Most importantly, how do you feel about the racquet with the string at that tension? If you feel the racquet is like a piece of wood, then you might want to consider lowering that tension because in a long period, it may not be good for your arm and your wrist. Usually, beginners don't go over 23 lbs in tension.
it feels better when i got this wilson titanuim pro my mom bought me everytime at practice i couldnt hit the birdie with the wilson and when i got this i find it easier to hit. plus my coach said that wilson is not good for badminton but for tennis
right on. it will probably feel a little loose/ right on. the nanospeed 100 is a great racket. it looks really nice, and plays well good choice.
Well, your coach might be a Yonex fan because Wilson racquets are not all that bad. My friend's [K]Tour is pretty nice. Just use whichever racquet you feel most comfortable with. There is a sticky regarding this topic, so I'm not going to explain it here.
The impact sound is dependent on what shuttle you use (feather/nylon), and what string. Here is a review sticky by our most trusted member - DinkAlot. Otherwise, in Yonex Japan's website, they have a chart for their own line of strings.
Well, technique counts much more than the string itself. You give LD a racket with BG65 @18lbs, I think he can make more sound than most of us here using BG66@25. The key (under the assumption that the string is under usable condition) is, the timing and the impact point. Off center hit with slow swing speed can not make any noise or provide any good hand response.
It's a good choice as a starter racket. I just started playing badminton again last month and bought NS100. The string is BG66 with 22 lbs. The feel is good and it is easy to handle (3UG4). Been using steel racket for too long. Still, only you will know whether the racket feels right for you. May want to try out other rackets if possible so you can make some comparison.