So I have a small project with an EHQS 8 and a 70 W Dayton Plate Amp with a 4" Dia. port at 13" long to give a tuning of 25 Hz in a 12" Dia x 36 " Long tubing. Problem is I would like to mount the amp in the tubing and I have been fiddling with ideas on how to do this. Any one ever did anything like this and have a step by step guide as to how they went about it. Pictures of this would also be appreciated as well. The idea to just mount the amp on the other end was bought forward to me already, the sub will be down firing and I don't find that configuration that appealing, especially with a little son that is very inquisitive about my other system these days. Thank you again for your input.