TEAC's fully analogue headphone amplifier aims to deliver "highest level of sound quality"
The HA-507 is an analogue design with a fully balanced and dual-mono configuration, and two independent power supplies – one ...
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TEAC’s HA-507 Headphone Amp and Preamp Eschews Digital Circuitry For All-Analog ...
At $1,999, the Technics HA-507 is a pure analog headphone amplifier and preamplifier with a balanced/dual mono configuration.