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Three years ago, we sparked upon a plan to design a high-resolution portable music player (DAP). For our first DAP, we set ourselves an almost impossible goal. That was, to make it possible, for true music lovers and professional audiophiles, to enjoy the same Hi-Fi listening experience achieved in state of the art home based systems, in a portable body. This means, the circuit design, the device, the system architecture, as well as the industrial design and processes, must be reconsidered all. We looked forward to it, as not just portable Hi-Fi equipment, but as the future of Hi-Fi itself.

An impressive arc body with a twin steering wheel design, supporting DSD128 & 24Bit /192kHz PCM files, pure Class A, discrete transistors and components, headphone amplifier, incorporating Questyle Audio’s patented “Current Mode Amplification” to ensure a warm and powerful sound, makes the QP1R masterpiece of portable DAPs.

 

 

Style and Technology Are Merged into Pure Hi-Fi

The Arc body of the Questyle QP1R is so elegant. A machined aluminum body is merged with a Gorilla glass front and back, reducing weight while increasing durability and providing a better environment for EMI sensitive circuits. The innovative continuous whole surface design, the hollow guard, the curved glass machining, the assembly of superimposed surfaces of glass and aluminum composite materials, the CNC machining and assembly to a severe test of specification, all of which are combined to make a beautiful and stylish enclosure.

 

 

Support Kinds of Audio Files

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The Questyle Audio QP1R supports ALAC, APE, FLAC, AIFF, WAV, WMA Lossless up to 24bit/192kHz and high-Res audio files such as DSD128 and DSD64 playback, reveal far more of the original sound performance of music than that of Mp3 players or smart mobile phones. As a Hi-End portable DAP, it needs to do with the audio files which are as high level as the studio recording at very low power consumption. After times of optimizations for system operation, player programming, and digital audio circuit, Questyle Audio ultimately achieved a solution.

 

 

Sound Performance Is Our Priority

The Questyle Audio QP1R follows the same 3X Clock structure design of the Questyle Audio CAS192D. The 3X Clock USB asynchronous transmission guarantees a more stable and precise operation. The three-clock integrated circuit with FIFO asynchronous structure and three voltage-stabilized power stages ensure accurate sound. With Cirrus Logic’s flagship DAC chips (CS4398) , the DAP is able to capture more details hidden within music.

 

 

"Current Mode Amplification" Technology-A Legend of Questyle

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In this era of fierce competition between High-Res DAPs and Hi-End smart phones, taking Questyle Audio's flagship headphone amp, the CMA800R as a reference, "Current Mode Amplification" technology is merged into a High-Res DAP, allowing QP1R to drive virtually any headphone. Hi-End audio amplifiers are traditionally designed using all discrete components. Spared no effort or expense, this design is applied to the Questyle Audio QP1R, combined with Questyle’s “Current Mode” PCT patents and Class A architecture. Such a design with output impedance of less than 0.15 ohms makes it easy to drive whether 8ohm in ear monitors(K3003) or 300ohm in dynamic headphones(HD800).

 

 

Incredible Audition Process

By times of testing completed model of nearly 100 versions (swapping out every component to find the perfect match), after analyzing more than 500 pieces of data and 500 sonic tests and audition recorded by Audio Precision, the perfect QP1R was finally born.

 

 

The High-end Components-Pursue Ultra High Fidelity Sound

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Every Detail of the Design Comes Close to Your Heart-A Simple Interactive UI

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The helm style volume control and the machined alumnium hollowed-out protective crown inspired by a fine watch, against inadvertent volume change, and preventing accidental damage to headphone plugs while carried in a pocket or a case.

Another feature is the “Steering Wheel” control for menu navigation, allowing a quick track selection of the QP1R.

 

 

Satisfy Your Needs for Travel

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- Battery:3300mAh, battery life up to 10 hours

-A maximum storage capacity of 432GB means hundreds of albums in your pocket, and two swappable Micro SD cards take your whole music collection along with you.

-The Mobile universal Micro USB jack for charging anytime, anywhere, and charging while listening as well.

 

 

Shock Quietly

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The integrated alumnium structural design,from roughing and finishing surface machining to CNC composition, and to a complete QP1R body processing line, improved the quality of technological testing standards, finally assembled, tested, and delivered under the highest quality standards by Foxconn.

 

 

 

Specification

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QP1R: Reference Version

Patented "Current Mode Amplification" in headphone AMP, all discrete components, pure Class A circuit.

Support File: WAV, FLAC, ALAC, APE, AIFF, ADPCM, LPCM, MP3, WMA, WMA Lossless, OGG, AAC, DFF, DSF

Sample Rate:
PCM: 44.1kHz-192kHz (16bit/24bit)
DSD Native:
DSD64(1bit 2.8MHz)
DSD128(1bit 5.6MHz)

DAC:Cirrus Logic CS4398

Output:
3.5mm headphone output
3.5mm line out & optical output

Frequency Response:
20Hz-20 kHz(±0.1dB)

THD+N:
QP1R THD+N = 0.0006%

Output Impedance:
QP1R: 0.15Ω

Headphone AMP Output Power:
Gain=High
Max Output Amplitude: Vout=1.9V rms
Output Power:
Pout=40mW @32Ω
Pout=12mW @300Ω

Gain=Middle
Max Output Amplitude: Vout=1V rms
Output Power:
Pout=31mW @32Ω
Pout=3.5mW @300Ω

Gain=Low
Max Output Amplitude:
Vout=0.53V rms@32Ω
Vout=0.51Vrms@16Ω
Output Power:
Pout=8.8mW @32Ω
Pout=16.3mW @16Ω

Memory:
Internal: 32GB
External: supports micro SD card 2*200GB

Battery:
3300mAh Lion, 8-10 hours

Charge Current:
Via PC USB connection@ 450mA

Charging Time:
8 hours via charger @2A

Charging Time: 3 hours

Body:
CNC cutting aluminum case, available in Space Grey / Gold

Manufactured by Foxconn

 

QP1R Headphone Gain Setting

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The headphone list above is in no particular order.

The "Gain Recommendation" in the form is recommended by Questyle Audio after testing headphones above, just for your information.

The "Gain Recommendation" in the form is the recommened Gain Setting ("High", "Middle" or "Low") for Questyle Audio QP1R music player ,when matching with different headphones. With the recommeded setting, the headphones in the list has excellent sound performance.

This form will be updated periodically. More headphone brand and model will be added to the form.

Last update time: 04/05/2016

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