Sunny,

No doubt the Bose system is amoung the best out there but there are some other choices.

I play mostly small venues - medium to small rooms and I use two M-Audio BX5a speakers. Cost was about $300.00 for the pair from GC. They are "moniters" and are flat which I like. I use just the EQ form the keyboard and it works very well and produces very acceptable sound.

I will likely upgrade to the Bose system this year because with the two M-Audios you still get the uneven distribution of sound -loud up front and less sound in the rear. The Bose system seems to solve this problem which I think will be very helpful. I know there are other good choices but I am not a speaker guru - only have experience with those I have mentioned above.

Hope this helps.

Hammer