wires 
behind the mounting surface, you will 
have to mark and drill a hole for that as 
well.
3.  Thread the speaker wire from the 
vehicle's audio system, out through the 
hole in the mounting surface, and 
splice them with the speaker wires as 
shown in the wiring section of this 
manual.
4. Slide the base along the wire, align 
the holes in the base with the pilot 
holes. Use supplied screws to secure 
the base.
5. Place the surface mount trim bezel 
over the speaker and push until the 
base and the bezel can be twisted 
together. 
Flush Mount

1. Choose a location in your 
vehicle that has a minimum 
clearance behind it of at least 1". 
Make sure you can temporarily 
remove the mounting surface so 
you can secure the RT15 tweeter 
with the retaining ring.
2. Mark a 2 1/8" diameter circle.
3. Cut out the circle, 
4. Thread the speaker wire from the 
vehicle's audio system, out through 
the hole in the mounting surface 
and through the retaining ring. 
Splice the audio system wires with 
the speaker wires as shown in the 
wiring section of this manual.
5. Take a RT15 speaker fitted with 
the flush mount trim ring and the 
flat mounting base and splice it to 
the speaker wires. (See Wiring)
6. Insert speaker and wire into 
hole.

If you are installing the RT15 speakers to upgrade/replace your existing 
speakers, mark the polarity of the speaker wires, disconnect the speaker 
wires and remove the existing speakers from your vehicle. Temporarily place 
the RT15  speakers in the location you selected in your vehicle and connect 
the existing speaker wires. Temporary placement of the speakers in the 
vehicle helps in estimating length of wiring needed, as well as, how the 
speakers will sound in various locations of the vehicle. 

We understand that automotive audio equipment installations can be 
troublesome at times, even to the most experienced of installation 
technicians. If you are not confident working with electrical wiring, removing 
and reinstalling interior panels, carpeting, dashboards or other components 
of your vehicle, please call our TOLL FREE help line (800)445-1797 and our 
in-house technical service team will answer your installation questions.

Possible Mounting Locations

Color of wires are for illustration only.

When connecting the speaker wires 
to your speakers in a new 
installation, you should follow the 
wiring instructions from your audio 
system’s manufacturer. 

For most systems the positive wire 
attaches to the positive speaker 
terminal and the negative wire 
attaches to the negative terminal. 

If you are installing the RT15 
speakers to upgrade/replace your 
existing speakers, mark the polarity 
of the speaker wires, disconnect the 
speaker wires and remove the 
existing speakers from your vehicle. 

Rear Channel

Car Stereo

RT15 Tweeters

Front Channel

+

+

95.5

Angled Surface Mount

Flat Surface Mount

NOTES

Before installing this product, you must check the vehicle's manual for locations of 
safety equipment such as air bags and CO2 systems installed in the vehicle. Accidental 
deployment of air bags may result in serious injury. 

VIRTUAL REALITY SOUND LABS

®

 products are designed and manufactured to provide a high level of trouble-free performance. VIRTUAL 

REALITY SOUND LABS

®

 warrants, to the original purchaser, that its products are free from defects in material and workmanship for 30 days 

from the date of original purchase. As part of our commitment to product excellence, VIRTUAL REALITY SOUND LABS

®

and/or its affiliates 

routinely improve the designs, materials or production methods of its existing products. Because it is impractical to publicize all changes in 
every product, we reserve the right to make such changes without notice.
CONDITIONS OF WARRANTY:
If during the 30 day warranty period your new product is found to be defective,  VIRTUAL REALITY SOUND LABS

®

 will repair such defect, or 

replace the product, without charge for parts or labor subject to the following conditions:
1. All repairs must be performed by VIRTUAL REALITY SOUND LABS

®

 and/or its affiliates in Eatontown, New Jersey.

2. The equipment must not have been altered or been damaged through negligence, accident, or improper operation.
3. The replacement of parts are exempted from this warranty when replacement is necessary due to normal wear and tear.
4. All warranty claims must be accompanied by a copy of the sales receipt or bill of sale.
5. Repair or replacement parts supplied by VIRTUAL REALITY SOUND LABS

®

 under this warranty are protected only for the unexpired portion 

of the original warranty.
6. In the case of car stereos, this warranty does not extend to the elimination of car static or motor noise; correction of antenna problems; 
costs incurred for the removal or reinstallation of the product; damage to tapes, speakers, accessories or car electrical systems.
7. VIRTUAL REALITY SOUND LABS

®

 will not be responsible for any charge incurred for installation.

OWNER’S RESPONSIBILITIES:
VIRTUAL REALITY SOUND LABS

®

 will make every effort to provide warranty service within a reasonable period of time. 

SHOULD YOU HAVE ANY QUESTIONS ABOUT SERVICE RECEIVED, OR IF YOU WOULD LIKE ASSISTANCE IN OBTAINING SERVICE, 
PLEASE CALL TOLL FREE 1-800-445-1797, 8:30am - 4:30pm EST.
In order to provide you with the proper warranty service, we request that you adhere to the following procedure:
1. Include a copy of your sales receipt or bill of sale with your unit when it is returned for warranty service.
2. If it is necessary to return your product for service, please return it securely packed, preferably in the original shipping carton, and freight and 
insurance prepaid to the following address: VIRTUAL REALITY SOUND LABS, Service Department, 41 James Way, Eatontown,  New Jersey 
07724.
3. Please include a detailed explanation of the problem you are having.
4. If your product is found by VIRTUAL REALITY SOUND LABS

®

 to have a defect in material or workmanship, within the warranty period, it will 

be repaired or replaced at no charge and returned to you prepaid.  Where permitted by Iaw VIRTUAL REALITY SOUND LABS

®

 liability shall be 

limited to that set forth in this warranty. This warranty shall be the exclusive remedy of the purchaser.

VIRTUAL REALITY SOUND LABS

®

 makes no other warranty of any kind, expressed or implied; and all implied warranties, are hereby 

disclaimed by VIRTUAL REALITY SOUND LABS

®

 and excluded from this warranty, VIRTUAL REALITY SOUND LABS

®

 and/or its affiliates, the 

manufacturer, distributor and seller shall not be liable for any injury, loss or damage, incidental or consequential, arising out of the use or 
intended use of the product.

©2008 Intellectual Solutions Inc.,  All rights reserved. All designs, logos and images are the exclusive property of  Intellectual Solutions Inc. and/or its affiliates. U.S. and Foreign 

Patents Pending. 071508  Printed in China 00000