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Questyle SHB2 Super Source

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The Questyle SHB2 Super Source is a plug-and-play dock for the QP2R music player. It's designed for incredible ease-of-use and low resonance, using special silicone, pure aluminum, and stable feet.


The digitalization of lossless music grows ever more popular. Questyle is already on this road and at the leading edge since the Portable Lossless Audio Player QP1R was released in 2015.

The Super Source System (Portable Lossless Audio Player QP2R+Super Hub SHB2) released in 2018 is designed with a whole new concept, resulting in Questyle taking a huge leap towards defining the future. People will enjoy high-quality music in a simple and easy way by virtue of Questyle’s state-of-the-art technologies.

man and woman wearing questyle products

Plug and Play

The more complicated the world is, the more concise we are. Simply dock the QP2R onto SHB2, then beautiful music will flow around you.

Pure and Focused

A high-end audio system basically features purity and clarity in playing music. The Lossless Audio Player of the Super Source System is supplied with battery power which is far purer than the power supply of your PC or a server.

High quality always results from being focused upon. The Linux operating system, specially optimized for playing music, allows the whole system to focus on high-end audio playback.

redhat Linux
iF Design Award 2018


The design style of Super Source System originates from Questyle’s iF Design Award winner, which is impressive for the unbroken lines flowing with a smooth-faced design around the perimeter.

Resonance Control

Mechanical vibration will affect audio signal processing and sound listening. But the Super Source System will avoid resonance by its special structure and material.

The player docking of Super Hub SHB2 is made of special silicone and pure aluminum, plus the stable feet, helping to reduce resonance to a lowest level.

Questyle SHB2 Design Details


Questyle SHB2 circuit board

Current Mode Amplification

Questyle's patented Current Mode Amplification technology is set apart from other technologies adopted in traditional amplifiers. It will provide users with an experience of being there and listening to the original sound.

Current Mode Amplification

True Direct Stream Digital

CMA Twelve is designed with Questyle patented True DSD technology and AKM AK4490 DAC chip. It processes DSD signals without any PCM converting and provides True DSD.

Direct Stream Digital

PCM384 | DSD256 | 32Bit


Current Mode Amplification modules CC630 & CA630

Questyle SHB2 capactiors

Nichicon FW capacitors

Questyle SHB2 transformer

Customized transformer from Plitron

Build A Hi-Fi Audio System

The pre-amplifier of the Super Hub SHB2 has excellent performance because of the customized Current Mode Amplification modules CC630 and CA630. SHB2’s analog output can be set to Fixed or Adjustable. With a full range of input and output interfaces, the Super Source System is user-friendly to match it with Hi-Fi amplifiers or active speakers. So, it’s very easy for you to build a lossless audio system.

Questyle SHB2 back panel
Questyle SHB2 output controls

Digital Monitor in Studios

The Super Source System supports professional interfaces of AES and XLR that are used in recording studios. It is user switchable between Studio and Standard mode. In the Studio mode, the power level will change from 14dBu up to 20dBu instantly, matching it with studio-level professional equipment. In addition, when you switch the Super Source System to Memory mode, it will download the recording files automatically and sync to QP2R, which makes it convenient for you to take the recordings along and listen to them at any time.

Bringing Out The Sound Quality of Streaming

The Super Source System has a full range of input and output interfaces, supporting digital signals, balanced and unbalanced analog outputs. When streaming Tidal or Spotify, your only need is to connect the Super Source System to your PC or a server via a USB cable, switch the system to the DAC mode, (switching it to work as a DAC ) , then you will get better sound quality from your PC or the server.

Tidal | Spotify | Roon

Standard and Master Versions

There are two versions of Super Hub SHB2, the first is SHB2 (standard version), the other being SHB2 Master. The SHB2 Master has a “MASTER” laser marking, and it features the ROGERS Ceramic PCB and selected components to ensure the ultimate performance on sound quality and specifications.

The Finish of both the SHB2 and SHB2 Master are both available in your choice of Black and Golden.


Headphone Guru Review
Headphone Guru

by Gary Alan Barker
Nov. 2018

Manuals and Guides
(Size: 882.6 KB)
USB Driver Installation and JRiver/Foobar Setup for Questyle CMA Twelve, CMA 400i, CMA 600i DACs, and SHB2 Super Hub


Black or Golden
Chassis Material
Special CNC tooled Aluminum
12.99" W x 8.66" D x 3.15" H (330mm x 220mm x 80mm)
116.4oz (3.3kg)
100-120V or 220-230V (switchable)
Power Consumption
Supported OS
Win XP, Vista, Win7, Win8, Win10, and Mac OS

Digital Sources

USB Type B Input
Supports 44.1kHz-384kHz/16Bit-32-Bit PCM and DSD Native DSD64, DSD128, DSD256, as well as DSD64, DSD128, DSD256 of DoP format
Digital Input/Output
SPDIF input and output, Optical input, AES/EBU input
Suports 44.1kHz-384kHz/16Bit-32Bit PCM, and DSD Native DSD64, DSD128
RCA Analog Signal imput
RCA x 1 Pair
Digital Source + 5 GHz Wireless Output
with USB, S/PDIF, Optical or Analog signal input, or in the HUB mode, transmission via 5GHz Wireless mode to receiving device

Dac & Preamp Output

Preamp & DAC
Balanced XLR x1 pair, unbalanced RCA x 1 pair
STANDARD 14dBu: XLR: 4.343V RCA: 2.160V
STUDIO 20dBu: XLR: 8.121V RCA: 4.038V
[email protected] 20dBu: XLR: minimum at 0.00055%
minimum at 0.00065%
XLR >114dB
RCA >102dB (non-weighting)
Frequency Response
DC-20kHz (+0, -0.3dB) @0dBFS, 24Bit, 48kHz

Master Version

The SHB2 Master has a “MASTER” laser marking and features the ROGERS Ceramic PCB and selected components to ensure the ultimate performance on sound quality and specifications.

Note: FIX/ADJ = Fixed Output Mode or Adjustable Output Mode of the Preamp

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