Questyle CMA800i: DAC/Headphone Amplifier
Questyle Audio is known for state of the art high fidelity audio equipment with best in class design. They manufacture high-resolution music player for portable and car use, superior audio equipment for studio monitoring and top-tier players, and wireless audio system for home and customised installation. With valuing both sound aesthetics and technology, they are simply devoted to the new generation high-res audio design. The Questyle CMA800i is yet another masterpiece delivered by the team.
Outstanding Headphone AMP section
The amplifier section the Questyle CMA800i follows Questyle’s patented "Current Mode Amplification" design used in their flagship headphone amplifier, the Questyle Audio CMA800R. Also, ultra-low 0.00026% distortion, ultra-wide bandwidth, up to 850kHz (+0, -3dB), and Super-current pure Class A architecture makes the CMA800i best-in-class among several all-in-one DAC/amplifier models.
True DSD and IIR Digital Filer
To provide True DSD, the way it was meant to be heard, the Questyle Audio CMA800i accepts the DSD bit-stream directly from your computer, bypassing your computer’s audio processing and digital volume control as well as the Questyle Audio CMA800i’s digital filters. It doesn’t require expensive difficult to install proprietary connectors. Also, it comes with more advanced IIR digital filter, which eliminates the pre-ring from the impulse wave producing a more natural sound.
A Separate Pre-Amplifier Section
Unlike many manufacturers, who use the headphone amplifier circuit loop to support the pre-amplifier output to reduce costs, Questyle features Pre-Amplifier output, another unique feature of the Questyle Audio CMA800i. It comes designed with a totally independent pre-amplifier to achieve the best possible sound performance. To make usage more convenient, an analogue volume control circuit is employed.
Headphone Amp section (External Format) | |
Gain | 11.8dB (3.9times) |
Max Output Power(Po) | 180mW(7.5Vrms)@300Ω;1W@32Ω |
THD+N | 0.00026%@1kHz,Po=100mW,300Ω |
0.00050%@1kHz,Po=50mW,32Ω | |
SNR | 118 dB |
Frequency | DC-200kHz(+0,-0.5 dB);DC-850kHz(+0,-3 dB) |
Sensitivity | 2.2Vrms |
Input | Internal DAC output, or External RCA input,switchable |
Output | Dual 6.35mm Standard Stereo Jacks |
DAC and Pre-Amp section | |
Input | SPDIF input and output, USB Type B input |
Signal | SPDIF input and output: Standard PCM 44.1-192K/16-24bit |
USB: PCM 44.1-192K/16-24bit and DSD Source Code following standard SACD format | |
PC OS to match USB input | Win XP,Vista,Win7,Win8 and MAC OS |
Digital Filter | PCM Mode:Switchable IIR(MP) and FIR (LP) |
Ture DSD Mode: No filter | |
USB supported Kernal stream | WASAPI,ASIO,KS |
Analog Output | Balanced (XLR) and unbalanced (RCA) |
Max output amplitude XLR | 8.6Vrms;RCA:4.3Vrms |
THD+N | < 0.005% for both XLR and RCA |
SNR | >107dB for both XLR and RCA |
Whole device | |
Dimension | 330*300*55 mm |