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.
Audio Formats Supported SNR THD+N WAV, FLAC, WMA, MP3, OGG, AAC, ALAC,
AIFF, DFF, DSF, APE(Normal/High/Fast), PCM 32kHz - 384kHz (16/24/32Bit)
Sample Rate
DSD Native: DSD64(1Bit 2.8MHz),
DSD128(1Bit 5.6MHz), DSD256(1Bit 11.2MHz)
DAC AKM AK4490 DAC chip
Outputs Headphone out(3.5mm)/Optical out(3.5mm)
/Full balanced out(4.4mm) 3.5mm headphone jack
Output
1.9Vrms, RL=300Ω; 1.5Vrms, RL=32Ω
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
Windows XP & Windows 7 / 8 /10 (32/64bit) / Mac OS X 10.7 or later Memory
Internal: 64GB;
External: Micro SD card (Max. 2TB) x 1
Battery
3100mAh, 3.7V Li-Polymer battery, 10 hours of battery life
Display IPS 2.4” (Sharp LCM) Operating System Linux Body Material
CNC machining aluminum, available in Black, 3D glass
Dimension 65[W] x 134[H] x 14.5[D] (mm)
99.9% of orders placed before 4pm EDT go out the same day. We ship USPS and UPS. Everything we sell has a free shipping option available other than accessories under $50 and international shipping for the few products we sell outside the US.
For items under $300, free shipping takes 2-4 business days. For items over $300, free priority shipping takes 1-3 business days. For items over $1000, we pretty much always will get it to you within business 2 days. Signature is required upon delivery. We also offer a variety of expedited shipping options.
Tracking info is provided via email as soon as we ship.
For more info on our policies, including returns and many other FAQs, head here: https://bloomaudio.com/apps/help-center