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Excellent Power Supply Solution

In case you haven’t noticed, it’s very hard to find a good, affordable DC power supply from a U.S. dealer. I wanted a 12 volt 3.5 amp model for a Netgear router.  The quality linear power supplies are considerably more expensive than the router. But, then I stumbled upon an interesting product from Waveform Lighting. They offer a $49 DC power supply for strip lighting purposes. The 12 volt model can handle up to 10 amps and 100 watts. I do not know the technical details on how it works, but the description states “very low ripple and noise.” It also has overload voltage protection. The DC cable is 16 AWG wire.  A nice feature is that you can attach an audio grade power cable with a C7 connector. I used a Shunyata Venom cord. 

The unit did add a noticeable increase in sound quality. A little more clarity, more lifelike vocals and less harshness  in the upper treble. If you have a 12 volt modem, router or switch, give the Waveform Lighting DC power supply a listen. Here is the link: https://store.waveformlighting.com/collections/power-supplies-and-dimmers/products/filmgrade-12v-24v...
boakey39
cakyol's avatar
cakyol
940 posts
 
@boakey39,

We are talking about the DIGITAL world here.  A home router, carrying DIGITALLY streamed signals from the Internet, all the way to your home router and thru ethernet (or wifi) also being delivered to the DIGITAL interface of your streamer/amplifier/whatever.

Where things could go wrong is INSIDE your amplifier/dtoa converter, where the digital signal gets converted to an analog signal.  

But your router power supply is usually yards away from it and have nothing to do with the power supply of your analog gear.

lowrider57's avatar
lowrider57
5,411 posts
 
@cakyal, have you ever noticed the difference in noise-floor and SQ between a SMPS and a LPS in an audio system?

And regarding routers, they emit RFI which is found throughout the entire chain from the outside cable tie-in to inside the house.

cakyol's avatar
cakyol
940 posts
 
lowrider57

And still, NONE of them affect the digital signals.
cakyol's avatar
cakyol
940 posts
 
Just keep your digital gear & SMPS type psus and walwarts AWAY from your analog gear. That is all you need to do. They may affect your analog gear but they will have NO effect on your digital stuff, especially on your home router.

oldhvymec
5,101 posts
 
It actually has to be on it's own dirty circuit. Above 115, just noisy as could be. 110-115.

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I thought the thread was noise from a PS (add all the foot notes you like)

Thanks OP, as I said, I have to had a dirty circuit for my router and it seems to get rid of ALL my noise. 

I understand if a PS looks better on a scope, it normally is quieter than one that isn't. You're (OP) saying every bit has a potential to help, (I agree), but not harm, if you use a DC PS 12-24VDC.

I say there is an added benefit (I hope) for ME, getting rid of a noisy PS and a GL gadget at the same time, replacing the PS with a better performer, at least from a scope perspective.

My systems are combined, digital and analogue. ZERO floor noise. Nothing worse than a noisy system.  I love the fix, TURN IT UP.. LOL

Turn a system up to 100% nothing playing, what do you hear? Get next to the speakers. What do you hear? That is the measure of a quiet system...

Thanks OP

Regards
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