tahvo87 Posted November 20, 2011 Report Posted November 20, 2011 Now i will made new clamshell for 8 15" jbl my box is now 775 litres. and i think i but two 44cm x 12cm port and tuning at 40hz what you think?
tahvo87 Posted January 19, 2012 Author Report Posted January 19, 2012 Now i will made new clamshell for 8 15" jbl my box is now 775 litres. and i think i but two 44cm x 12cm port and tuning at 40hz what you think? hey how to calculate tune of clamshell? its now about 700-720 litres and port is 97cm x 12cm and 10cm deep. is tune now like 31-32hz?
Joe X Posted January 19, 2012 Report Posted January 19, 2012 Your port area is really low and the vent lenght should be 7.56 in to tune to 32Hz if it has no common walls.
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