No, I got it from a chap that was running it through some Epifani's and was scared of blowing them up. I put it with my 2 mark bass cabs, has trouser shaking power, 3 volume dials I like to call 'Pub', 'Academy' and 'Stadium'. He never gigged it so it came in practically new condition and has really stayed that way. No receipts though, just an exchange of money and a long talk about his mindblowing bass collection, there was that awkward moment when I tried it before sealing the deal and had to think about the most technically amazing piece of music I could play to 'impress' and then blundered the first note at about 600w in his front room.
I've been juggling this and a LMII. I've decided to keep the LM as its much more versitle for the music I play, although the tone from the Genz is awesome.
After a 'fling' with the Genz I went back to my Mark and we've patched things up.
I've only really used it for the headphone output over the last 3 months to practice with.