Stromtank 2500 MK2

**Mike** · June 14, 2023, 04:34 PM

With strong encouragement from Vince at MSB, we’ve added Stromtank. The 2500 mk2 with its digital filtered inputs and ability to take the entire front end and preamp off the grid is huge!

We’ve run this all day from full charge and still only managed to use 20% of the battery! We have the Taiko Extreme, VAC Master Pre, MSB Select II (two chassis), MSB Digital Director and Pass Phonostage plugged into it - all turned on.

The sonic benefits are immediate. The bass, the micro detail retrieval, the backgrounds, separation, everything!

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**MichaelsMinute** · June 14, 2023, 08:33 PM

Great looking unit, Mike!

**Adyc** · June 15, 2023, 01:48 AM

Originally Posted by Mike

With strong encouragement from Vince at MSB, we’ve added Stromtank. The 2500 mk2 with its digital filtered inputs and ability to take the entire front end and preamp off the grid is huge!

We’ve run this all day from full charge and still only managed to use 20% of the battery! We have the Taiko Extreme, VAC Master Pre, MSB Select II (two chassis), MSB Digital Director and Pass Phonostage plugged into it - all turned on.

The sonic benefits are immediate. The bass, the micro detail retrieval, the backgrounds, separation, everything!

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I check their website. Stromtank 2500 has battery capacity 2100wh. You said the front end only consumes 20%. It means the front end consumes around 420wh. You said the system is up all day long. Assume it is 10 hours. That mean the mean power your front end is 42w. Don’t think the front end uses such little power. There is something missing. Are you sure you run Stromtank off grid? Or when you say all day long, the system is not playing any music. It is idle.

**Mike** · June 15, 2023, 03:24 AM

It was 6 hours at that point, not 10.

**brodricj** · June 15, 2023, 08:24 AM

Originally Posted by Adyc

...That mean the mean power your front end is 42w...

My 7 box Esoteric stack uses 100 watts in full flight according to the power meter on my PS Audio regenerator. Quite remarkable.

As for the Stromtank, I find Mike's observations interesting. My Stromtank dealer said Shunyata was a better match with Esoteric gear. So that is what I did.

**still-one** · June 15, 2023, 08:48 AM

I have been tempted to try the Stromtank in my set-up but I am still trying to prioritize my next upgrade and not sure how that falls. Previous demos (those were in-store) aligned with Mikes comments.

**Adyc** · June 15, 2023, 08:52 AM

Originally Posted by brodricj

My 7 box Esoteric stack uses 100 watts in full flight according to the power meter on my PS Audio regenerator. Quite remarkable.

As for the Stromtank, I find Mike's observations interesting. My Stromtank dealer said Shunyata was a better match with Esoteric gear. So that is what I did.

Ah. Ok. That means with full charging, you can listen 12 hours straight without being on grid.

**brodricj** · June 15, 2023, 08:55 AM

The S-1000 would be a better fit for my front end power demand. I really would like a single box to take care of my power conditioning rather than the multiple boxes I'm currently using in an ad-hoc way.

**Adyc** · June 15, 2023, 09:24 AM

Originally Posted by brodricj

The S-1000 would be a better fit for my front end power demand. I really would like a single box to take care of my power conditioning rather than the multiple boxes I'm currently using in an ad-hoc way.

I think S1000 maybe more suitable for one component. I would go for S2500 to power front end. Like all power generators, you want plenty of reserve not just enough.

**Mike** · June 15, 2023, 09:53 AM

For most people, the 1000 is ample. We will likely get a couple of 1000’s for the other rooms which have less gear on at one time.

But I honestly am shocked at the sonic improvements. I didn’t know what to expect, but Vince was spot on. He said the revelation came at a show when no matter what they did, what they tried, the power was just awful and “peaking his meter”. I know he brings a line noise measuring device to every show. The good folks at Stromtank loaned him a 2500 mk2 with the digital outlets and he said it was “game over.” He now uses it at home and everywhere. He’s been urging me to bring them in for months. Damn, he was spot on!

Recommendation was taiko and digital director info the digital slots for now, but when my Stromtank power strip shows up (the SEQ-5 - launched at Munich), I’ll plug the Taiko into one and the three MSB boxes into the strip and the strip into the other. Yes, this is the approach Stromtank and MSB recommend.

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**Adyc** · June 15, 2023, 10:00 AM

Better than Shunyata Everest?

**Mike** · June 15, 2023, 10:00 AM

Originally Posted by Adyc

Better than Shunyata Everest?

Completely different technology, approach and price point!

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**mxk116** · June 15, 2023, 10:10 AM

Originally Posted by Mike

For most people, the 1000 is ample. We will likely get a couple of 1000’s for the other rooms which have less gear on at one time.

But I honestly am shocked at the sonic improvements. I didn’t know what to expect, but Vince was spot on. He said the revelation came at a show when no matter what they did, what they tried, the power was just awful and “peaking his meter”. I know he brings a line noise measuring device to every show. The good folks at Stromtank loaned him a 2500 mk2 with the digital outlets and he said it was “game over.” He now uses it at home and everywhere. He’s been urging me to bring them in for months. Damn, he was spot on!

Recommendation was taiko and digital director info the digital slots for now, but when my Stromtank power strip shows up (the SEQ-5 - launched at Munich), I’ll plug the Taiko into one and the three MSB boxes into the strip and the strip into the other. Yes, this is the approach Stromtank and MSB recommend.

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In your application are you using aftermarket power cords (Shunyata, Nordost, etc) from the sources to the Stromtank? Does the Stromtank eliminate the need for a power distributor (Shunyata Everest, Denali, etc)?

