Questyle CMA800R HEADPHONE AMP

QUESTYLE CMA800R HEADPHONE AMP! Certified OPEN-BOX B-STOCK Units Original Box with Accessories OPEN-BOX UNITS (May contain surface marks...) RETAIL PRICE $1,999.00
Current-mode audio amplifiers affect the speed and bandwidth of the transistor-level capacitance between the low impedance nodes, not only completely eliminate the transient intermodulation distortion (TIMD), but can easily attain ultra-high bandwidth (full power bandwidth of 500kHz ) and ultra-low distortion (lower than 0.0002% , challenging the physical limits of audio testing).

The CMA800R Current Mode Amplification section is of a fully discrete design and all transistors work in pure Class A.  The Questyle Audio CMA800R headphone amplifier Patented Current Mode Amplification technology brings CMA800R excellent performance.  0.00038% ultra-low distortion, challenges the physical limit of audio testing. 
Ultra-wide bandwidth of 650kHz, is 32 times beyond human hearing.
SPECIFICATIONS:
Audio Performance Gain: 15.5dB 
Sensitivity: 1.2Vrms
Input Impedance: 47kΩ
SNR: 114dB in stereo mode, 118dB in mono mode 
THD+N: 0.00038% @1kHz, 300Ω ; 0.00026% @1kHz, 300Ω  Max Output Power: 
180mW (7.5Vrms) @300Ω, stereo mode 
710mW (15Vrms) @300Ω, mono mode
Inputs Stereo XLR x1pr
stereo RCA x1pr
XLR Mono x1 Outputs 6.35mm Jack x2
RCA Pre-amp x1
3-PIN XLR x1
Finish: Silver 
Chassis Material: CNC machining aluminum 
Dimension: 12.99"(330mm)[W]×7.87” (200mm)[D]×1.38"(55mm)[H]
Weight: 111oz (3.15kg) 
Working State: Pure Class A 
Power Supply: 100-120V or 220-230V switchable 
Power Consumption: 13W

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