- Sophisticated Craft
- Quality Control
- A World Class DAC Section
- IIR Digital Filter
- A World Class DAC Section
What is it?
CMA800i headphone amplifier section follows Questyle flagship headphone amp CMA800R current mode amplification patent design, most components used are same. Ultra low distortion as to 0.00026%, ultra wide bandwidth up to 850kHz (+0, -3dB), working in pure Class A status under Super-current, all these features enables CMA800i amplification be most outstanding among all the all-in-one models.
CMA800i DAC section, PCM version it adopts USB Asynchronous transmission 3X Clock structure design, support 192kHz/24bit both USB and SPDIF input/SPDIF output, more important is it support True DSD format digital to analog converting. Different from current DoP (DSD over PCM) format, CMA800i drive program will send DSD source code directly to DAC section for digital to analog converting, its hardware is specially designed with DSD channel to process DSD signal in its original format ,strictly comply with standard SACD format. Same as CMA800i, CMA800i adopts Wolfson WM8741 DAC chipset with 4 levels of digital filters and power regulation. In PCM version it’s designed with IIR(MP) digital filters to eliminates pre-ring, while in True DSD version all digital filters are invalid. Pre-Amplifier output is one more specific feature for CMA800i. Many brands, when they design a all-in-one model, they use the headphone amplifier circuit loop to support pre-amplifier function in the meanwhile, on the sake of cost. But CMA800i, only care how to achieve best sound performance, is designed with totally independent pre-amplifier, even the power supplier supporting pre-amplifier circuit is total Check List 02 03 independent located. Volume control adopts a ALPS27 potentiometer working in pure analog format, supporting remote control, as well more suit for supporting active speakers.
A good sound performance require Hi-end components to support. CMA800i is assembled with suitable Hi-end components like DALE military resistors, WIMA capacitors, Nichicon FG capacitors, customized Plitron Toroidal transformer, Neutrik connectors…etc. Aluminum chassis is specially CNC tooled into “mutual-bit” structure, 10mm thickness cover, reduce the CMA800i natural resonance to lowest level. Even the feet is pure aluminum material, tooled by CNC machine, it can be switched to 3-feet triangle structure or 4-feet quad structure as per user’s favorite.
How does it work?
The Questyle Audio CMA800i headphone amplifier follows Questyle’s patented “Current Mode Amplification” design used in the flagship headphone amplifier CMA800R, and it can easily drive headphones of high/low impedance. The ultra-low distortion level at 0.00028%, ultra-wide bandwidth up to 850kHz (+0, -3dB), and pure Class A working state, plus clean and strong power supply, enable the CMA800i’s amplification to be unparalleled among all-in-one DAC/AMP models.
With the True DSD technology, CMA800i ensures that the signal processing is done under the original DSD format, strictly following the standard processing of SACD playback. It supports 192KHz/24Bit PCM input and can precisely dig out every single detail in a track.
Wolfson DAC chip WM8741 brings CMA800i beautiful sound. IIR/FIR two switchable digital filters completely eliminate the pre-ring from the impulse wave, producing a more natural sound. Independent power supply for DAC section ensures the impressive performance.
CMA800i’s chassis is made of aviation aluminum and its cover is only 10mm in thickness. The specially tooled “mutual-bit” structure makes the chassis strong and stable. Each side of CMA800i has balanced weight since its internal weight is evenly planned. CMA800i’s feet are made of pure aluminum, helping to avoid resonance. Even every screw is precisely CNC-tooled into “CD texture”, giving CMA800i another unique feature.
What’s in box?
- Power Cord
- Remote Control
- CMA800i User Manual
- Test Report
- User Manual of Remote Control