I've used a pair of these for PA for small bands for almost 25 years. I'd like to know more about them. I didn't even know what model they were until on close examination I found a little paper label stuck to the inside edge of the jack plate with the number "KP-2502-C" and a serial number. The only thing I've been able to find about them is that they look virtually identical to the KP-250 which I guess was fairly popular. They have 2 separate fuse holders for low and high frequencies. Currently these have 2.5A and 1.5A AGC fuses; are these the right values? (they seem small). They also have two locking 1/4" jacks to keep the speaker cords from falling out—something I've never seen on any other speaker. Would appreciate anything anybody can tell me about them. They didn't come with a manual and Klipsch doesn't seem to offer one.