hi, I have revel f32 speakers with a rating of 87 db , and a nominal impedence of 6 ohm , with a dip down to 3.5 ohm at 250 hrtz, can someone tell me what that translates to as far as db with a pass xa 30.5 or a pair of xa 60.5 ? I have a small room 12x16 . thanks chrissain