JC-303 bluetooth 5.0 Receiving DAC Decoder Audio bluetooth Module Audio Decoding Board
JC-303 bluetooth 5.0 Receiving DAC Decoder Audio bluetooth Module Audio Decoding Board

JC-303 bluetooth 5.0 Receiving DAC Decoder Audio bluetooth Module Audio Decoding Board

availability:In stock

Shipping: Free Airmail
Ship From: China Warehouse
Estimated Delivery: Between


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Product Description

This module is suitable for retrofitting audio equipment such as amplifiers, amplifier boards DY, amplifier preamps and so on.
Transform traditional wired transmission into wireless Bluetooth transmission, the module uses Qualcom 5.0 high-fidelity
The Bluetooth chip and Bluetooth 5.0 high version ensure high data transmission so that the audio data is transmitted losslessly to the analog power amplifier. To achieve wireless HF quality. The module supports 16bit / 48khz non-destructive reception, and the sound quality level reaches CD level. Is a truly lossless Bluetooth receiver module. This module receives Bluetooth, and the pcm5102a decoder core outputs standard single-ended analog audio signals. The audio signal can be directly added to the pre-stage or post-stage analog power amplifier without adding a DAC decoder. In order to facilitate the modification of DY friends, the module has a AUX input for external linear audio. The AUX and Bluetooth are switched by the original NEC high-precision relay. The AUX input is directly switched by the relay without any chip processing. Ensure the lossless output of AUX audio to the amplifier.
1. DC power input interface, GND is the negative pole of the power supply, +12 is the positive pole of the power supply. Wide voltage: 6-36V
2. AUX audio interface, LINE_INR right channel input, GND common ground line LINE_INL left channel input
3. Audio output interface, ROUT right channel output, GND common ground line OUT left channel output
4. Audio switching relay, imported from NEC, guarantees sound quality transmission and working life.
5. Bluetooth antenna buckle interface, used to install an external 2.4g antenna to enhance Bluetooth signal reception, open and unobstructed
6. Up to 20 meters or more, add an external antenna to support through-wall reception. If the module is installed in a metal chassis,
7. Install an external antenna (a 2.4G antenna like a router) to ensure complete signal reception. Outside plastic
8. No external antenna is needed on the side of the case or wooden case.
9. Bluetooth working indicator 1
10. Bluetooth working indicator 
If after the modification, the Bluetooth amplifier has a slight noise or interference noise when working, add a low-power power supply above 6-36V50MA and separate the Bluetooth module to solve the noise problem. Shared power with equipment is prone to common ground interference and noise floor
Package Included:
1 x  bluetooth 5.0 Receiving DAC Decoder
What does the AUX input with relay do?
Answer: This is to help solve the problem of adding a Bluetooth receiver board to an amplifier or active speaker with only one audio input.
For example, a computer active speaker has only one input function, and you cannot plug in an external sound source such as a computer sound card or a CD player when connected to a Bluetooth receiver board. The audio input needs to be unplugged, which is very inconvenient to use. If you have an AUX input, you can use the Bluetooth AUX interface to connect computer sound cards or CD players and other external sound sources. The Bluetooth receiver board output interface is connected to the active speaker input terminal, so you do n’t need to unplug the cable. AUX mode. After the Bluetooth connection, it will automatically switch the Bluetooth output, disconnecting the Bluetooth automatically switches to the AUX interface, and the power is also the AUX direct connection function.

More Detailed Photos:

JC-303 bluetooth 5.0 Receiving DAC Decoder Audio bluetooth Module Audio Decoding Board
JC-303 bluetooth 5.0 Receiving DAC Decoder Audio bluetooth Module Audio Decoding Board
JC-303 bluetooth 5.0 Receiving DAC Decoder Audio bluetooth Module Audio Decoding Board

Additional Information

When you order from Alexnld.com, you will receive a confirmation email. Once your order is shipped, you will be emailed the tracking information for your order’s shipment. You can choose your preferred shipping method on the Order Information page during the checkout process. Alexnld.com offers 3 different international shipping methods, Airmail, Airmail registered and Expedited Shipping Service, following are delivery times:

Airmail and Airmail Registered Area Time
United States, Canada 10-25 business days
Australia, New Zealand, Singapore, United Arab Emirates 10-25 business days
United Kingdom, France, Spain, Germany, Netherlands, Japan, Belgium, Denmark, Finland, Ireland, Norway, Portugal, Sweden, Switzerland 10-25 business days
Italy, Brazil, Russia 10-45 business days
Other countries 10-35 business days
Expedited Shipping 7-15 business days to Worldwide

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You may return this item within 15 days of delivery for a full refund. We’ll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

If you need to return an item, please Contact Us with your order number and details about the product you would like to return. We will respond quickly with instructions for how to return items from your order.


Product not working as expected?

Our Customer Service team are able to resolve most product related issues quickly and efficiently. For the support, please contact our team using the submission form on our Contact page.


Returns Eligibility

In order for a return to be eligible for a refund please ensure you return within 15 days from the delivery date of your item.

We kindly ask that you return your item to us in new or lightly used condition with no signs of worn out. If the item is in used condition, please send us the photo to confirm its condition before returning it. We reserve the right to refuse any return if there are any signs of worn out or if parts are missing.

Please be aware, we do cover the cost of the returns fees only if the return is a result of our error (you received an incorrect or defective item, etc.).

All customers should contact us before sending anything to us. We will not be responsible for returned item(s) without notifying us in advance.



Following a successful inspection of your return we will process a full refund to the credit / debit card or PayPal account which was used to place the original order. 

You should expect to receive your refund within four weeks of returning your package, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 20 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (3 to 5 business days).


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