QPM is the ultimate DAP (Digital Audio Player), and takes the
now-familiar Questyle architecture, impeccably machined from 6063
aluminum, and wraps it in 3D glass and an exclusive black anodized
finish. QPM incorporates Questyle’s proprietary Current Mode
Amplification and Pure Class A BIAS control, and takes them to levels of
performance that reach the limits of laboratory test gear: 0.00049%
total harmonic distortion + noise, and an astonishing 110dB signal-noise
ratio.
Increased power ensures that the QPM will drive any headphone or IEM,
via standard 3.5mm single-ended output, or the increasingly-popular
4.4mm fully-balanced output. A full range of digital inputs and audio
formats are supported, with PCM processed up to 32-bit/384 kHz, and DSD
natively processed up to 256 without conversion to PCM or DoP.
Adding to its versatility, the QPM can connect via USB to mobile
phones and used as an external DAC and headphone amplifier, providing
greatly improved sound. Finally, a 10-hour battery life and external
memory up to 2TB make the QPM useful in the studio, or as a companion on
long flights.
Questyle QPM 
