what's the loudest percussion instrument?

What's an EXTREMELY loud percussion instrument, maybe a non-conventional instrument like Mahler Box?

Does anyone know what "wooden plank" is?

a Gong, with a microphone aimed at it that's plugged into gigantic speakers

A meteorite falling on earth. :)

The bass drum is pretty loud. So is the tam-tam... perhaps the thundersheet too... and bells.

Can you hit a thundersheet with a sledgehammer or would that damage it? What can you hit it with that would be make a "sfffffz" sound

It depends on the effect you want.

The best thing is a combination of percussion instruments. Timpani+BD+Cymbals can produce a good sfz effect. Brake Drum+Snare Drum Rim Shot can also produce a jolting effect. China Cymbal+Almost Anything can be loud. So can a Tam-Tam/Timpani/BD combo.

If I had to guess about wooden plank, I would presume it to be a whip/slapstick.

the bigger, the louder (usually).

Also, I would imagine a very big woodblock hit with a hammer would make a LOT of loud sound.

Otherwise, just mike anything and that should do it :P

for a natural sound , without any speakers or mic's , i think its the "derbakeh" it has a pretty high sound especially when doing some advanced techniques in it.

a brake drum has a really piercing sound.

The Hammerblow can be really loud depending on the surface you're going to hit it, for instance this big wooden box.

depends on how hard you hit it...

The "Brake Drum" is something new to me.... I didn't know that thing.... where can I hear the sound of the Brake drum ?.... is it similar to the Anvil ?

As far as I know the Anvil can be any metal piece that produces a Metallic Strike Sound... (the Anvil of the Orchestra in my place is actually a Car Rhine) it doesn't have necessary to look like this:

Here's some virtuoso brake drum. I wouldn't watch the whole thing, but skip around, maybe minute by minute. As it goes on it gets slower and slower, so at the end you can here what individual blows sound like. Note that there are computer sounds in this piece as well, you're not hearing just brake drum.

Broken Drum - Matthew Burtner

The brake drum can be played with a variety of beaters. Usually drumsticks, but vibraphone mallets can be used for more eerie soft effects, brass mallets can be used for very loud harsh, bright accents, and in this case it would appear he's playing it using... triangle beaters? I'm not entirely sure.

Here's some virtuoso brake drum.

that is freakin awesome

Ok, Thanks EnigmusJ4, I heard everything I wanted to know...

Anything thin yet heavily metallic.

The Punjabi Dhol for sure!!! 

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