Dac01bii Digital Audio Decoder with Earamp for Home Background Music System

This is a digital audio decoder with ear amp, all digital reception, decoding, I/V conversion filtering and other circuits according to the official technical support of CIRRUS, the output power is more than 2000mV on average, to ensure that the dynamics, details, and layers are not compressed

Product feature

1.This machine has 3 signal input switching: coaxial, optical fiber, USB.

2.This machine has 2 stereo RCA unbalanced outputs: convenient to match the power amplifier with different output levels.

3.The main enlargement board adopts double-sided design and is finely made.

4.This machine is also designed with headphone amplification output, this circuit refers to the classic line, using integrated op amp + discrete parts in the power to tube expansion form, the last stage of the ear amp current amplification using emitter follower, because push the headphone, the current is not like the power amplifier requires a lot of current, so the emitter resistance value does not have to be very small, which can increase the final stage feedback, reduce distortion, improve stability. And add the Joubel network to prevent high-frequency self-oscillation.
  In order to protect the headphones, output resistors and output capacitors are added, and in order to ensure the hearing sensation, the method of connecting small-capacity monolithic capacitors in parallel with large-capacity electrolysis is used to make the high-end, high-end and low-end signal coupling smooth.
  With a variety of headphones for actual audition, good driving force, clear layers, clear details, good dynamics, and the upgraded op amp will be improved, providing upgrade space for players to send burners.

This machine is a decoder, ear amp is an incidental function, and radio and TV ear amp line, if the requirements for ear amp are high, it is recommended to connect to independent ear amp after the decoder line output, so that each can play well.

 Parameter

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