I am eagerly waiting for the SVS PB2-Plus and would like your opinions on how you like it for Music. I recently sold my Velodyne HGS-18 series II that was awesome for Music and great for Movies. At reference levels and slightly beyond I felt that the HGS-18 was beginning to compress (because of the servo) and some measurements made this a little more clear. I have owned an SVS 16-46 PC+ which was also very good but I did not test the 16-46 for compression at high levels. (By compression, I mean, increase your master volume by +3dB increments and the total SPL also should change by +3dB. At close to reference levels, the sub and maybe the mains too do not faithfully reporoduce the +3dB increments and it starts slowly lagging behind). I have the Rocket RS750 for mains and was thinking of the SVS B4+ but decided to go with the PB2-Plus (given my room size of 14x27x that opens into a kitchen) and get a separate pair of speakers for Music (Onix Ref1 monitors). An external crossover (Marchand XM9L) crossoved over at 80Hz will redirect the bass to the PB2-Plus. The XM9L and the PB2-Plus will be used for both Music and Movies. While listening to Music, I would have the Onix Ref1 and PB2-Plus with Citation 7.1 amps driving the ref1 with a bottlehead upgraded tube pre-amp and RME Digi96/PAD DAC for the front-end. While watching movies, I would be using the RS750s for fronts instead of the Onix Ref1 but the same PB2-Plus thorugh the XM9L crossover. The extra channels in the Citations will be driving the RS750s. Switching between the Onix ref1 and RS750 will be done in line level and hence the need for 2 extra amplifications channels.
So, how good will the PB2-Plus sound for Music ?