I'm guessing about 1972.Acousta-Voicing was only a couple of years old. TDS hadn't yet been licensed and LEDE was about 10 years away.Was it still just pink noise and 1/3 octave analysis or had the "TDS and LEDE revolution" begun?Dynamic is the first thought that comes to my mind. Lots of power. But I always thought of the Westlakes as "harsh" (a function of crude dispersion control and lack of time correction, in spite of the external phase corrected EQ) which wasn't helped by a little slap reflection off the ceiling and console which tended to destroy mid-band definition. The bass was well-controlled and tight. Overall, a work in progress, a step in the right direction from what went before. IMHO.What were the subjective qualities of the early Westlake rooms?No. That would be meaningless. Hidley's approach was an integrated environment, a closed system. Auditioning a "part" of the system alone would be of no particular value.did you compare thoroughly with and without the EQ?