Poging GOUD - Vrij
Stromtank S-4000 ProPower MK-II XT
Stereophile
|March 2025
COMPUTER-CONTROLLED BATTERY POWER SOURCE

In my enthusiastic 2022 review of the Stromtank S-1000 ($16,900), I described the Stromtank as a computer-controlled lithium iron phosphate (LiFePO) battery array that, coupled with its AC inverters and all the trimmings, supplies clean, constant, stable off-grid AC power to hi-fi components. By softly depressing a single button on the front panel, Stromtank owners can easily switch from wall-connected mode (when the Stromtank's dimmable front-panel meter is blue) to a disconnected, battery-only state (when the meter is green). At the end of a listening session, users can return to blue mode to recharge the battery array.
When a Stromtank is fully charged, the needle on the meter rests at zero,² and a horizontal array of small green LEDs below the meter is fully illuminated. As battery charge dissipates, the number of illuminated LEDs decreases; the power meter's needle continues to rest at zero until the voltage starts to sag. If the Stromtank discharges fully during playback, the Stromtank automatically shifts from green to blue and begins to recharge. As it recharges, you can still play music, but the AC is no longer completely isolated from the vagaries of wall power.

Dit verhaal komt uit de March 2025-editie van Stereophile.
Abonneer u op Magzter GOLD voor toegang tot duizenden zorgvuldig samengestelde premiumverhalen en meer dan 9000 tijdschriften en kranten.
Bent u al abonnee? Aanmelden
MEER VERHALEN VAN Stereophile

Stereophile
EAT F-Dur
TURNTABLE WITH EAT F-NOTE TONEARM
10 mins
November 2025

Stereophile
Hi-fi near and far
As the Spin Doctor, I tend to lead an analog life. I'm not just talking about my preferred ways of listening to music, but also my approach to other everyday technology.
11 mins
November 2025

Stereophile
HiFi Rose RA280
It's been said before, but the essential truth remains as shiny as a new 2A3 tube: A well-made, good-sounding integrated amplifier is a sonic marvel, a triumph of audio engineering. Sound quality is just the beginning.
14 mins
November 2025

Stereophile
15 FOR 50 1975 IN 15 RECORDS
WAS IT SOMETHING IN THE AIR, SOMETHING IN THE WATER? COSMICALLY INSPIRED BY THE STARS AND THE MOON? OR MAYBE THE DEVIL WAS FINALLY CLAIMING HIS OWN AS ROCK MUSIC IN ALL ITS VARIANTS WAS UNASSAILABLY ASCENDENT.
12 mins
November 2025

Stereophile
Doing it for themselves—and for us
Women have undeniably become the most dynamic and vital creative force in music today. Without their good energies and ideas, music, which in the digital age has become more background than art, would be much less interesting and inspiring.
3 mins
November 2025

Stereophile
McIntosh DS200 STREAMING D/A PROCESSOR
McIntosh, which is based in my home state of New York, has long been in my audio life.
14 mins
November 2025

Stereophile
The BEAT Goes On
Adrian Belew had an itch that needed some serious scratching.
7 mins
November 2025

Stereophile
Half a century in hi-fi
Not many hi-fi dealerships can say they've survived half a century of history. Natural Sound, which is based in Framingham, Massachusetts, about 20 miles west of Boston, is one that can.
3 mins
November 2025

Stereophile
The skating force phenomenon
At the beginning of last month's As We See It, I wrote that I've lately been focused on \"analog things.\" I proceeded to write about refurbishing and modding my old McIntosh tuner. That's \"analog thing\" #1.
4 mins
November 2025

Stereophile
Monk's tenor
In Robin D.G. Kelley's definitive, 450-page biography of Thelonious Monk, Monk and tenor saxophonist Charlie Rouse first meet on p.100, in 1944.
4 mins
November 2025
Listen
Translate
Change font size