Proper system planning is the best way to maximize the performance. By planning your installation carefully you can
avoid situations where the performances or reliability of your system is compromised. As with all high quality car
audio components, professional installation is recommended. Our authorized dealers have been trained to know how
to maximize your systems sonic potential. They are a valuable resource in helping you with your system design and
installation. The following are some of the general policies in installation, by following these policies in the
course of installation will ensure a problem-free and excellent job :-
Before cutting any holes, make sure that there is proper clearance for the speaker
structure and wiring to clear all objects that may impede the proper installation.
Keep speaker magnets away from computer systems that are mounted throughout
most vehicles.
Study your automobile thoroughly before you drill or cut any holes. Take extra care
when working near gas tanks, gas lines, brake or hydraulic lines and electrical
wiring.
To prevent short-circuits and product damage, keep all wiring away from sharp
edges and moving parts.
Wear eye and ear protection when using power tools.
Keep the woofers and tweeters away from the metal fillings and shavings. Once
foreign objects are stuck to the magnets or tweeter dome, it will be virtually
impossible to remove them. Keep the tweeters in their protective bags until final
mounting to prevent any possibility of metal dust or chips from passing through the
grille and accumulating on the dome.
Exercise caution when working with the speakers with the grille removed. A slip of
the hand with a screwdriver or other tool can result in irreparable damage to the
cone or dome. Do not touch the cone or dome.
Do not install the components where they will be subject to excessive heat, moisture
or dust; or where they will be kicked or repeatedly bumped or brushed.
Make absolutely sure that the woofer is connected to the low pass output and the
tweeter is connected to the high pass output of the crossover network. If these
connections are reversed, low-frequency signals will be fed to the tweeter without
fuse protection. In this case, the tweeter may be damaged. Such damage is not
covered by the warranty.
When removing or installing the grille on the speakers, be careful not to brush the
woofer’s rubber surround or the tweeter’s dome with the edge of the grille. Cutting
or tearing the surround or dome will destroy the unit.
Make sure your radio/cassette/CD player and or other equipment is turned off
while connecting the speaker’s terminals. Turn on the various components and
slowly advance the volume control ONLY after checking all connections.
For maximum dynamic performance, use weather stripping to insure a tight seal.
Do not mount any speakers or crossovers where they will get wet.
Remember the Golden Rule "Measure twice ... cut once."
Tools Required
These are the tools required to complete the basic installation of the AutoTomorrow Silver
Series Component Speaker System. Additional tools are necessary for more custom work
unit.
Electric drill with bit
Screwdriver
Flat blade screwdriver
Wire Strippers
Crimping tool
Saber saw, hole saw or nibbler
Utility knife
Silicon sealant or weather stripping (optional)
Electrical tape
Double Sided Tape
Amplifier Requirements
The Silver Series Component Speaker System requires a minimum 8 watts (RMS) per
channel to achieve reasonable listening volumes in a moving automobile without
clipping the amplifier. Be sure that you supply the speakers with enough unclipped
amplifier power to drive them properly. Not enough power supply or clipped
amplifier power supplied to speaker may damage the speaker. Always remember
that more damage can be done to a speaker by under-powering and clipping
your amplifier than any other way. As a general rule, power of amplifier can be
between 1.2 times and 1.5 times more of the speaker’s power handling depending
on the efficiency of the amplifier. AutoTomorrow recommends 150 Watts per
channel as a maximum so as not to exceed the thermal or mechanical limitations of
the Silver Series speaker system. Any amplifier between 8 Watts and 150 Watts per
channel may be used. If you choose to use an amplifier with more power than 150
Watts per channel, be very careful, you can damage the speaker system if played
too loud.
AutoTomorrow’s speakers will produce reasonable volume levels in the automobile
environment using moderate amplifier power. However, the use of a low powered
amplifier with to try to attain very high volume levels can lead to overdriving the
amplifier. This will generate high distortion levels which can easily damage
loudspeakers, even when the amplifier’s rated power is far below the maximum
rated power of the loudspeaker.
As a rule, do not turn the volume up above the point where you hear distortion on
musical peaks from either an overdriven amplifier or mechanical noise from an
overstressed speaker. For the best performance and reliability, select an amplifier
with slightly more than maximum power you are likely to need to generate the
desired volume levels. This margin of reserve power will ensure that the amplifier
will not attempt to deliver more than its design allows.
