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Stromtank S 1000 computer-controlled battery power source


The Kingdom of Audiophiledom relies on a paradox. Lifeless audio systems and rooms aim to deliver music that can enliven our senses and touch our souls. The lifeless nature is there to bring music to life.

This holistic fact — that systems and rooms function as living organisms where every part is involved and interconnected — came to me when, during one of the first AXPONAs in Chicago, I entered a tall,, cave basement room with multiple spongy “conference room” walls. “There’s no way any setup can make good sound in this room,” he said to himself. However, the system sounds unbelievable good. Rock-solid bass, interesting transparency, smooth transmission, excellent soundstaging, drop-dead beautiful sound. That full musical presentation forced me to stay long.

Before I left, I asked the exhibitors about a setup component that, despite its size and design, was unfamiliar to me. Thus I discovered the German-made Stromtank S 5000 power generator (now $ 50,250), a large, 275lb computer-controlled lithium-iron-phosphate battery array behemoth whose 1500VA continuous power capacity and 5000Wh (Watt-hour ) storage capacity, distributed to six outlets, enables it to power amplifier and front-end components at once.

I have long been convinced that batteries can provide the cleanest, most stable power of high-end components, at least until they start to lose their charge. Has Stromtank come up with a practical (if heavy and expensive) solution that can help connect me (and others) with a better voice?

Thus it happened
About seven years ago, Alex Wilde of Stromtank America offered me a smaller Stromtank S 1000 audiophile power generator ($ 15,975) for review. I uttered a silent “Hallelujah!” While the eight Hubbell outlets transmitting the S 1000’s 1000Wh can power the front-end components in 5-8 hours, the 450VA continuous output power at 77 ° F than not enough to provide full power through my D’Agostino Progression M550 monoblocks, which output up to 1100Wpc to 4 ohm (nominal impedance) Wilson Audio Alexia 2 loudspeaker. However, I jumped at the chance to find out how even partial freedom from today’s changing and AC-line-induced noise generated by computers, appliances, internet, cell towers, LEDs, sunspots , and/or space aliens can influence the sound of my system.

722strom.bac

When the 90lb Stromtank S 1000’s 19 ”× 19” footprint proved too large for my rack, I placed a 1 ”-thick piece of plywood between the Stromtank and the floor and installed the Nordost Sort Kones between the Stromtank and the tree.Really behind it, at the bottom left of the shelf of my rack, sits the AudioQuest Niagara 7000 power conditioner, whose high-current outlets keep the D’Agostino monos running.The S 1000 powers the D’Agostino Momentum HD preamplifier, the dCS Rossini DAC, Clock, and Transport, and the HDPlex 300 linear power supply, which feeds an EtherRegen and AfterDark clock.The rack also holds a darTZeel NHB-18NS preamp, whose rechargeable battery power supply avoids the need to feed it from the Stromtank.

I found myself attracted in an almost religious way to the “Mighty Fortress Is Our God” face of the S 1000, which has a huge electricity meter that changes from blue to green. I paid close attention to the green LED array, which indicates the amount of charge remaining before the unit automatically switches to wall power. I followed the directions and put the unit in blue-light charge-the-battery mode every time I left the room. Only once during my listening time did the S 1000 run out and replace itself with AC (footnote 2).

Stromtank claims that its deployment of lithium-iron-phosphate batteries (LFP, or LiFePO4) offers maintenance-free “maximum power delivery, maximum lifetime, voltage stability and intrinsic safety.” Smart circuitry ensures that the natural long life of LFP batteries is achieved in practice. Stromtank emphasizes that even during recharging, “you can listen without any interruption. Even if the Stromtank is connected to the grid, the current pulses are not directly removed from the grid; they are absorbed by the battery. . [with] little interaction between the grid and your audio/video setup. ”

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During a Zoom chat, Stromtank founder Wolfgang Meletzky (who, in fact, also founded MBL) explained the genesis and operation of the product. “I saw Tesla and other companies using stronger and better batteries — superior to lead batteries — and decided to build an audiophile power generator powered solely by a lithium-iron. -phosphate battery pack and good aluminum shield, which removes all impurities and delivers full sine wave amplitude and perfect frequency, ”he said. “If you move from one house or setup to another, you still have the same power. Stromtank gives you freedom from changing the grid — even from blackouts.

“Together with the Fraunhofer Institute of the German government, we have created a battery management system so that all batteries remain at the same level of voltage and energy. If you need a fast pulse for drums or etc., the batteries can supply this fast.each volume of voltage and current, measure the charge of each battery, and transfer the current from the stronger battery to the weaker one, if necessary, so that the current charge and energy stays constant, and you can create a strong pulse. ”


Footnote 1: Spoken, almost, “Shtrum’tonk.”

Footnote 2: Wolfgang Meletzky posted the following information too late to be included in the print version of this review. “There are three service ports located behind all Stromtanks. This makes it possible to perform the service remotely with our service engineers in Berlin, Germany.

• Service port 1 controls the DC/AC Converter
• Service port 2 controls the battery management system (BMS)
• Service port 3 for emergency charger

There are two different service devices. The ‘Service and Diagnostic Systems’ (SDS) is known as the ‘white box’ that controls the DC to AC converter at Service port 1 and the ‘Battery Service System’ box (BSS) is known as the ‘black box’ that controls the Battery over Service ports 2. Service ports can be used for software update, problem or malfunction detection, parameter change, performance check, battery check and so on. Most customer questions or problems can be resolved remotely. If the customer is unsure if there is a problem or if he has a problem he can call the service boxes from his dealer and we will log in for help.



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