Bybee Audio tweeks. IQSE

They do work on the outside, with the printed side facing inside. This is a good way to experiment with placement before opening up the component, or if you're not comfortable with putting it inside. 

Here are some good tips about use and placement:

http://tweekgeek.blogspot.com/2017/06/sonic-tonic-bybee-iqse-lessons-learned.html

There’s a new review of the iQSE, and other Bybee products up on dagogo:

https://www.dagogo.com/bybee-technologies-quantum-products-review

Thanks, tommylion!

Does anyone know for sure if the Bybee IQSE advertised (see below) on sale for $119 is the same one others are selling for $149?
http://www.partsconnexion.com/bybee_enhancer.html

Thanks...

If I believe what I heard when I installed them in my system : I say a big Yes.
I have 2 in my mono amps, 1 in the pre with great effect.