Questyle Audio is dedicated to the design and manufacture of high resolution music player for portable and car use, and State of the Art audio equipment for studio monitoring and top-tier players, as well as wireless audio for home and customized installation. Questyle Audio products range covers: High Resolution Portable Music Players (DAPs), Current Mode Headphone Amplifiers, True DSD DACs, High Resolution Multi-channel Wireless Audio Systems, etc. Questyle Audio is devoted to the new generation High-res audio design with valuing both sound aesthetics and technology.

The Questyle Audio family consists of Questyle Audio Technology Co. Ltd, China, and Questyle North America Inc., USA. Questyle has a great engineering team and a talented sales team located in China and USA, and all products are assembled in our strategy partner manufacturing center—Foxconn. With many globally patented technologies and the philosophy of no compromise on sound control, industrial design and techniques, Questyle ensures a precise and authentic listening experience and a unique brand value.

A continuing search for new avenues to achieve higher levels of perfection in high-end audio reproduction is the “Style” of our “Quest”

Design Philosophy

Science driven State of the Art Innovative Engineering coupled with Simplicity of Form and Operation are our underlying design principles. At Questyle Audio we use our Engineering Expertise to simplify the user experience and eliminate all technical issues, so as to free the consumer from boring setup problems, by providing products with simple operation that also allow them to enjoy the best sound available. This is the starting point of our design philosophy.

Core Technologies

Hi-end Analog Amplifier Technology

Current Mode Amplification Technology

(Global PCT No.PCT/CN2014/075775)

Questyle Audio moves beyond the traditional voltage mode format design, employed in outdated modern amplifiers, reinventing the audio amplifier, by designing an innovative “Current Mode” amplification technology employed in all of our headphone amplifiers. The Questyle Audio CMA800R was the world’s first “Current Mode” headphone amplifier, exhibiting an ultra-low distortion level of less than 0.00038%. We have since, extended this technology to all of our headphone amplifier products including the QP1 and QP1R Portable Music Players (DAPs).

Digital Audio Technology

True DSD

(China Intellectual Property Office Patent No.201520211945.X)

“True is the best.” Implementing proprietary driver software, Questyle Audio is able to send DSD source code directly from your computer over USB via bit-stream (as DSD was designed to be processed), bypassing the digital filters and digital volume control, to provide True DSD in the way it was meant to be heard, without converting it to PCM (thereby combining the deficits of both formats), or breaking up the bit-stream and compressing it into PCM packets (DoP – which makes extreme demands for extra processing at both the computer and DAC end as it must be compressed and decompressed in real time, as well as a 33% increase in bandwidth demand from your cabling and USB interfaces, not to mention the need to buffer a significant portion of the file in order to reassemble the bit-stream prior to sending it to the DAC, creating noticeable latency), or resorting to expensive and complicated proprietary computer interfaces.

IIR Digital Filter

(China Intellectual Property Office Patent No.201520212711.5)

Questyle Audio employs the most advanced IIR digital filter, which completely eliminates the pre-ring from the impulse wave providing the most natural sound possible.

3X Clock USB Asynchronous Transmission

(China Intellectual Property Office Patent No.201520211445.4)

3 correspondence level clocks, individually controlling multiples of 44.1kHz, multiples of 48kHz and USB signal transmission, are dedicated for USB asynchronous transmission, reducing Jitter to undetectable levels.

Wireless Audio Technology

5GHz Hi-end Wireless Audio Technology

(Global PCT No.201420119512.5)

Questyle Audio holds a PCT patent for its innovatively designed 5GHz Wireless Audio System, sending audio signal in the 5.2GHz/5.8GHz frequency bands, achieving a much more stable transmission, and providing true Hi-end Audio sound quality.


Enterprise Culture

Respect and integrity, is the basic principle between Questyle Audio employer and employee.  Passion and dedication is our staff’s core characteristic, “Quest for Best” is our mantra. Continuous improvement of Technology and Acoustic Aesthetics is our Quest.

Sound and Quality Control

In our development stage, we use precise AP test equipment to measure and analyze sound, based on a technical index of dozens of specifications. On top of that, we conduct a host of special measurements to detect what that machine can’t. While specifications need to be top notch, sound performance is first and foremost. Before any new product is officially released, we invite select professional audiophiles to listen the sound, and verify what we have already determined.

Many HiFi devices are “handmade”, as the market is not large, but we know that if we make our products in a modern factory, which is compatible with ISO system standards, although the unit cost will be much higher, we will achieve superior results. We believe, if sound is to come first, build quality is a basic requirement. For this reason, we selected a professional factory with professional equipment, standard work flow and strict procedure, to control sound quality, and as well to ensure cosmetic aesthetic.

Despite this, the final "age" testing is done in our laboratory; we leave this last section under our personal control. Before being shipped out, each product is tested with an index of over 30 items, and a key-factor test report is included in final packaging for consumer reference. Another copy of this test report is kept as our record.

Strategy Partners

Regarding technical support, we cooperate with worldwide famous partners.

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