Warning : Excessive sound pressure level can permanently damage your hearing.
The maximum volume levels attainable with our speakers, combined with highpower
amplification, may exceed safe levels for extended listening. When listening
at high volume levels always use hearing protection or turn it down.
Mounting Locations
There are many possible choices of mounting locations. The automobile’s factory
locations will usually dictate the mid bass woofer mounting position. However, for the
tweeters, Because of its small size and multiple mounting options, the tweeter can
virtually go anywhere. AutoTomorrow cannot recommend specific locations for the
tweeters for each car, but we can give some general tips.
Try to keep the tweeters as far to the sides of the car as practical, avoid placing
them above ear level unless the woofers are also above ear level. Place the tweeters
in similar locations on both sides. The tweeters are often best mounted in the Apillar
facing each other, or pointed towards the listening position. The best way is
to try with the tweeters loose as they are easy to move around. Try a few locations
by just placing the tweeter or taping it in a location and listening to ensure the
desired stereo image and high frequency dispersion are achieved before
committing to a location by drilling holes in the automobile
Speakers must be mounted using methods and locations that promote component
longevity, system reliability and proper acoustical performance. The entire
speaker system must be well secured to the respective mounting surfaces, be
located in safe and logical locations of the automobile.
Check the available mounting depth before installing the speaker. Use care when
removing factory grills, door panels and factory speakers.
For door installations, check the clearance of the windows throughout the entire
range of the window’s travel.
To achieve a good soundstage, we recommend that a 2 way front system with the
mid bass woofer mounted on the dashboard is the best. The high position pf the
mid bass is needed for a high and stable soundstage.
To avoid any possible sound cancellation from the front of the speaker to that of the
rear of the speaker, cut a panel of Masonite or MDF(particle board) to firmly mount
the speaker if the vehicle’s original cutout is too big.
Control and Connections
Tweeter Level Control
The five positions switch which are -4dB, -2dB, 0dB, +2dB and +4dB in the crossover box
give you enough flexibility to adjust the relative volume of the tweeter with respect to the
midrange and high frequencies. The 0dB position is referenced as equal output from the
midrange and tweeter. The moderate and hi position offers +2dB and +4dB more output
respectively from the tweeter. The low and sub-low position is -2dB and -4dB which offer
less output from the tweeters. Adjust this control to your listening preferences.
Connection to the amplifier
The Silver Series crossover is supplied with a removable screw type connector. Use the
wires("+" & "-") from the amplifier and insert into the crossover connector input+ (+WF)
and - position(IN-) correspondingly and tighten the set screws. Please refer to the
installation diagram for details.
Connection to the Mid Bass Woofer
Use the wires from the + and - terminal of the mid bass woofer and insert into connector
output+ (+WF) and - position (OUT-) of the crossover correspondingly and tighten the set
screws . Please refer to the installation diagram for details.
Connection to the Tweeters
Use the wires from the + and - terminal of the tweeter and insert into connector
output+(+TW) and - position(OUT-) of the crossover correspondingly and tighten the set
screws. Please refer to the installation diagram for details.
NOTE: Be sure to connect the positive crossover terminals to the positive speaker
terminals and positive amplifier terminals, also ensure that the negative crossover
terminals connect to the negative amplifier and speaker terminals.
Wiring Instructions
Use non- conductive grommet and/or protective sleeve to protect all wires where
they pass through any metal panel. All wires should be neatly tied at regular
(approximately every 5 to 6 inches) intervals and routed in a neat and orderly
fashion so as to prevent them from interfering with the mechanics of the location in
which they are installed.
Never run wires outside or beneath the vehicle where they can be snagged by road
hazards or the moving parts of the vehicle. Use existing wire channels, sills, panels
and molding strips inside the automobile to hide the wiring for neat appearance and
safety.
It is important to make sure that all wiring connection are in phase, that is
positive(+) is connected to positive(+) and negative (-) is connected to negative(-),
an out-of phase connection will cause a dislocated sound image and lower the bass
output. We suggest using a minimum of 16 gauge ( ideally 12 gauge) premium
cable.
All interior wires should be hidden from view. Wires under the dash must not be
visible while sitting upright.
We recommend that any wires connected to any positive battery post must be fused
within 45cm of wires length from the battery and prior to the power cable’s first pass
through any metal sheet.
All connections of cables and wires to terminals must be properly terminated.
