I am running BA 9000 MkII sats and sub. They have an 89db sensitivity rating.

Sensitivity (1 watt (2.83v) at 1m) = 89db

What speakers are you running? Where are they situated in relation to where your sitting area is located? Because mine are high up on the wall could be the reason why I need to turn the volume higher to achieve the 75db readings. But I am just guessing.

My room is 18' wide, 12' long and 8' ceilings.

My TV is about 4 feet off the right wall, I sit about 9 feet from the screen +/-.

___________________18'-0"___________
S----------------LF-----[=CC=]----RF

12'-0"

LR__________________X__________X__RR

S = Sub
LF = Left Front Micro 90xII
RF = Right Front Micro 90xII
CC = Center Micro 90cII and TV 32" Sony
LR = Left Rear Micro 80xII
RR = Right Rear Micro 80xII
X = The main two listening areas. A table is between the two X's.

The LF/RF are approximately 6'6" to the bottom of each speaker. They are mounted on the wall with the MBR brackets, angled downwards and in slightly towards the X's.

The RF/RR are on the 12' walls facing into the room, with a slight downward angle and also slightly angled into the room, very slight.

The CC is directly over the TV.

I will get pics posted over the holiday as soon as I get a chance. I have some pics, just have not taken pics of speaker locations.

Does the above "diagram" make sense?

Larry