What if any difference does port direction make when building an ML-TQWT? I'm finishing up a new design and was ready to cut frount facing ports when I came across the "solo" :http://diyaudio.8m.com/Solo/solo.html where the port fires downward. Would the down firing port do anything to quell the ripples in the midrange inherent to TQWT's?
-Jim
-Jim
No. Assuming the vent is in the lower 5th of the cab, placement is for looks/convenience. Bottom exit is nice if they sit on carpet as it attenuates port noise somewhat, allowing a smaller/shorter vent. If on a hard surface, the distance can be adjusted to further mass load the vent, either allowing for a shorter than predicted one or 'pumping up' the bottom end some. Ditto rear firing.
GM
GM
The "inherent" ripples idea comes from the modeling (Martins) / RTA's I've seen compared to comparable to straight up bass reflex enclosures. Sure stuffing helps, but it seems like "cheating". I was hoping to get by with as little stuffing as possible.
Thanks for the suggestions. I think I'll try a downward firing port.
-Jim
Thanks for the suggestions. I think I'll try a downward firing port.
-Jim
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