Pass Laboratories HPA-1 Headphone Amplifier $3,500 Review

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“he reproduction of both the lowest and highest of the frequency extremes is the best I’ve heard from a headphone amp anywhere near the HPA-1’s price. The same can be said for its micro- and macro-dynamics, transient response, inner detail, midrange transparency, and background silence. Within and quite above its price, I can’t think of any anything negative to say about the HPA-1’s sound quality.”



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