So today I was gifted a Peavey 410TX cab. I currently play through an Ampeg V-4b (reissue) and an Ampeg SVT-112AV cabinet, but welcomed the free gift as it would be nice to have a larger cab at times. I called Peavey, and the original ship date was in 1993 making the cab 22 years old. Surprisingly, I cleaned it up, plugged it in, and it seems to be working fine. All of the speakers move at about the same rate when playing, and it sounds pretty good. Compared to my SVT cab it is definately more full in the lows, but not as present in the mid-to-high-mid area. I have a few questions about the cab, and am hopeful that some Peavy geeks might stop in and be able to drop some knowledge. First of all, the attenuator for the tweeter is missing, there's just a hole on the jack plate where it once resided. I took the jack plate off and felt around inside the cab to see if it had been pushed in or something, but I couldn't find anything loose in there (granted, there was tons of dampening material in there which didn't make my search any easier). I can't tell if the tweeter is working or not. There are two wires (both red) running from the tweeter to the subs, but that's it as far as the tweeter goes. I was thinking maybe someone replaced the tweeter at some point and this particular tweeter just isn't wired for the attenuator? I have also read about doing something to the wiring in these cabs to bring out more of the mid range. Lots of people say "I did the midrange mod to mine", or something of the like, but none of the posts actually talk about what that mod is. Any ideas? Thanks for reading!