Lithium-based Online UPS -- any audio advantage(s) ?

[captainsubtext]

Acoustic Revive RTP-4ultimate Power Conditioner and Power Reference Power Cable Review

If there were one tweak that an audiophile could use to educate non-audiophiles on why we labor so much for sound, power conditioning would be at the top of my list. Whereas cables & vibration control accessories are often subtle in their effect, power conditioning can be as obvious as a yawn in...

www.dagogo.com

Do you have eu plugs or us/japan plugs

 

[essrand]

Do you have eu plugs or us/japan plugs

USA

 

[essrand]

Bought Ecoflow Delta 2!!

I am using it for my front end only.. currently Streamer, DDC, DAC and Preamp are plugged in to Ecoflow through the Puritan Audio PSM 156.

Power amp and subs are being driven directly from the output of my online UPS.

Initial impressions are quite good... am really liking what am hearing...

My usage - Charge Ecoflow fully and then use the battery generated output only, by switching off the mains input to Ecoflow. The backup is pretty good.. I have used around 3 hours or so...As per the data shown in the Ecoflow app, it should run for another 15 hours; before requiring a charge.. Another plus is that the internal fans are not so noisy...

And yes, given the amount that we shell out for interconnects and all, this one is pretty reasonable....

Any further impressions on this?

 

[Miany]

Any further impressions on this?

Works well.. The output quality seems to be really good.. tried removing the power conditioner and connected every source component directly to ecoflow.. did not feel the absence of power conditioner that much.. also.. the mobile app is great too...

 

[amrutmhatre90]

I’ve been using the EcoFlow Delta 2 with my HiFi setup for the past few days, and I’m genuinely impressed.

Setup:
Wall AC → EcoFlow Delta 2 → Onfilter → Entire HiFi chain

The result is a super-clean sound with noticeably improved soundstage and musicality, along with a solid 4–5 hours of battery backup when all my gear is running.

My full chain draws around 70–78W at standby, with the Hegel taking up most of that.
At normal listening levels, consumption rises to about 180W with peaks, and when pushed harder it goes up to 200W, peaking around 210W.

The headphone tube amp on its own sits at roughly 150W.

Highlights:
• Seamless switching from AC to battery within milliseconds. Only my Hegel amp restarts if it’s playing music, while the rest of the gear stays powered on.
• Expanded soundstage with greater width and spaciousness.
• Highs are smoother, more refined, and more musical.
• Bass quantity has reduced slightly, but the quality is far better—what I initially thought was fullness before now feels like a touch of bloat.
• Vocals and midrange have gained even more clarity and presence.





I tested whether the Hegel lost any dynamics using three different power configurations:
1. Hegel → Onfilter → EcoFlow Delta 2 (battery mode)
2. Hegel → Onfilter (direct AC)
3. Hegel → Wall AC

Result:
• Option 3 was by far the worst—lots of noise coming straight from the wall sockets. I’m spoiled by the Onfilter now.
• Options 1 and 2 were very close, but configuration 1 had the slight edge—best performance came when running on battery.

A few things to keep in mind:
• For those using tube amps: when powering on, the initial surge can trip the EcoFlow Delta 2. You might need a larger model. (Headphone tube amps, however, work fine.)
• I wish EcoFlow had included some kind of physical switch for the AC outputs.

Standby vs All Equipments switched on and playing ( both HP tube amp and Hegel Int)


I can already picture myself carrying a small headphone setup outdoors—enjoying music while soaking in nature .
• CDT powered from the DC output
• DAC from the USB output
• Headphone amp from the AC mains

And if needed, I can even recharge the EcoFlow directly from the car while on the move.

 

[essrand]

I have been using the Ecoflow Delta 2 for months now.

It's a subtle improvement over the sound, but there's a small fan hum when the power amp turns on and it hum stays, so better to keep in a different room.

For me it's a great solution, no more worries about bad Goa power, and no detrimental effect to the sound that I can detect.

My entire system is able to plug into it and I can play the system on only battery power for 4 hours before it needs a recharge.

Using it as an online UPS is also an option, which allows you to play music 24/7. Did blind A/B tests, could not make out any difference in sound between using battery only vs plugged in mode.

Hope this helps you make your decision.

BTW AMazon is having a kickass discount on this right now in their Diwali sale, 20K less than what I paid, sigh! Go for it, esp if you don't live in Mumbai.