I'm trying to figure out a way to split my feeds audio to a external speaker so i can listen in without interrupting the feed. Right now i have a simple Y splitter, one going to the feed computer and the other going to the external speaker. The problem with this is i have no way of controlling the external speaker volume independantly without interrupting the feeds volume. Ive been looking for a inline volume controller that is more professional looking but haven't had much luck. My shack is rack mounted so it would be best if i could find a controller that i can mount into the rack. Are there any recommendations or solutions out there?