Rainbow audio EL-T19 Einbauanleitung Seite 15

Important: Review mechanical suitability before beginning installation into the selected location!
Built-in auto parts should not be removed. Take care with window mechanics and door
handles during door removal. Likewise, during rear area installations use care around the
gas tank. This area should in no case be worked on in any way. In general, pay close
attention to hidden cables and lines, which should not be cut or removed. Self installation
of the loudspeakers is possible, however take note in advance of necessary specialized
technical information about connections and interior auto safety mechanics.
The most acoustically favorable installation location is not always mechanically suitable. In this case an
appropriate compromise between optimal sound reproduction and mechanical attachment should be
determined.
Door Installation: In order to achieve optimal frontstaging, the tweeters should not be placed too deeply
in the door area. They should be installed, for instance, at shoulder height and as far forward as
possible, in the vicinity of the instrument panel. Suitable installation positions here are the side view
mirror area and the upper door lining. Placing the tweeters on diagonal spacer rings (about 20°) can be
tonally advantageous, if thereby the arrangement is done in such a way that the left tweeter radiates to
the right door and/or right seat and the right tweeter radiates sound toward the left door and/or the left
seat. (In order to achieve optimal tweeter placement the scenario described above should be followed.)
When possible, the woofers should be placed in the bottom 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 to achieve optimal woofer
performance, i.e., kickbass, the total door space must be used.
Important: For double woofer sets the door volume should be 30 liters or more.
By using doorboards it is necessary to have at least 10-15 liters of volume per each
woofer.
That means that the splash guard on the doors must be cut in a u-shape in the woofer area and fixed
against resonating. In addition it must be made certain that the woofer is sealed to the door lining to
avoid an acoustical short-circuit. The door space should, in order to promote the flow of the sound
waves, be loosely draped with an absorbent material. A further measure helpful for optimization of sound
is suppressing the resonance of the door metals (on the door inside) with special absorbent mats. If the
door lining has a tendency to resonate, a wooden plate should be installed for further support. If this is
not possible, foam material can be used to lessen the effect. For installations in linings of 2-door vehicles
the same procedures and considerations are recommended.
Rear Windshield Deck: The woofer should be arranged in direct proximity to the windshield. This
installation position prevents interior-specific difficulties in high-range sound reproduction. The tweeter
and midrange should be positioned as near as possible to the woofer. Additionally, attention should be
paid that the tweeter is the appropriate distance from the rear window and head rests. The rear window
reflects and elevates sound, thereby rendering high frequency sound reproduction shrill and
overpowering. Head rests absorb high frequency sounds.
With rear windshield deck assembly, the use of angle mounts or tiltable housings is also recommended.
A tilted position allows sound to be reflected off the windshield directly toward the front seat, thereby
rendering the sound fuller and more voluminous. Connect the tweeter parts before cutting into the rear
window deck and determine the best position for optimal sound rendition by listening to music at a
moderate volume. The tweeter and midrange should be inserted thereafter to the extreme right or left
(important for
(fig. 1).
stereo location) in the
15
rear window deck