FiiO K17 R2R: R2R Without the Compromise 9 September 2026 in homepage, reviews, dac-amp TAGGED IN : FiiO , R2R , dac-amp , PEQ , balanced , streaming , NOS Rating: ★★★★★ FiiO’s flagship desktop DAC/amp with the AK4499EX chips swapped for a discrete 24+5-bit R2R ladder, keeping the K17’s 4W amplifier, 31-band PEQ, streaming and touchscreen.