Adding Sub to current system

By "eq" I mean an electronic equalizer, not moving things around (do you mean obtaining room equalization by moving the sub?), and my observation is based on the actual use of a REL sub...I assume you haven't heard Silverline Preludes or any other modern "array" type small speakers...properly loaded well designed small woofers (large magnets, metal cones, etc.) can make plenty of bass at very reasonable SPLs...and cleanly, but the addition of a sub increases the level of the lower octaves. Understand? If not, read the reviews, although I bought mine because I listened to them at a friend's, not because of John Atkinson's measurements. I've been a professional musician and sound technician for 40 years, and I play bass among other instruments...I've owned plenty of large woofer speakers (including Altec A7s) and small woofer speakers for both pro and home use...I suggest you invest in some sand so you can pound it.

Go for it...it will even improve the mids and highs as well.

I think we're done now, thank you everybody for your help!
Rpg