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Specifications

Patented fully discrete/full-balanced/Current Mode AMP 
Pure Class A BIAS control system

WAV, FLAC, WMA, MP3, OGG,APE(Normal/High/Fast), 
AAC, ALAC,  AIFF, DFF, DSF

PCM : 32kHz - 384kHz (16/24/32Bit) 
DSD Native: DSD64(1Bit 2.8MHz), 
DSD128(1Bit 5.6MHz), DSD256(1Bit 11.2MHz)

Sample Rate 

Audio Formats Supported

Outputs

Headphone out(3.5mm)/Optical out(3.5mm)
/Balanced out(2.5mm)

DAC

AKM AK4490 DAC chip

Output Level

Unbalanced 1.8 Vrms / Balanced 3.6 Vrms

Output Power

Unbalanced  RL=32Ω

Pout=38mW; RL=300Ω

 

Pout=9mW

Balanced  RL=32Ω

Pout=70mW; RL=300Ω

 Pout=38mW

Frequency Response

±0.1dB ( 20Hz-20kHz) 

S/N

100dB @ 1kHz, Unbalanced / 102dB @ 1kHz, Balanced

THD+N

0.0006% @ 1kHz, Unbalanced / 0.0005% @ 1kHz, Balanced

Output Impedance

0.1Ω

Charging & Data Transfer TYPE-C , 5V / 2A(PC & MAC)
PC OS Requirements

Windows XP / Windows 7&8(32/64bit) / 
Mac OS X 10.7 or later

Memory

Internal: 64GB;  External: micro SD card (Max. 200GB) x 1

Battery

3,100mAh 3.7V Li-Polymer battery, 10 hours of battery life

Display

IPS 2.4 inch (Sharp LCD)

Operating System 

Linux

Body Material 

CNC machining aluminum, available in Gold/Space Gray

Dimension

65[W] x 134[H] x 14.5[D] (mm)

Summary of Contents for QP2R

Page 1: ...www questyleaudio com...

Page 2: ...Firmware Connect QP2R to Computer Transfer Music Files Play Music Files How to Use QP2R Native Playback of Music Files Main Menu Description Icons in Status Bar Operation Instructions Settings QP2R U...

Page 3: ...rted In the Box QP2R Cloth bag QP2R Quick Start Guide USB type C cable Optical cable connector Silicone disc for the steering wheel Silicone patch for the OK button 1pc 1pc 1pc 1pc 1pc 1pc 1pc Optical...

Page 4: ...song to Favorites Playlists or to Loop Delete it Back button click it to move to the previous menu Press and hold it to go back to the main menu Steering wheel scroll the wheel to move up down left o...

Page 5: ...ot it is used to insert in a micro SD card Max 200G USB type C port it is used to connect QP2R to your computer or to charge QP2R battery Please use the included USB type C cable BIAS indicator it sho...

Page 6: ...the included USB type C cable and charge QP2R battery QP2R battery will be fully charged in about 4 hours via a 5V 2A adapter It will take a little longer to be fully charged via a computer QP2R can w...

Page 7: ...ter NOTE Insert your micro SD card very gently to avoid damage Do not remove the micro SD card while it is in use otherwise it may result in corrupting deleting data or failure even damage to the micr...

Page 8: ...ce named QP2R shown on your computer and you can transfer music files to the QP2R If the connection isn t shown on the QP2R screen please go to Settings USB Memory NOTE In the computer QP2R connection...

Page 9: ...tive Playback of Music Files Select language when you start QP2R for the first time then view the main menu items including Playing Category Playlists Browse files and Settings NOTE When you select Pl...

Page 10: ...wheel to view Playing Lyrics and Song information Click and you will see icons for Favorites Loop Add to Delete then you can add the playing song to Favorites or set the play mode or Delete it 2 Cate...

Page 11: ...oesn t have a cover the following picture will be shown as its cover instead You can also choose a cover for the Playing song from Cover selections See Fig 3 3 Playlists you can create new playlists a...

Page 12: ...the Docking analog out volume is not adjustable Docking output select it to set the Docking output to Digital or Analog USB select it to set QP2R to DAC or Memory mode When you set it to DAC QP2R wil...

Page 13: ...he volume control is inactive while the screen is off When you set the Volume lock Off the volume is adjustable while the screen is off This setting will not affect the adjustable volume while the scr...

Page 14: ...ct QP2R from the USB connection to your computer and then go back to the main menu QP2R USB DAC Feature What s new with Questyle QP2R High res Portable Audio Player is the feature of USB DAC namely QP...

Page 15: ...on later than the Mac OS 10 5 7 there is no need to install the USB DAC driver 4 Play music files in your computer It s better to play DSD files with a professional audio player 1 Operating System QP2...

Page 16: ...e will be directly output to USB without SRC on PC Files sampling at PCM384 or higher will be converted over SRC to that of lower sample rate PCM192kHz before they are played QP2R USB DAC supports DSD...

Page 17: ...dows OS We take Win7 64bit operating system for an example to show the Driver installation 1 Visit Questyle Audio website www questyleaudio com click Download Driver and select 2 Double click Setup ex...

Page 18: ...puter and the QP2R Driver installation is done 5 Installation on Win XP Vista is similar to the above Installation will take 3 or 5 minutes Click Finish to exit the installation Installation is comple...

Page 19: ...lect Questyle ASIO Driver ASIO under Audio Device 3 Select Settings under Audio Device and click Open Driver Control Panel under the ASIO then select Format 2Channels 24Bits select Buffer Settings Saf...

Page 20: ...4 Click DSP output format under Settings Make sure nothing on the left row is ticked To wit without any processing to DSD data ensuring original sound 19...

Page 21: ...5 Select Custom under Bitstreaming Yes DSD 6 Tick DSD and then click OK Save and exit The setup is completed 20...

Page 22: ...1 Install Foobar2000 2 Install Plugins 1 Install plugins according to the following steps highlighted from 1 to 8 Foobar Setup 21...

Page 23: ...22...

Page 24: ...install location to confirm that the three plugins highlighted in the following figure are installed successfully If so you will see two more options ASIO and SACD on the left of the interface as show...

Page 25: ...3 Install ASIO driver double click in the unzipped folder and then finish the installation according to the following steps highlighted from 1 to 3 24...

Page 26: ...Software Settings 1 Connect QP2R to your computer with the included USB cable and power it on Finish software settings according to the following steps highlighted from 1 to 8 Close and restart the s...

Page 27: ...and it is ready for playing music files For Mac OS X no special drivers are needed for later versions of Mac OS 10 5 7 Connect QP2R to your Mac via the included USB cable go to Preferences Sound on y...

Page 28: ...utput Power Unbalanced RL 32 Pout 38mW RL 300 Pout 9mW Balanced RL 32 Pout 70mW RL 300 Pout 38mW Frequency Response 0 1dB 20Hz 20kHz S N 100dB 1kHz Unbalanced 102dB 1kHz Balanced THD N 0 0006 1kHz Unb...

Page 29: ...ure to sunlight fire or overheated environment 2 If you need to replace the QP2R battery please contact your dealer Do not disassemble QP2R or replace the battery by yourself 3 If your QP2R fails to w...

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