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Hifi Bluetooth DAC Board Lossless Bluetooth Receiver (QHD525 with BT5.1 QCC5125 + ESS9038Q2M)
Tips:
It is recommended to turn off the sound effects of your mobile phone or computer player, because turning on the sound effects will cause loss of sound quality. In serious cases, it will also cause sound distortion.
The higher the above parameter value, the better the sound quality. The difference between the QHD series and the SQ series is the DAC decoding chip model. The QHD series uses the flagship ESS9038Q2M/ES9038Q2M chip, and the SQ series uses the sub-flagship ESS9018K2M chip. The Bluetooth model is the corresponding model. Other motherboard components of these two series are exactly the same.
① DC5-32V wide voltage input: 5V over 2A and 12V above 1A. AC power can not be input.
② AUX analog audio input: red wire connects to the right channel, black wire is the common ground wire, and white wire connects to the left channel.
③ Analog audio output: red wire connects to the right channel, black wire is the common ground wire, and white wire connects to the left channel.
④ The external Bluetooth antenna interface adopts a snap-on installation for easy disassembly and assembly. When you are using a metal casing, an external antenna must be added, otherwise it will seriously affect the signal reception.
⑤ Bluetooth indicator light 1: Alternating flashes for Bluetooth search unconnected state.
⑥ Bluetooth indicator light 2: Alternating flashes for Bluetooth search unconnected state. The indicator light will stay on when Bluetooth is connected.
Switching Method between Bluetooth and AUX:
Default is AUX mode, and Bluetooth is prioritized (that is, when Bluetooth is not connected, the board is in AUX mode. After Bluetooth is connected, the board automatically switches to Bluetooth mode. When the Bluetooth board is not powered, AUX mode is available. This switch is a lossless switch of relays, so there is no need to worry about the sound quality of AUX input being deteriorated).
Specifications:
- Effective communication distance: 20m
- Interface type: PH2.0
- Antenna type: external
- Applicable scenarios: home appliance modification DIY
- Transmission rate: 990Kbps
Package Included:
- 1 x Decoder board
- 2 x Audio cables
- 1 x Power cable
Packaging Details:
- Weight: 0.2kg
Note:
- Antenna is not included. It is recommended to use a 2.4G external Bluetooth antenna.
- The Bluetooth board needs to be powered by an independent power supply. It can not share power with the amplifier, as this will cause common ground noise.
