I bought my (4) AT Pro25's online from AMS for $109. Originally I bought them for tom mics for my drums but my guitarist borrowed one and he was very impressed as was I with how well it worked on his cabinet.
I like the high spl handling capability of the pro 25 as well as it's hypercardioid polar pattern. On stage needless to say a tight pick up pattern is a must!
The one thing I dont like about the mics is the "very slight" tonal inconsistency from mic to mic. This is fairly easily corrected with some eq magic however.
The universal mount is highly adjustable and the body of the mic is very low profile making it very versatile for instrument micing situations.
To say that it is rugged is an understatement. Mine have taken a beating and are still like new.
If any of you guitarists are looking for a dynamic mic alternative for your cabinet, you might consider the Audio Technica Pro25.
With its hypercardioid pattern, high spl handling, and freq resp leaning to the low to mid range it produces a fat beefy tone for both live and studio application.
The Audio-Technica Pro 25 is a dynamic microphone that I've got experience using in the recording studio, but it seems like it would work well for live shows as well, but I don't do any live sound so I can't say so from experience here. The mic has a hyper cardioid pick up pattern, so it's best to point it directly at your signal and up close. The mic is labeled as a drum mic, and that's the experience that I've got with it as well.
My experience with the Audio-Technica Pro 25 is in the recording studio to record tom tom drums for the most part. I've also tired it on kick drum, but determined that I liked the mic best for tom tom drums. I'm sure that it would work well for other drums as well, and it wasn't all that bad on kick drum either - I just prefer something with a bit more roundness to it. The last application that I've tried the Pro 25 for is for a bass guitar cabinet, which also worked well. The mic is overall pretty versatile, and since it is so small, it's incredibly easy to fit in tight places if you need to. I haven't used it on snare drum, but I would definitely not be reluctant to try it next time on the bottom of a snare, as I generally don't mess with the standard formula of using a Shure SM57 on top. In fact, it would be quite easy to place this on the bottom of a snare due to it's extremely small size. The mic overall doesn't have the biggest sound, but I still wouldn't be surprised to find that it sounded good for a variety of applications that I haven't used it for as well. While this wouldn't be the first mic that I would go to for any one application, it's definitely a useful mic and I couldn't argue with anyone for using it for a variety of applications.