Nu har jag suttit och läst en hel del om xls elementet från deras hemsida:
http://www.tymphany.com/xls-subwoofer
Dom jämför bl.a 20L sluten låda mot 26L basreflex, Vilket inte gör jättestor skillnad i storleken.
Då min engelska inte är den bästa, Undrar jag vad ni tror om att köpa ett hypex DS 8.0 och använda till denna konstruktion?
Information från sidan:
Conclusion for the vented system:
The port is long and large. This means that the port takes up some space in the cabinet, in this case using a 3 mm thick tube material will take up as much as 4.2 liters of box volume. Also including the approx. 2 litre that the drive unit occupies results in an internal box volume of 26 litre.
Because the port is almost one meter long the port needs to be folded inside the cabinet or build up using a labyrinth approach.
Given the design target from above it has been shown that it is possible to achieve the desired result, but the port need to be part of the cabinet design or folded to achieve the low tuning needed.
It has been shown that a high pass filter for the system is highly recommended to reduce the excursion below tuning.
Vented cabinet data:
Total volume: 26 litre
Port diameter: 70 mm
Port length: 930 mm
Tuning frequency: 25 Hz