The Woo Headphone Amp

"Have you heard the Woo headphone amps?" Todd Garfinkle of M•A Recordings pulled me over. I told him that I hadn't—but then I have not kept up with the market in headphone amps. "Have a listen." So I did, over Sennheiser HD800 headphones. The M•A Recordings Seeing Unknown Colors (MO 15A) sounded great through the Woo Audio WA6 ($650), without the touch of extra brightness that these 'phones are prone to.