The Wu family are among the most creative audio designers around. Woo Audio, run by Jack Wu, along with his father Wei and brother Zhidong, is theplace to go for incredible tube amps. But this time, they’ve released something a little different. The WA11 Topaz is a portable headphone amp with no tubes in sight.
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https://www.themasterswitch.com/woo-audio-wa11-topaz-review
