@cp... You've got it backwards. The 990 is the heavier of the two units at 12.7kg. The AV7005 is 10.1kg.

A mfgr could insert a little lead "stabilizer" since it's only $0.89 per pound, spot price. BUT, your pre would then either be barred in CA or would sport one of those bright yellow "...known to the state of California to cause death or birth defects. Please wash your hands after using." stickers. (Same sticker I just saw on my Christmas lights.)

Best if they just increase the thickness of the pc boards, use better caps, make the structural components heavier, cut out all plastic, and bring back the noiseless toroidal power supply.