Author Topic: Power supplies working at 240v and efficiency  (Read 273 times)

MarconeMusic

  • Jr. Member
  • **
  • Posts: 61
  • Karma: +0/-0
    • Halomusic.ca
Power supplies working at 240v and efficiency
« on: April 11, 2018, 09:38:46 AM »
Hi.
Iíve heard rumours and Iíve searched the forum to find a definitive answer.

Do our power supplies work more efficiently at 240v than 120v?

I have the option at our place to set it up. Currently weíre on 120.

We just wired up a 600 line in. Transformer. Etc.

So. Upgrade to 240v?

Letís hear bout it from yíall!

Pros. Cons.

neumann25

  • Newbie
  • *
  • Posts: 29
  • Karma: +0/-0
Re: Power supplies working at 240v and efficiency
« Reply #1 on: April 16, 2018, 05:46:27 PM »
  Were you referring single phase 240,  120 per leg ? .. I found 120 single phase sounded much better than 120 per leg = 240!  Now if your in europe and can do single phase 240v  that sounds great! 

waltzingbear

  • Sr. Member
  • ****
  • Posts: 250
  • Karma: +10/-0
    • Portland, Oregon
    • Waltzing Bear Audio
Re: Power supplies working at 240v and efficiency
« Reply #2 on: April 17, 2018, 06:18:33 PM »
There is not much change in efficiency between 120 and 240 Vac, still needs the same power. Going to 240 does reduce the wire size needed for the same power level (Power=VoltsXAmps)

In theory, in the US, going to 240Vac would give you the advantage of balanced power, as that is inherently what it is. Any individual installation can of course have its own realities, just because its balanced voltage in setup doesn't mean the load is balanced, and that could possibly have an effect on interference and harmonics. A supposition.

By the way, "120 per leg = 240! " is still single phase. There is no "two phase" in actual usage, only single and 3 phase.

Cheers
Alan
« Last Edit: April 17, 2018, 06:20:54 PM by waltzingbear »
Alan Garren
Waltzing Bear Audio

MarconeMusic

  • Jr. Member
  • **
  • Posts: 61
  • Karma: +0/-0
    • Halomusic.ca
Re: Power supplies working at 240v and efficiency
« Reply #3 on: April 18, 2018, 07:04:14 PM »
:) awesome.

SO... should i? Hahahaha....


waltzingbear

  • Sr. Member
  • ****
  • Posts: 250
  • Karma: +10/-0
    • Portland, Oregon
    • Waltzing Bear Audio
Re: Power supplies working at 240v and efficiency
« Reply #4 on: April 19, 2018, 05:40:31 PM »
we don't really know where you are, and that makes a difference in what type of power distro you have to begin with.  And that's before any attempts at adjusting for "best sound".

Personally, in the US, I would use 220Vac  power to run an SSL, and have done so.  As all things though, it is a systems approach that is needed. I have been putting them into large system integration where there will be too much power used to even consider some of the oft touted minimalist approaches, such as running everything off one leg.  If you are using a full sized SSL I think that will generally be the case, but if you are using a cut down board, there may be other options.

So, as usual, it depends. :-)

Cheers
Alan
Alan Garren
Waltzing Bear Audio

MarconeMusic

  • Jr. Member
  • **
  • Posts: 61
  • Karma: +0/-0
    • Halomusic.ca
Re: Power supplies working at 240v and efficiency
« Reply #5 on: May 05, 2018, 07:20:25 AM »
Hey! Sorry I didnít clarify. I assumed yíall knew the board. My bad

Iím up in Hamilton Ontario.

Not the us. In Canada. Itís a 48now. Was a 64.

neumann25

  • Newbie
  • *
  • Posts: 29
  • Karma: +0/-0
Re: Power supplies working at 240v and efficiency
« Reply #6 on: May 05, 2018, 09:39:59 PM »
Hello 

I would do a mix with the power socket and supply wired for  single phase 120v, then change the supply to 240V and feed 120v per leg and see what sounds best.. I bet the 120v will sound "better" ..

I been threw all of this many times with power amps and console.. To me balanced power has its problems sonically!!!

I don't doubt your hear more bottom end with 240v, but the highs will not be as clean!

xmax

  • Sr. Member
  • ****
  • Posts: 260
  • Karma: +10/-3
Re: Power supplies working at 240v and efficiency
« Reply #7 on: July 12, 2018, 07:54:33 PM »
Here is a good way to save some power and sound better 8)
https://www.atomicinstrument.com/

MarconeMusic

  • Jr. Member
  • **
  • Posts: 61
  • Karma: +0/-0
    • Halomusic.ca
Re: Power supplies working at 240v and efficiency
« Reply #8 on: July 20, 2018, 01:33:26 AM »
Would love to! but 5100.00 for the unit. then Canadian conversion.
I have like 5 Power supplies at the moment. Maybe if i can sell some of them.. but...
... Its not the 80s ... album budgets are a little thin these days. I dont pay Hydro costs so, not concerned for now. Thanks tho!