hello, the course pass 500 (I found it almost new ads 600 E) silent for a good compromise because I wanted something practical, good, and quickly rises. As in any compromise, there are pros and cons, pros, is that it's super fast set up, 15 minutes, I put the speakers in bags roulette (30 E 2 in the super market and the fact you have to buy the feet (60 pair Specials prs from home), so the cot practice was important for me, firstly because I am a woman, and I'm not very patient with stuff. Cot table is very simple .. I find rverb zero, then, I have a multiple effect, for power is ok but you do not sound to a room of 500 people as it is suggested, all fawn, pass a threshold, it takes more heavy stuff, pass the course is perfect for intermediate- the room of 300 400 people, here, I have an amp ac 60 for Rolan little cafs and is perfect for what I do (bossa duo trio and quartet) bye and bizz