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Born in Fire

The distinctive heatsink of the NAP 500 power amplifier has become a hallmark of Naim Audio quality.

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In order to create this complex structure from solid aluminium we collaborated with a specialist foundry in North Wales more used to casting high-performance parts for aerospace and defence applications than for high-end hi-fi. They offered the kind of quality and fine tolerances our flagship amplifier demanded.

The distinctive heatsink of the NAP 500 power amplifier has become a hallmark of Naim Audio quality.

The manufacturing process involves multiple steps — first a pattern is created from which the injection tool is cast. The tool is then heated to incredibly high temperatures (the exact number is a closely-guarded trade secret) by virtue of a massive kiln (pictured) before molten aluminium is injected. once the part has cooled and solidified the outer mould is broken away with high-pressure water jets to extract the finished aluminium piece. 

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