What is a good tweak?

[E-Stat]

What measurement technique did you use? I'd like to see your data and set-up.

"Flawed" listening to familiar music.

As for bass traps, you CAN have too many if their combined effects reach undesireably into the mid-range frequencies.

Ok, but that takes a bunch depending upon room and trap size. I use 4-16", 4-12"

Tube Trap placement guidelines

Naturally, there are similar guidelines on the ASC website, but some might find their recommendations biased.

If someone wants to learn how to properly apply acoustical treaments I would start by reading Everest's book: The Master Handbook of Acoustics" and visit Art Ludwigs site for an example of acoustics done the right way

Thanks for the tip.

Mass loading? Gee, wouldn't that fall under damping?

Perhaps it should. I was thinking more of intentionally massive isolation devices.

As for the other methods, one question. How do you isolate the device when it is in the same acousitc environment as your speakers? Placing something on springs may isolate it from a surface, but increase the effects of the acoustic signal, no?

The objective is to provide selective isolation at single digit frequencies. One can achieve results without moving the device outside the room.

rw