by michi » Sat Jan 16, 2010 10:54 pm
I had a listen and, in my opinion, both drums are at a pitch where they are playable and sound OK. You could go considerably further with both of them. It really depends on what sound you want and like.
If you tighten them more, you'll obviously get higher pitch, but you'll also get shorter sustain (less ringing) and an increase in volume. Be aware though that, the tighter the drum, the more difficult it gets to produce full and fat tones. A very tight drum requires considerable better and cleaner technique than one that isn't cranked to the hilt. (Also keep in mind that, the tighter the drum, the shorter the life of the skin.)
One way to tell whether you've gone too far is to listen to the bass. If you crank a drum too much, eventually you will choke off the bass and you no longer get a nice-sounding "boom" but something more like a dry "tock". If you reach that point, you've gone too far. On the other hand, with a drum that's too loose, you tend to get a bass that sounds more like "booooooiiing".
Also, try hitting the bass hard and sharp (making sure to keep contact time between your hand as short as possible, but hitting hard). If the skin is too loose, you'll find that the bass sort of "crashes": the hard hit produces not just the fundamental frequency but also excites the skin such that you get higher-order harmonics. Because the skin is so loose, these dampen out very rapidly, making for an unpleasant collapsed sound, quite similar to what a stereo system sounds like when you play it so loud that the bass drivers can no longer keep up.
It really is all up to you. In terms of risk of breaking the skin, it doesn't sound like you are anywhere near that yet with these drums.
Cheers,
Michi.