Alright fellas, this is as far as I'm taking this.
Let me re-iterate the basis for this thread.
It was suggested that rising your subs 2 feet or less could improve them.
Then, the game changed and it had to be 2 feet.
Now, apparently it can't be any old riser it has to be a "subtrap" riser.
The problem? Too many people (including me at first
) are saying magical things about risers.
Well, At 7 inches I proved it's baloney.
No benefit was gained at all. It might have actually degraded SQ.
Today, I have measured the results from a 2.5 foot riser (My ceiling is only 7 Feet 8 inches at the highest..)
(Which actually places the top of my sub to a ridiculously high height).
I have down firing subs so the driver itself is at 2.5 feet but the top of the subs rise to over 3.4 feet.
Here are the results. On the floor and on the risers.
So, where am I at now?
I'm thinking the mind is very powerful. It hears what it wants. Regardless of the evidence.
Do subdudes work? Sure, for decoupling.
Thats a benefit. But so do Hockey pucks.
As for addressing vertical modes or increasing the db's of your sub by raising them?
Not in my universe.
Now of course my subs could use significant improvement.
However, those will come from better horizontal placement and room treatments with a BFD. NOT by going UP.
I mean seriously, take another look at the ACS Bass trap SPL LOG chart.....For $600 WITH a Trap built into the riser it don't look all that good folks. Not much better than what I've done. Which is proof to (to me at least) it doesn't work.
I hope we've done some good, at least in this thread.
Remember, I was certain in the beginning that risers were a new found godsend. Now, I just feel duped.
Maybe, just maybe, I DO have to hang them from the ceiling! hehehe