I know I've heard that Monuments song a long time ago, cause I've seen that video, but really the vocals in that are very Sevendust-ish. If someone thinks that's what Fallout boy sounds like, they're never actually listened to Fallout Boy.
On another note, I've had my K-tre since 2010 and it's awesome, very much more in the rectifier camp voicing wise than any of Riveras other amps and can be a bitch to dial in just right. It's also very monochromatic tone wise, it does one tone well on the overdrive channels, and raising or lowering the gain doesn't really change the tonality of the amp. It's also an amp where there is a definite best setting eq-wise, and setting it for something else just kinda makes it sound weird.
Also not a dig at you Reza, as I'm a dirty amp slut too, but at the end of the day I think you have what the K-tre does already, and to borrow a line, "You have to be happy with what you have to be happy with."