Könner & Söhnen KS2000i S
(39 reviews)
A 2000W inverter generator in a soundproofed casing at 64 dB, delivering pure sine wave power ideal for sensitive electronic devices.
Characteristics
- Power: 2000 W max, inverter (pure sine)
- Engine: 4-stroke petrol, EURO V
- Outputs: 1 x 230V (16A) + 2 USB
- Soundproofed 64 dB casing, LED display, eco mode
Detailed overview: Könner & Söhnen KS2000i S inverter generator
The Könner & Söhnen KS2000i S is a portable inverter generator built around two major strengths: low noise and power quality. Housed in a closed, soundproofed casing, it reads just 64 dB (sound pressure level measured at 7 m), which makes it particularly suited to camping, outdoor leisure and residential use where noise is a concern.
Its maximum output of 2000W is delivered by inverter technology, which produces pure sine wave power. This is essential: you can safely power sensitive electronics such as a laptop, a smartphone, a television or a small fridge, without fearing the voltage spikes of a conventional generator.
The KS2000i S also stands out for its equipment: an LED display shows real-time operation (voltage, load, runtime), a fuel-saving mode automatically matches engine speed to the requested power, and the 4-stroke petrol engine meets the EURO V emissions standard. Connectivity includes a 230V socket (16A) and two USB ports to charge small devices directly.
Compact and fitted with a carry handle, it moves easily, though you should count a little over 20 kg. Its limits are typical of the category: a single 230V socket, which sometimes calls for a power strip, and 2000W to manage intelligently for the most demanding loads. For a quiet, well-equipped backup generator that is safe for electronics, the KS2000i S is a solid choice from Könner & Söhnen.
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Our tester's review: Christophe Delpuech
The KS2000i S won us over with its build quality and above all its quietness. In its closed casing it runs at a very contained noise level: a few metres away you almost forget it, which changes everything for camping or near a terrace. The LED display is a real plus day to day, you keep an eye on voltage and load rather than guessing. On the power side, the inverter technology does the job: we powered a laptop and chargers with no worry at all, the signal is clean and stable. The eco mode matches speed to demand, which limits consumption and noise when you only draw a few watts. It offers only one 230V socket, which sometimes means using a power strip, and at 2000W you have to stay reasonable with loads. At a little over 20 kg, it remains portable but you feel it. Overall, a quiet, well-finished inverter, perfect for anyone who wants clean power without waking the neighbours.
Frequently asked questions: Könner & Söhnen KS2000i S inverter generator
Yes, it is one of its strengths. Its closed, soundproofed casing limits the noise level to about 64 dB (measured at 7 m), and the eco mode further reduces noise at low load. It is much quieter than a conventional open-frame generator.
Yes. Its inverter technology delivers pure sine wave power, safe for sensitive electronics such as a laptop, a smartphone or a television.
It has one 230V socket (16A) and two USB ports. To power several devices on 230V, you may need to add a power strip, staying within the 2000W limit.
It delivers up to 2000W peak. That suits lighting, electronics and small appliances; for the most demanding loads, you should balance the connections.
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Published on 11/07/2026