Pioneer VSX-LX305 power usage issues

[peng]

Why?

Will get back to you on this when I get home.

 

[peng]

Yes, relays are really loud in LX305. There is a click

The measurement is power drawn from mains socket. Voltage is constant 120V (or 230V) and there is no way to include 8 Ohm for any calculation

Thank you, my silly mistake!

 

[peng]

Why?

The "Why": 1) I must have a weak coffee (popej's post woke me up)prior to posting, 2) Missed the part that you said volume was at -40.

At -40 regardless of what you were listening to, the amplifier section likely was outputting very low level, so it is understandable that the measured "power" would roughly = power consumed by the video section and the other overheads (as mentioned by another poster earlier on) and therefore would look a flat fine.

My apology for my silly post that I have since deleted after popej's, to avoid confusing others.

 

[EWL5]

I don't know if this was mentioned but what speakers are you using and what are the nominal impedances?

 

[Drunkinho]

I don't know if this was mentioned but what speakers are you using and what are the nominal impedances?

Monitor Audio Monitor 100 - 8 Ohm
Monitor Audio C150 - 8 Ohm
Monitor Audio 50 - 4 Ohm

 

[celo]

So, I am going to buy this AVR locally but came across to this thread. Is this still an issue or was it fixed by a firmware?

I also saw this and one of the fixes mentions

4. Improved Amplifier Power supply sequence

Is this a fix for this problem?

https://assets.pioneerhomeusa.com/product-firmware/Firmware_Update_VSX_LX305_03-12-2025.pdf?v=1741782491

 

[popej]

It is not an issue, it is a feature.

 

[celo]

It is not an issue, it is a feature.

Yes, I bought it and realized it is the Direct Energy feature.

 

[popej]

Yes, I bought it and realized it is the Direct Energy feature.

"Direct Energy" seems to be a marketing term. Feature discussed here is an optimization of amplifier power losses. There is no mention about it in manual, and there is no way to turn it on/off. IMO this is a similar feature, that Denon calls "Eco Auto". See Denon description of "Auto":

ECO AVR-X3800H

manuals.denon.com

 

[celo]

"Direct Energy" seems to be a marketing term. Feature discussed here is an optimization of amplifier power losses. There is no mention about it in manual, and there is no way to turn it on/off. IMO this is a similar feature, that Denon calls "Eco Auto". See Denon description of "Auto":

ECO AVR-X3800H

manuals.denon.com

Maybe Pioneer may make it selectable in the software via firmware if they have enough complaints.

 

[MbphotoX]

Maybe Pioneer may make it selectable in the software via firmware if they have enough complaints.

since it doesn't hurt anyone or anything, there's really no need for it..