What's the port size and tuning frequency and how tall is the sonotube ?
I used the sonosub software to get my values.What's the port size and tuning frequency and how tall is the sonotube ?
Im thinking it may have alot to do with the placement in the room. have you tried moving it around to a few other possible locations to see if its sounds better?
That looks like a whole lot of insulation in that wide a tube. I have thin eggcrate foam on the inside of my 24" tube and it doesn't fill it up nearly so much as yours. I recall a member stating that my sonosub really shouldn't have the eggcrate in it, saying it would decrease spl. I never took it out, so I really can't say either way, but if they were correct, then that may explain your results.Does anybody else think I have too much insulation inside the sonotube? Does it occupy more volume than I think it does?
You do realise that this thread was last posted to six years ago.From my little experience with enclosures. When the original volume is correct according to design and you load an excessive amount of stuffing or wall padding, you tend to lower the bass emphasis to the lowermost range leaving the sound lacking in fullness and upper/mid low frequencies. I don't know if this is valid and whether it applies in your case. If you have not yet stuck the stuffing to the wall of the cylinder, try playing it without any stuffing and the end cap on. This could give you an idea.