Any opinions on this modification to the AL1500? http://techcomnetworks.com/ve2jka/forum/showthread.php?t=177 I currently have the blower on mine set at the highest/loudest speed for contests. I'm sure this mod decreases the noise, but it looks like the airflow to some parts of the amp would be removed/cut back as well. Torsten N4OGW Starkville, MS