I've yet to meet a person who hasn't liked the 104/2, actually.. although I am very sure those people do exist. haha
Anyway, in regards to THX reference level, which is what I figured you were using, the 104/2 is rated by KEF literature at the following 112dB:
Frequency response (standard): 55-20,000Hz +/-2dB at 2m on design axis
Frequency response (with matching KUBE): 35-20,000Hz +/-2dB at 2m on design axis (-6dB at 20Hz, Q=0.5)
Sensitivity: 92dB at 2m on reference axis for a pink noise input of 2.83V (anechoic conditions)
Maximum output: 112dB on programme peaks under typical listening conditions
Still to be honest, and this may be a bit ironic, but I find that 85dB is too loud for my listening tastes in my living room, and quite often find movie theaters to be far too loud for comfort when seeing a movie. Some are loud to the point of being painful, and here's the ironic part, I've worked for two decades in the mobile audio industry, installing car audio systems that can hit in the 160-170dB range at sanctioned events. I also have excellent hearing, because I haven't abused it over the years with prolonged exposure to high SPL.