Here's an example for a controller going up to 16 kHZ. http://www.iskydance.com/index.php?c=product_show&a=index&id=1644 http://www.iskydance.com/index.php?c=pr

Here's an example for a controller going up to 16 kHZ. http://www.iskydance.com/index.php?c=product_show&a=index&id=1644 http://www.iskydance.com/index.php?c=product_show&a=index&id... (no affiliation). Would need a DMX fader to control it though.