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Questyle Audio CMA800R Desktop Headphone Amplifier

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Questyle Audio CMA800R Desktop Headphone Amplifier

  • Questyle Flagship Current Mode Amplifier

  • Fully Discrete, Current Mode Class A Output

  • Full Mono Balanced Function, bridge two CMA800R to achieve dual mono balanced output (One CMA800R for each channel)

  • Zero compromise approach on individual components - Highest grade Nichicon FG & WIMA capacitors, DALE resistors, Piltron Toroidal Transformer

  • 10mm Thick Aluminium Cover & bottom chassis

  • Pairs well from sensitive IEMs to Sennheiser's HD800

  • Each unit is tested & burned in for 72 hours to ensure highest level of quality control



Hear your music for the first time!

Questyle Audio’s outstanding "Current Mode Amplification" technology (subject to a PCT patent held by and the core technology designed and developed by, Questyle Audio CEO and founder Wang Fengshuo) provides the airiness and musicality of a tube amp while maintaining the speed and accuracy of transistors.

What is Current Mode Amplification?

In current mode amplification, the signal is amplified by modulating current instead of Voltage. It is widely applied in the high speed communication industry and the video processing industry, but it is Questyle Audio’s patented technology as applied to headphone amplifiers.

Why We Choose Current Mode Amplification?

Low distortion and wide bandwidth are the goals of all high performance amplifiers. Only with ultra wide bandwidth and high speed processing can an amplifier wonderfully process sudden pulse wave signals, and achieve realistic playback of music signal with speed and transparency.

To achieve this Questyle Audio abandoned the traditional voltage mode format and developed “Current Mode” amplification. When the component is working in Current mode, the amplifier Slew Rate (SR) achieves a linear increase as input signal amplitude increases, in direct proportion to the input signal amplitude. When receiving a high amplitude signal, a “Current Mode” amplifier’s SR is much faster than traditional Voltage mode devices, totally eliminating TIMD and ensuring a high amplitude signal with an extremely wide linear bandwidth and an almost distortion free realistic playback.

An Excellent Headphone Amplifier with Outstanding Performance Specifications


10mm Thick Aluminium Cover and Bottom Chassis

The Questyle Audio CMA800R’s aluminum chassis is produced by Foxconn using precise CNC tooling machines. The upper cover and bottom chassis “mutual bit” structural design, provides the Questyle Audio CMA800R with stable heat, excellent control of sympathetic vibration and excellent shielding from RFI/EMI radiation.

Mono Full Balanced Function

The Questyle Audio CMA800R is the world first headphone amplifier to offer Mono Full Balanced output. To create a proper balanced output, a stereo amp is required for each channel. Rather than compromise by using a transformer or resistors, Questyle takes advantage of this by allowing you to switch two Questyle Audio CMA800Rs into “Mono” mode, putting each one into a “Mono Full Balanced” configuration, effectively bridging them in a “Duel Mono” set up. The output power is four times that of a single Questyle Audio CMA800R, separately driving the left and right channels, with an ultra-low 0.00038% distortion, and unparalleled channel separation, able to drive high impedance and low sensitivity headphones deeply, improving resolution and dynamics. In this Dual Mono configuration, each channel’s power supply and amplification are independent, providing first class driving power, which is especially outstanding in driving difficult to drive headphones or headphones which lack in sound field or separation.

Technical Specifications

Additional Information

Colour Silver
Warranty 1 year (local)
Availability Preorder / Backorder (currently unavailable)
Product Type Amplifier (Headphone)
Style/Type Desktop
Features Line-in, Line-out
Input Connectivity RCA
Output Connectivity 6.35mm Stereo, RCA / Phono, XLR Balanced
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