I have been working on transforming a wired active HiFi speaker into a streaming wireless speaker.
Here's what I combined/my items:
How it's done
I have the Up2Stream Mini as a WiFi receiver for the incoming audio stream. This module converts the stream into an analog signal. Via a cable this signal is going from the Up2Stream Mini directly to the audio-IN connector on the amplifier board in the active B&O speaker.
How it's connected
The 230-to-5 volt converter is used to get the right power to the Up2Stream Mini. The input (230v) is tapped from the 230v that goes into the power transformer of this active speaker. Therefor I looked for an isolated 230-to-5 volt converter.
Problem
Everything works perfectly, but one thing: noise!
Question
Who can help with a solution?
Here's what I combined/my items:
- Arylic Up2Stream Mini v3 streaming DAC module: Wifi Audio Receiver with Multi zone Control-Arylic.com
– arylic - 230v to 5v converter, isolated: 3pcs 5v 1a ac-dc power supply step down module bare board Sale - Banggood.com, and another one I tried is: 3pcs hlk-pm01 ac-dc 220v to 5v mini power supply module intelligent household switch power supply module Sale - Banggood.com
- Active speaker B&O BeoLab 8000: Bang and Olufsen Beolab 8000 Active Loudspeaker System Manual | HiFi Engine
How it's done
I have the Up2Stream Mini as a WiFi receiver for the incoming audio stream. This module converts the stream into an analog signal. Via a cable this signal is going from the Up2Stream Mini directly to the audio-IN connector on the amplifier board in the active B&O speaker.
How it's connected
The 230-to-5 volt converter is used to get the right power to the Up2Stream Mini. The input (230v) is tapped from the 230v that goes into the power transformer of this active speaker. Therefor I looked for an isolated 230-to-5 volt converter.
Problem
Everything works perfectly, but one thing: noise!
- Situation A: When the amplifier in the speaker is on & no music is playing, a slight noise can be heard. But in fact, it's not a real problem, because only in a distance of 15-20 cm, that noise can be heard.
- Situation B: When the amplifier in the speaker is on & music is playing, the noise is amplified and can even be heard at a distance of 2 meters. When the music is stopped, the noise level immediately goes down (as described in 'situation A').
Question
Who can help with a solution?
I have a number of Arylic products, and find that they can be noisy.
To prove that it is a PSU problem, can you temporarily power your Arylic unit with a phone charger or a battery bank?
If the noise goes away, then try one of these:
Module d'alimentation Intelligent pour Mini commutateur d'isolation domestique, 10M03/09/12/15/24/220V a 3.3V/5V/9V/12V/15V/24V | AliExpress
Datasheet here:
10M05 - HLK-10M05 10W power 5V output AC-DC power module - Hi_Link - Shenzhen Hilink Electronics
To prove that it is a PSU problem, can you temporarily power your Arylic unit with a phone charger or a battery bank?
If the noise goes away, then try one of these:
Module d'alimentation Intelligent pour Mini commutateur d'isolation domestique, 10M03/09/12/15/24/220V a 3.3V/5V/9V/12V/15V/24V | AliExpress
Datasheet here:
10M05 - HLK-10M05 10W power 5V output AC-DC power module - Hi_Link - Shenzhen Hilink Electronics
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