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Sonos Connect PSU build
Sonos Connect PSU build
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Old 10th January 2020, 02:52 PM   #1
MrDTUK is offline MrDTUK  United Kingdom
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Default Sonos Connect PSU build

Hello all

I am interested in upgrading my Sonos Connect with an external power supply and have come across the fidelityaudio psu upgrade for $650 / £500 which is highly regarded.

I have a level of DIY / electrical skill but want to ensure I am going about this the right way. I am planning on building my own power supply which must be dual voltage, stated as +13.6v and +3.3v by fidelityaudio, (so presumably the target voltages I need).

I have seen DC linear filtered power supplies etc on aliexpress such as this;
Lusya 3 stage Filtering 50W DC Linear Power Supply DC12V For Upgrade Audio Speaker Related Equipment NAS CAS PC HiFi T0066-in Amplifier from Consumer Electronics on AliExpress

Which would then need a transformer hooking up which I can source locally.

Could anyone give me a little guidance on how to proceed with my build in terms of achieving these odd voltages as all the kits I see have set voltages like 5 or 9v.

I am OK with the DIY kits although my preference would be the buy this is kit form and assemble it. I can handle modifying the connect easily enough.

Any thoughts / ideas are much appreciated...
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Old 10th January 2020, 03:40 PM   #2
rayma is online now rayma  United States
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How much current is required at each voltage? You must know this before doing anything else.
What is your AC line voltage?

Last edited by rayma; 10th January 2020 at 03:45 PM.
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Old 10th January 2020, 04:08 PM   #3
MrDTUK is offline MrDTUK  United Kingdom
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Thanks
It will be a 230v ac line supply as I am in UK.
I am not sure of the exact current required so I was going to aim for a 50w supply as this would be more than enough to supply its requirements given that it’s not an amp (I believe).
Unless there is a way of working this out / measuring it?
Thanks
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Old 10th January 2020, 10:43 PM   #4
MAAC0 is offline MAAC0  Portugal
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Sonos Connect has many components. Which one do You want to power ?
15V followed by two diodes in series=~13.6V or better use a regulator with adjustment.
3.3V is a standard microprocessor / phones voltage. There are standard regulators available.
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Old 10th January 2020, 10:56 PM   #5
rayma is online now rayma  United States
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Quote:
Originally Posted by MrDTUK View Post
I am not sure of the exact current required so I was going to aim for a 50w
You really do need to know that before anything else.
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Old 10th January 2020, 11:11 PM   #6
MrDTUK is offline MrDTUK  United Kingdom
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Join Date: Jan 2020
Quote:
Originally Posted by MAAC0 View Post
Sonos Connect has many components. Which one do You want to power ?
15V followed by two diodes in series=~13.6V or better use a regulator with adjustment.
3.3V is a standard microprocessor / phones voltage. There are standard regulators available.
I plan on removing the pay in the sonos connect so I will be powering all components in it.
Not this is not the Connect AMP. Just the connect, like the fidelity audio upgrade.
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Old 10th January 2020, 11:12 PM   #7
MrDTUK is offline MrDTUK  United Kingdom
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Quote:
Originally Posted by rayma View Post
You really do need to know that before anything else.
Any recommendations on how to work it out?
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Old 11th January 2020, 12:28 AM   #8
rayma is online now rayma  United States
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Quote:
Originally Posted by MrDTUK View Post
Any recommendations on how to work it out?
Ask the mfr.
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Old 11th January 2020, 08:38 PM   #9
MrDTUK is offline MrDTUK  United Kingdom
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Join Date: Jan 2020
Have emailed Sonos who would not give an answer.
I am going to build a power supply that has the ability to feed over 1A so I don’t see this an issue unless you can tell me why it is? The sonos connect doesn’t have enough in it to use anywhere near that amount of power I believe.

I am looking at using these for the voltage regulators;
2-10A Gold seal linear high current regulated power supply board Low Noise High Stability A7-014
AliExpress
And sourcing some tordial transformers locally to match slightly above my required voltages.
Any advice / thoughts are much appreciated...

One concern I do have is that they are a high current voltage regulator, and does this mean that they won’t work well with low currents, like I believe my sonos connect to be?
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Old 12th January 2020, 10:36 AM   #10
MrDTUK is offline MrDTUK  United Kingdom
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Ok. I Now know more info.
It’s a 100mA 5w supply currently in the device.

So I big question is currently;
Will the above 2-10A supply board work for this as it is rated at 2 to 10a
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