Questyle QPM | Digital Audio Player
From Questyle
Quest has no limits. QPM, the flagship portable lossless player of Questyle, beyond itself once again.The more complicated the world is, the more concise we are. We hope you can enjoy high-quality music in an easy way anytime and anywhere.
Design
Inheriting Questyle’s distinctive design style, QPM is visually impressive for its tucked twist, curved surfaces and smooth lines, as well as a more comfortable grip.
Different from the last two generations of Questyle players, 3D glass is first time used for the front and the rear panel of QPM. By overcoming various challenges of processing, different materials are combined together perfectly, which makes QPM a work of art.
Your Portable Music Hall
The Portable Lossless Audio Player, QPM, can be used independently and loaded with tens of thousands of lossless music files, which will become a music hall in your pocket.
Portable DAC & Headphone Amplifier
In addition, QPM can be used as a DAC for mobile phones via USB connector and it will provide you with significantly improved sound.
Full Balance
QPM with the High BIAS setting indicated by red light of the BIAS indicator on the side of QPM, the amplifier works in pure Class A state and provides endless energy for the amplifier. Plus the 4.4mm full-balanced output, QPM will give full performance to your headphones and bring you an exceptional listening experience.
Pure Class A BIAS Control
QPM supports pure Class A BIAS Control system. With the High BIAS setting, the output static current doubles, the THD+N and higher harmonic distortion drop to the lowest level, which is like driving a super sport car, just imagine the car is set to "RACE" mode.QPM immediately attains stronger power and quicker responses, enhancing the performance dramatically.
Specs
AIFF, DFF, DSF, APE(Normal/High/Fast), PCM 32kHz - 384kHz (16/24/32Bit)
DSD128(1Bit 5.6MHz), DSD256(1Bit 11.2MHz)
DAC
Outputs
/Full balanced out(4.4mm) 3.5mm headphone jack
Output
4.4mm headphone jack: 3.9Vrms, RL=300Ω; 2.3Vrms, RL=32Ω 3.5mm headphone jack: RL=32Ω, Po=74mW; RL=300Ω, Po= 13mW
4.4mm headphone jack: RL=32Ω, Po=161mW; RL=300Ω, Po=51mW ±0.17dB(20Hz - 20kHz) 3.5mm headphone jack: 108dB; 4.4mm headphone jack: 110dB 3.5mm headphone jack:
0.00055%@13mW(0dBFS 1kHz@48kHz 24Bit), RL=300Ω
4.4mm headphone jack:
0.00049%@51mW(0dBFS 1kHz@48kHz 24Bit), RL=300Ω
PC OS Requirements for being Used As A Portable DAC
External: Micro SD card (Max. 2TB) x 1
Battery
Display
Dimension