What makes a tube amplifier worth $55,000? Nothing. But the NAT Audio Magna Amplifier sure tries to justify its ludicrous price tag, delivering 160W of pure, testosterone-piquing power. It uses three different tubes to achieve this, the 6N1P-EV, the 6N30P-DR and the Eimac 450TH. The whole thing weighs in at a hefty 88 pounds, and it's sure to get your music loud enough to make your neighbors want to move. [Product Page via BornRich]