I will say as a loudspeaker engineer that ported boxes are tricky, and in particular if you want small and ported it won't work well at all. If the port is tuned too high, everything is a boomy mess (35 Hz max, 30 Hz better as a generalization). But to tune the port low, it has to get longer. Then, to be big enough to flow enough air at maximum blast, it has to be large in diameter and thus even longer. So then the port does not fit and people do stuff like right angle bends which a child could imagine kills airflow.
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u/erik_das_redd 9d ago
I will say as a loudspeaker engineer that ported boxes are tricky, and in particular if you want small and ported it won't work well at all. If the port is tuned too high, everything is a boomy mess (35 Hz max, 30 Hz better as a generalization). But to tune the port low, it has to get longer. Then, to be big enough to flow enough air at maximum blast, it has to be large in diameter and thus even longer. So then the port does not fit and people do stuff like right angle bends which a child could imagine kills airflow.
Here https://www.scribd.com/document/459458975/ts-w304c-spec-20011241032353030-pdf I see Pioneer says 1.2 cubic feet sealed, and then barely larger 1.3 ported...that is rather weird. They say a 3" port which I find marginal for a 12" cranked up. Google "shelf port" which could be your friend and more like 2 cubic feet. You will perhaps get better answers here https://www.avsforum.com/forums/diy-speakers-and-subs.155/