DB99 bass volume level-what is your setting?

Bass at high noon and ambience at 8 a.m.....speakers are 4 feet (to face of drivers) from back wall....the bass in my room was easy to dial in...I've got bass traps and other treatments...this is important because of the bass power these mothers create....I don't like my windows to vibrate. 375 hours on mine and just about there...the initial sound was upsetting...it took over 80 hours to even listen but not critically
Larry