Hi Bridgeman ,

Bridgman
I had some homework to do to answer your questions .
Sub is home made and is about 15 years old 12". I Friend of my is an electrical engineer and built it for me .

I have a Yamaha RX-A850 and it looks like I can just individual frequency.
I used the YPAO mic and auto set up my surround and it set my QS8s at 100hz
I like to listen 75-90db for music .2 channel .Bare with me I fairly new to audio .
I am really enjoying this hobby but it never seems quite right or I am going deaf, quite possible, RJ


M100 V4, VP180 V4,QS10s x4 V4 M2 V4 X2 EP500 V4 X 2,ADA 1500-3, ADA1250 - 7 N3