**Mike** · June 15, 2023, 10:20 AM

Originally Posted by mxk116

In your application are you using aftermarket power cords (Shunyata, Nordost, etc) from the sources to the Stromtank? Does the Stromtank eliminate the need for a power distributor (Shunyata Everest, Denali, etc)?

Excellent questions! We are using all Nordost Valhalla 2 because the Stromtank is in our Nordost room. The Stromtank has noise suppression technology when you’re on the grid and no need for noise suppression when on the battery since that’s the purest.

In practical terms, you will listen all day on battery and charge at night.

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**Mr Peabody** · June 15, 2023, 11:30 AM

Not that it happens a lot but how cool would that be to be able to listen to your system when the power is out. Plus being able to charge your phone or tablet.

**Mike** · June 15, 2023, 11:36 AM

Originally Posted by Mr Peabody

Not that it happens a lot but how cool would that be to be able to listen to your system when the power is out. Plus being able to charge your phone or tablet.

Ha! I never thought of that. In Florida, especially summer, that’s a real possibility.

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**Audio 1** · June 15, 2023, 11:42 AM

Originally Posted by Mike

Ha! I never thought of that. In Florida, especially summer, that’s a real possibility.

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Also given the frequency of brief power outages during the summer months it can help to save sensitive gear.

**Mike** · June 15, 2023, 11:43 AM

Originally Posted by Audio 1

Also given the frequency of brief power outages during the summer months it can help to save sensitive gear.

Another very good point.

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**mep** · June 15, 2023, 02:18 PM

Originally Posted by Mr Peabody

Not that it happens a lot but how cool would that be to be able to listen to your system when the power is out. Plus being able to charge your phone or tablet.

That's why I bought s whole house back up generator.

**Rnrmf** · June 15, 2023, 03:15 PM

Mike, with the Stromtank in use, is the character of the power cables connecting gear as strong as if they had a connection to the power grid?

**Mike** · June 15, 2023, 04:00 PM

Originally Posted by Rnrmf

Mike, with the Stromtank in use, is the character of the power cables connecting gear as strong as if they had a connection to the power grid?

We haven’t done any A/B’s yet.

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**Dizzie** · June 15, 2023, 04:29 PM

Originally Posted by Mr Peabody

Not that it happens a lot but how cool would that be to be able to listen to your system when the power is out. Plus being able to charge your phone or tablet.

I think that monster could charge your car.

**Adyc** · June 15, 2023, 05:01 PM

Originally Posted by Mr Peabody

Not that it happens a lot but how cool would that be to be able to listen to your system when the power is out. Plus being able to charge your phone or tablet.

You can install Tesla Powerwall for that. Much much higher capacity.

**Adyc** · June 15, 2023, 05:14 PM

Deleted

**mdp632** · June 15, 2023, 05:29 PM

Originally Posted by Adyc

Better than Shunyata Everest?

What about an Everest + Tesla Powerwall? :-)

I'll wait for Shunyata's answer to the Stromtank. Even if it takes years.

Perhaps Caelin and team will find a better technology and implementation.

Supercapacitors?

**Mike** · June 15, 2023, 06:03 PM

Originally Posted by mdp632

What about an Everest + Tesla Powerwall? :-)

I'll wait for Shunyata's answer to the Stromtank. Even if it takes years.

Perhaps Caelin and team will find a better technology and implementation.

Supercapacitors?

Solar is bad sonically. See Michael Fremer’s nightmares with it.

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**Adyc** · June 15, 2023, 06:27 PM

Originally Posted by Mike

Solar is bad sonically. See Michael Fremer’s nightmares with it.

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It is the quality of DC-AC converter. Stromtank is also a DC-AC converter. You can’t dismiss solar just like that. Many audiophiless install PV system have no issue on the sonic impact on their systems.

**Audio 1** · June 15, 2023, 07:30 PM

Originally Posted by Adyc

It is the quality of DC-AC converter. Stromtank is also a DC-AC converter. You can’t dismiss solar just like that. Many audiophiless install PV system have no issue on the sonic impact on their systems.

Yes Fremer had a back-up generator installed that caused increased noise. Ultimately the generator transfer was bypassed and the room was direct wired with far better quality cable, grounding, breaker box etc.
It is a very informative video and many of the issues existed before, but the generator installation made the issue far worse.

**Mike** · June 15, 2023, 08:17 PM

Originally Posted by Audio 1

Yes Fremer had a back-up generator installed that caused increased noise. Ultimately the generator transfer was bypassed and the room was direct wired with far better quality cable, grounding, breaker box etc.
It is a very informative video and many of the issues existed before, but the generator installation made the issue far worse.

Ah! You’re right! It wasn’t solar it was the backup generator.

Ok, solar good! My bad.

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**MichaelsMinute** · June 15, 2023, 08:51 PM

Originally Posted by Mike

Ah! You’re right! It wasn’t solar it was the backup generator.

Ok, solar good! My bad.

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I simply have a bike hooked up to my system and make my wife pedal to power it.

. J/K. That Stromtank sounds like it would be amazing.

**4N6** · June 16, 2023, 08:01 AM

Originally Posted by MichaelsMinute

I simply have a bike hooked up to my system and make my wife pedal to power it.

...

This Is SportsCenter (2003) Promo - ESPN - Lance Armstrong - YouTube

**Porsche** · June 16, 2023, 05:07 PM

the amps plugged into this?

**Mike** · June 16, 2023, 06:17 PM

Originally Posted by Porsche

the amps plugged into this?

No. I’ve thought of trying it, but ideally I would want a 4000 or 5000 for the amps.

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**brodricj** · June 17, 2023, 09:03 AM

Originally Posted by Adyc

..I would go for S2500 to power front end..

For the cost of a S-2500 I could buy half a Tesla and plug my front end into that and run it for 10 years.

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