Calculating "peak" SPL for this driver combination | diyAudio
The Music Store, Inc. - dB Technologies OPERA 12 2 way active speaker 12" woofer, 600W RMS, max SPL 129 dB, asymmetrical CD horn, Dimensions: 350x642x349 mm, weight: 14.3 kg (31.53 lbs.)
PRX812 | JBL Professional Loudspeakers
M7 High Efficiency Speakers in White – Daniel Hertz S.r.l.