Lightweight Pass Labs Aleph 1 // Vintage Class A Monoblock Amplifiers // 05011 / 05010 Special Discount [ph6fgeSk]

The Pass Labs Aleph 1 monoblocks are what happens when Nelson Pass decides to give audiophiles an absurd amount of Class A power and zero regard for practicality. 150 watts per channel of pure, single-ended Class A warmth? Check. Enough heat dissipation to fry an egg? Also check. 

The Aleph 1 isn’t just an amp—it’s a power plant. These 100-pound monoblocks are wrapped in massive heat sinks because, when you run pure Class A, heat isn’t a byproduct—it’s a feature. The circuit itself? Ridiculously minimalist—Nelson Pass’s whole philosophy was to strip away everything unnecessary so that the music flows as purely as possible. No feedback loops, no unnecessary gain stages—just a direct pipeline from your source to your speakers. And the front panel? A single blue LED, because Nelson Pass doesn’t believe in gimmicks.

Ship in their original factory packaging