FiiO K13 R2R Desktop DAC & Headphone AmplifierA new way to hear your music The K13 R2R is a fully balanced desktop DAC and headphone amplifier that leans on FIIOs proprietary 24 bit R2R resistor arrays, a powerful 2400mW+2400mW balanced output, and a wealth of tuning and connectivity options. With dual NOS OS modes, LDAC Bluetooth, and a precision 10 band PEQ, it gives you control over both the flavor and fidelity of your music. Fully differential 24 bit R2R DAC At the heart of the K13 R2R are