Hi! I´m planning to build a 2x10 or 2x12 ported cab with basslite s2010 or s2012. I have made some calculations in winisd and the optimum box was calculated to be 53.16 liters with a tuning frequency of 60.22Hz with the s2010. The tuning seems a little high I think. Can anyone give me some advise of how I should proceed? I´m thinking about lowering the tuning to around 50Hz but should I change the volume of the box in that case? I also made some calculations with the s2012, but it seems like it would be a rather big enclosure to get it good and I would like to keep it in the smaller league but still be able to play a bit louder than my sealed 1x12 (also with basslite) that I currently use. I only use a standard 4-string. So E is the lowest I get! The design is going to be vertical with a square port at the bottom of the front.