What one change to your room, system, or setup made the biggest improvement?

New room construction from scratch. 

This is one of the best threads on this forum recently. No one is showing off and everything is constructive. New-comers to this hobby should bookmark it immediately.

Keep those fantastic experiences coming!

I have a pair of Maggie planers which were placed in the typical 1/3 room plan. I moved them within 6 feet of my listening position and about 5 feet apart. The improvement in dynamics, especially bass definition and slam, were significant!

I have a pair of Maggie planers which were placed in the typical 1/3 room plan. I moved them within 6 feet of my listening position and about 5 feet apart. The improvement in dynamics, especially bass definition and slam, were significant!

@jjss49 On your list – which I like – you put both a speaker acquisition and subs on #3.

If you revised your list and listed speaker choice, speaker positioning, and subs as separate line items, where would they fall in your hierarchy?