In stock, now shipping. Its a beauty.
iFi Audio Zen Dac is a compact, desktop usb dac and balanced headphone amp. Improve the sound from your computer or phone, via the usb input, out to your headphones. iFi Zen Dac takes a digital signal via usb input and has 2 line outs on the rear panel - rca and 4.4mm balanced; it also has 2 headphone outs on the front - 6.5mm and 4.4mm balanced.
Perfect with Sennheiser HD660s, which includes a 4.4mm balanced cable. USB powered, optional 5v power supply.