or Connect
Head-Fi.org › Forums › Equipment Forums › Portable Headphone Amps › An upgraded power supply for Audinst HUD-mx1 ?
New Posts  All Forums:Forum Nav:

An upgraded power supply for Audinst HUD-mx1 ?

post #1 of 2
Thread Starter 

Hi,

Audinst HUD-mx1 portable DAC and headphone amp takes 12-15V or can rely on USB power entirely. Their tech emailed me that (1) if connecting a power supply, it feeds the analog section, while digital section still relies on USB, and (2) 15V, the max, is optimal (if properly stabilized).

I wonder if connecting a good power supply would provide an audible upgrade in sound vs (1) just using USB sound, and / or vs (2) just using the supplied wallwart power adapter.

 

I am looking at laptop grade power supplies such as:

http://www.allelectronics.com/make-a-store/item/PS-1233/12VDC-3.33A-SWITCHING-POWER-SUPPLY//1.html

http://www.trcelectronics.com/Meanwell/gs18a15-p1j.shtml

 

Are these typically better than the tiny wallwarts or do such regulated power supplies in fact tend to be noisy? I figure, the reduced size constraint and grounding at least gives them the chance to be better...

 

Are there any better options I should be looking into? I am not looking at anything that would cost more than the Audinst HUD-mx1 unit itself though.

 

Many thanks for your input

 

Alex

post #2 of 2

Anyone interested may find the article “Op-Amp Power Supply Quality Considerations” relevant: http://tangentsoft.net/audio/opamp-ps.html. From what I gathered, you have to be careful with switching-mode regulated power supplies (unless you consider switching frequency). In general after that article I'm not sure what I should buy first, a power supply or an oscilloscope :)

New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Portable Headphone Amps
Head-Fi.org › Forums › Equipment Forums › Portable Headphone Amps › An upgraded power supply for Audinst HUD-mx1 ?