Hello, I have already posted this in the built-in forum, but nobody answers. Here is more going on. So, I bought a bass from Emphaser, an EX 12 T3 (30cm). Now my question, what is the best volume for the sub? As a BR pipe I would like to use one with 10 cm diameter and 20 cm length. On the Emphaser I-Net side there is a liter specification of 43.1 on the TSP. In the Auto-Hifi it was tested with 68 liter housing. In the original box of Emphaser it is given with 62 liters. n. Which of the 3 liters is recommended now? 43,1? 68? 62? How would you do it? Thanks for the answers MfG Andy