Well probably most folks around here would agree that 84 dB is too loud for them but that's the 0 point for equal loudness normalization. For me with speakers the 86 dB programe is enough for a party or short listening session tho had a habit going over to 96 dB or so programe with hedaphones when I whose young. Usually start about 74 and end about 80 increasing 1.5 dB step every 30~60 minutes on long listening sessions.