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Join Date: Mar 2010
Location: Adelaide, South Australia
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The lower tune would depend on the driver used. You can use a certain size extra for all drivers if you want but port size, port velocity and added low gain all have to be balanced. For the most part adding about 1cuft will be enough for a lower tune. But you can also just make a longer port. You will have to simulate that though to see if it is your desired response shape.
The cabinet could be 34-36" deep and that will gain you the extra volume depending on port volume and net volume needed. I will have a AM7315(clone) sitting on top of mine so who knows which way I will go. I will be trying a few different cabinets altogether anyways.
Last edited by chrapladm; 12-23-2018 at 08:31 PM.