What was/is the heaviest weight amp you herd/own

My friend's CAT JL-1 Limited Edition monoblocks -- 192 lbs. each.
Nearly killed myself helping him position them.

This thread is not silly, as an amp with high weight generally means (i)
serious power supplies (SS and tube amps) and/or (ii) serious output
transformers (tube amps).

I had the Krell FPB 700cx which weighed about 165 lbs. I thought that was a monster till I got my Classe Omicron. The bax shipping ticket listed it at 282 lbs with the case. It took two people to move it when I had to adjust the placement in my listening room.

I'm not sure I'd like to own the record holder, but I guess once it's in place there really is no need to move an amp.

I used to own a YBA passion amp.....160lbs aprox, 73kg

As some of you know....I've gone away from the massive to a differernt philosophy of very low mass.A la Michael Green.I've stripped all my components down to bare minimum.Basically only the circiut boards.

I used to own Audio Research M300s, 110 pounds each, 90% of that in the front, it seemed. Slimmed down to Lamm ML 1.1s, 70 pounds each, as I'm not as young as I used to be.

Wow! Some of these figures are staggering to my noobiness.