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

Showing 2 responses by audio2design

Oh the wonderful power of suggestion even self suggestion.

I will guarantee you one thing with complete confidence, this power supply will be anything but “very low ripple and noise.” from a purely electrical standpoint. It is meant for lighting. When they say ripple, they mean DC ripple for lighting so you don't get minor strobe effects. You can have pretty large ripple in lighting without strobe effects. When they say noise, they literally mean acoustic noise as most linear strips are dimmed with PWM and it makes many power supplies buzz.

What it won't be is less electrically noisy than most other things, those running it at a fraction of its rated power may result in less EMI than something ran at its rated power.

Caykol, noise on the AC lines in the 10's of MHz from a switch mode is not unheard of, nor is radiated EMI at RF frequencies, into the 10's and hundred of MHZ.
oldhvy, stick to mechanics :-)

It’s a laptop power supply. Here, you can buy directly from the supplier:

https://sz-yhy.en.alibaba.com/product/1857822116-806101300/12_V_10a_12vdc_120w_Ac_dc_Laptop_Universa...

Model YHY-1201000 just like on the Waveform Lighting site. It is a two stage power supply so it has low flicker for lighting purposes. And yes, the pictures match exactly what is on Waveform Lighting site.  It even says only use for IT equipment purposes (not lighting)