The QP1R / QP1 is a high-resolution portable music player (DAP), employing the perfect sound esthetics coupled with the most advanced engineering technique, targeted to both audiophiles and music lovers. The elegant industrial design, the capability of supporting DSD128 and 24 / 192 kHz PCM files, the architecture of pure class A, discrete transistors and components, the built-in headphone amplifier and the Questyle's patented “Current Mode Amplification” technology, make the QP1R / QP1 a masterpiece of portable DAPs.