Questyle CMA800i DAC with Headphone Amplifier

Description:

Key features

• 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 form