XiangSheng Finished DAC-03 Tube Audio Preamplifier PCM1794A QCC5125 Bluetooth Xmos SA9023 USB Card Remote Control Decoder

Version 1：
PCM1794A decoding
CS8416 receiving
OP2604AU operational amplifier * 3 pieces
CS3310 electronic volume
TPA6120 ear amplifier
American QCC5125 Bluetooth 5.1
SA9023 USB daughter card.

Version 2：Upgrade the xmos USB sub-card

Product Details

1, With 4 digital signal input switch: USB, coaxial, optical fiber, Bluetooth.

2, With two stereo RCA unbalanced output: ordinary output, vacuum tube buffer output. Convenient collocation of gallbladder machine or stone machine, obtain different results.

3, The main drawing board adopts double panel design, black high-grade solder resistance.

4, Digital reception and digital to analog conversion using the well-known Cirrus company CS8416, and TI company PCM1794A.

5, The output part of the tube adopts the middle frequency 6N3 vacuum tube, the sound is soft, the high voltage and the filament are DC stabilized power supply.

6, The resistance and capacitor using high quality discrete temperature components assembly, so that the sound quality can be guaranteed: Dale Darny resistor, solar sound resistor, Panasonic resistor, WIMA polypropylene capacitor, SuLun capacitor, CBB ultra-small polypropylene metallified capacitor, monolone capacitor, etc., do not use polyester, porcelain and other ordinary original. So as to ensure the sound color is pure, high analytical power, sound dyeing small, open sound field and other advantages.

7, The use of superior performance of R-type transformer power supply (generally only high-grade models),although the cost is significantly higher than the ring, square transformer, but high efficiency, small magnetic leakage.

8, Digital part and analog part are independent rectifier filter voltage supply, reduce interference.

9. Each function of the machine is controlled by MCU, and the channel state and volume of the last shutdown are remembered.

10, Electronic volume using CS3310 chip, electronic volume, good synchronization, long life, no noise.

11. TPA6120 chip is used for the ear amplifier, which is a firing level ear amplifier chip.

Product Parameters

Dimensions: 260mm wide, 167mm deep, 55mm high (excluding knob, pin, connector size)

Frequency response: 20Hz-30KHz

SNR:
Ordinary port output: 110dB
Valve port output: 90dB

Harmonic distortion:
Normal port output: <0.001%
Valve port output: <0.1%

Support 16bit, 20bit, 24bit digital streaming

Supports the following sampling frequencies: 44.1kHz, 48kHz, 88.2kHz, 96kHz, 192 kHz

Output level: 2000mV

Dynamic range: 120dB

Input impedance: digital 75 ohms

Line output impedance: 600 ohms

Input voltage: 110V, 220V/50Hz

Net weight: about 1.75kg

Packing list

1× DAC-03 Tube Audio Preamplifier

Without Power Cable