Diki I think people approach the PAS like a standard PA. Because of the design and the array of small drivers you really have to set up the gain stages correctly. The system is so accurate the slightest overdone frequency or gain is magnified. The best thing about the system as far as I am concerned is the CLARITY compared to the Mackie system we have. You can hear everything no matter where you sit in the room.
The Bose Forum is a good source for pros and cons. Like I said though our principle reason for making the jump (without even hearing a system) was the Forums and the ease of set up and the system is very light. ITs only 300 watts so if it were to power a band I would suggest and it seems each player has their own system,
The hardest thing to get used to was the lack of stereo. but really in a club you dont want just the center of the listing area to hear a good mix. You want everyone to hear the SAME mix. The BOse does that very very well.
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Yamaha Tyros 4
Yamaha Motif XS8
Roland RD700
Casio PX-330
Martin DC Aura
Breedlove ATlas Solo
Bose MOD II PA