Multiwave Firmware for P5 and P10


#1

Hello, I received an email alert this morning concerning new multiwave firmware but none of the links (to the official page or to the discussion) are working. What happens ?



Best regards


#2

I also noticed they disappeared.



I was an early adopter and noted that there was a flaw in the way the new feature worked. My guess is that PS Audio withdrew the firmware update to fix it.



The bug is only in the way the strength of the multiwave is displayed. My guess it will be easy to fix and a new version will be available very soon.


#3

Elk can you explain the multiwave please ? As I asked Paul and now the whole thread is gone.


#4

The power coming out of the wall is a sine wave. If perfect, it would have no ripples and would be a smooth 60Hz wave. The P5 and P10 work by creating a near perfect sine wave, removing the majority of noise and distortion on the line.



Paul and his clever engineers found that equipment can sound even better powered by a sine wave with an odd harmonic added. For example, a 60Hz sine wave, plus the the third-harmonic (200Hz). Multiwave is exactly this, the fundamental frequency with an added harmonic(s).



The theory is that the added harmonic gives the capacitors and other components extra time to fully top off.



The new firmware adds the ability for the end user to control how much of the harmonic(s) is added. The end user can experiment to hear what sounds best.



The downside is that multiwave can cause some transformers to hum a little. The cleaning wave does this, too. But the humming is more random sounding. Multiwave is not advised for speed controllers for turntables and may not be appreciated by some tube equipment (my thought).


Sine or Multiwave function
#5

The downside is that multiwave can cause some transformers to hum a little. The cleaning wave does this, too. But the humming is more random sounding. Multiwave is not advised for speed controllers for turntables and may not be appreciated by some tube equipment (my thought).

Probably these transformers already humm a bit. I quess it is better audible with multiwave. It's new for me that it's not advised for turntables. With the third harmonic added the sine wave get's a little bit more body and the top end is pulled down just a bit so there is better direct current storage in the capacitors. I can't see what trouble it can cause. Interesting stuff! :)

#6
wijnand said: Probably these transformers already humm a bit.

Or at least are a bit more prone to hum. Most transformers vibrate a tad, even if we do not hear anything.

wijnand said: It's new for me that it's not advised for turntables.

Now that you point it out, I am probably conflating multiwave with when the Power Plants allowed one to change the output frequency. :)


#7

Thanks elk. Now I understand , and Paul how did you guys this ?? The only downside to me is the tube part as the p5 does make a good difference now and I do not want to spoil that.


#8

Don’t worry about tubes. The older Power Plants included some multiwave options that could upset tube bias, fans, and anything that operated with reference to the sine wave frequency.



The newer Power Plants use a version of multi-wave which is tube friendly. My only thought is that the more “intense” version of the new multiwave firmware might be an issue. But thinking through this now I doubt it is any issue at all.



Tube away!


#9

Ok thanks . After all I bought this stuff to keep it clean . Thanks very much elk.


#10

Seems ps santa will come for xmas

I hope i was enough good guy :slight_smile:


#11
Seems ps santa will come for xmas
I hope i was enough good guy :)

Congrats, maniac!

Frode :)


#12

Cool. I want to try this out. Lets add another three letter acronym to our vocabulary… VMW = variable multi-wave. :-B


#13

Great just make it even harder for the retard lol.

PS and as all my power plants are working fine maybe ill just let the dust settle a little …


#14
stereophilus said: VMW = variable multi-wave.

:)

#15

We will be back with it. Elk noticed a small problem that really had little affect on anything, but it was annoying and not right. When we went to fix the problem we found another, buried in the code that has to do with the bootloader. We’re working on it now, but with the holidays it’s hard. If Dennis can fix it on Monday I’ll release it again.



Sorry guys.


#16

Paul:



I noticed another quirk:



When installed on the P5, the front display now shows five zones, rather than the appropriate four. The touch screen still works, but there is an extra virtual zone shown.



I am happy to be a P5 beta tester prior to releasing the firmware into the wild if this is of interest.


#17

Paul

Please let elk be part of this. Make it an early xmas gift to all. LOL

al


#18

Hello, any news?


#19

Sorry guys. The entire company is closed this week for the holidays. Gotta give our folks a much needed break. We found a bug and are working hard to fix it but work won’t continue until next week.


#20

A perfectly fine plan. :slight_smile: