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solid7 wrote:
 If I design a tall enclosure, can a I transfer the ports (in the case of a typical MTM or similar arrangement) from the front or back, to a top/bottom firing arrangement? |
Yes you can move them but they aren't all quite the same. Since the vents tend to play the low frequencies their location can change the amount of room gain they pick up. This is one of the reasons so many designs use rear ported vents. The other thing to consider is port noise. Front ported designs may have port chuffing be more noticeable.
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solid7 wrote:
Secondly, is the box volume the most important consideration, or the box geometry? |
See p-112 (section 5.30) in LDC for info about enclosure geometry. Since it sounds like you are going vented box volume is very important as it will greatly affect the tuning of the speaker.
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solid7 wrote:
My final question pertains to selection of drivers - can anyone please point me to a resource which lays out all of the key fundamentals to driver selection? |
Since you are going vented check out p-61 (section 2.40) in LDC. Beyond what is there I can say there is no substitute for building test baffle and testing drivers yourself.