Bose 901 Series V Questions

I’ve had my 901’s for many years now, and still enjoy them. But recently I swapped out the equalizers (I have two pair) for equalizers from Deer Creek Audio, and WOW!  I’m hearing details I’ve never heard before. (A new preamp also undoubtedly helps). I listen to both music and movies/tv, and as part of a home theater setup, they work great. 

Thank you ! ...Great Response !...I appreciate all your input..

I got to be on a first name basis with the apartment manager and a few of the local constabulary with introductions handled by a pair of 901's. They were hung from the ceiling in the reflex position. As I recall the Bose pre ran through an SAE 2100L and then into A Stereophon amp, and then into a Phase Linear after the Stereophon blew. I think listening to Led Zeppelin through a pair of 901's at 11 should be on everyone's bucket list. BTW, I thoroughly enjoyed my 501's for years, and I wish I had them back.

@mbarrett635 - new equalizer - this is probably what I should have done. But in the end I wanted something new anyway. Great speakers but they did have limits.