EXCURSION HX2 1054 - Page 3

2
EXCURSION
It is recommend that you have your new EXCURSION SHX Subs professionally
installed by your authorizied EXCURSION dealer. This will ensure use of proper
installaon techniques & materials. If you choose to perform your own installaon,
the following instrucon will give you direcon making your purchase complete.
The factors for the port area are manifold and can not be reduced only to depend
on the cone area of the woofer that is used. But at least it is a good advice not to
go with less than 1/7 of the cone area for ported and 1/4 for bandpass enclosures.
While you are building up and tuning your sub system you should use a trial-port.
This should be longer than calculated or recommend. While tuning the system
you can find the best sounding length by shortening the port in aprox 2 cm steps.
The final tuning in the car does not only result out of what you do with the port.
Also the posion of the port in the enclosure and surrounding areas and posion
in the trunk have notable impact. The load-through of rear seats are also uncalcubale
as well size and construcon type of the car. This easy effect with different results.
Please do NOT use carpet or cloth within the port or inside the enclosure. It has
bad effects on the air flow. It is recommend to round up the ends of the port and
ensure a glossy surface where ever the air moves inside the enclosure or port.
The moving air mass will speed up and thank you by producing less side noises.
You can also prevent the port itself from resonang. The techniques are the same
as you know from building enclosures or damping doors. You can use energy
absorbing material or you can raise the sffness of the port by bracing.
To have your subwoofer system playing clear and acurate you must follow the
idea of an acouscal "dead" workplace, with just the moving cone. First of all,
the enclosure itself might be not rigid enough. In most cases you can raise the
sffness by implemenng braces, that connect in best way four walls. Or at least
sff up the baffle against back-wall. You can build enclosures with wallthickness
of many cenmetres, but bracing will have same effect with less weight! Now,
when your enclosure is sff and rigid to save you against bomb aacks, you can
put it in your trunk. Do not forget it is important to fix it in the trunk of your car.
For further direcon consult an authorizied EXCURSION installaon specialst
Pre-Installaon Instrucons: