Basic Info.
Product Description
This machine is a decoder, economical remote-control decoder and ear amplifier, with Bluetooth and USB as options.
DAC-03B decoder uses PCM1794A decoding, CS8416 receive ,OP2604AU op amp * 3 pieces ,CS3310 electronic volume ,TPA6120 ear amplifier , Qualcomm QCC5125 Bluetooth version 5.1 ,SA9023 daughter card or TE7022L daughter card.
Product feature
1.This machine has 4 digital signal input switching: USB, coaxial, optical fiber, Bluetooth.
2.This machine has 2 stereo RCA unbalanced outputs: ordinary output, tube buffer output. It is convenient to match with a gallbladder machine or stone machine to obtain different effects.
3.The main enlargement board adopts double-sided design, black high-grade solder mask.
4.Digital reception and digital-to-analog conversion using the famous CIRRUS CS8416 and TI's PCM1794A.
5.The output part of the electron tube of this machine adopts medium frequency warm 6N3 vacuum tube, the sound is soft, and the high voltage and filament are DC stabilized power supply.
6.The resistance and capacitor of this machine are assembled with high-quality discrete audiophile components, so as to ensure the advantages of pure timbre, high resolution, small sound coloration and wide sound field.
7.The use of superior performance R transformer power supply (generally only high-end models are used), although the cost is significantly higher than ring and square transformers, but high efficiency, small magnetic leakage.
8. Digital part and analog part independent rectification filter stabilized power supply to reduce interference.
9. Each function of this machine adopts MCU control, and remembers the channel status and volume level when the last shutdown.
10.The electronic volume adopts CS3310 chip, audiophile-grade electronic volume, good synchronization, long life, no noise.
11. The ear amplifier adopts TPA6120 chip, which is an audiophile-grade ear amplifier chip.
Parameter
| Frequency response: | 20Hz-30KHz |
| Signal-to-noise ratio | normal port output: 110dB Tube port output: 90dB |
| Harmonic distortion: normal port output | <0.001% Tube port output: <0.1% |
| Support | 16-bit, 20-bit, and 24-bit digital streaming |
| The following sampling frequencies are supported | 44.1kHz, 48kHz, 88.2kHz, 96kHz, 192KHz |
| Output level | 2000mV |
| Dynamic range: | 120dB |
| Input impedance: | digital 75 ohms |
| Line output impedance | 600 ohms |
| Input voltage | 110V, 220V/50Hz |
| Volume(W*D*H) | 260*167*55MM |
| Net weight | 1.75Kg |
Ancillary equipment
The decoder can connect the following devices:
1. The USB input of the decoder can be connected to the USB output of the computer and the 0TG output of some mobile phones.
2. The coaxial and optical fiber input of the decoder can be connected to the coaxial and optical fiber output of DVD, CD player, digital broadcast, set-top box and TV.
3. The Bluetooth of the decoder can be connected to mobile phones, computers with Bluetooth, etc.
Game
Audio and video player
Computer
DVD
television set
Digital TV set-top box
4. Master the correct switching sequence, which can avoid impact sound. Boot sequence: audio source--decoder--pre-stage--power amplifier. The shutdown order is reversed.
5. The balanced output is connected to the power amplifier or ear amplifier with balanced input. Only amplifiers or ear amplifiers with unbalanced input can be connected with XL to RCA lines, but only if the amplifier can pass a 4.5V high-level signal without clipping.
6. The output of this machine is connected to the integrated power amplifier, which cannot directly promote the pure post-stage, and the pure post-stage should be added to the pre-amplifier.
