Audiophilepure

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“Maybe the HPA-1’s octave-to-octave tonal balance was more perfect. Maybe the Pass could slide and stomp better. But—because the WA5’s impedance, power, and gain are all adjustable, it could drive less-sensitive, higher-impedance headphones (such as Audeze’s LCD-4s) in a more satisfying fashion than any other headphone amplifier I’ve heard.”