I have been testing the Peavey Vypyr 75 for any possible flaws, though it seems almost perfect i found one thing which bugs, there are some sustain issues with this amp, when you let a note ring out it dies abruptly midway and not slowly the culprit i have come to know is the noise gate, it is the one cutting out out the sustained notes. There is no fix as of now. This is the only flaw i have found till now. Apart from this issue the amp is super. No major qualms as such. Will keep you guys posted if i find anything else worth mentioning.