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Description
Stetsom HL 400.4Stetsom HL 400. 4 Der Stetsom HL 400. 4 ist ein kompakter 4 Kanal Fullrange Verstrker fr vielseitige Car HiFi Anwendungen mit hoher Klangqualitt und effizienter Leistung. Mit 400 Watt RMS eignet sich die Endstufe ideal fr Front und Rearsysteme, Mittelton und Hochtonanwendungen sowie kleinere Subwoofer Setups im Stereo oder Brckenbetrieb. Dank moderner brasilianischer Class D Technologie berzeugt die HL 400. 4 mit hoher Effizienz, sauberer
Stetsom HL 400.4
Der Stetsom HL 400.4 ist ein kompakter 4-Kanal Fullrange-Verstärker für vielseitige Car-HiFi-Anwendungen mit hoher Klangqualität und effizienter Leistung. Mit 400 Watt RMS eignet sich die Endstufe ideal für Front- und Rearsysteme, Mittelton- und Hochtonanwendungen sowie kleinere Subwoofer-Setups im Stereo- oder Brückenbetrieb.
Dank moderner brasilianischer Class-D-Technologie überzeugt die HL 400.4 mit hoher Effizienz, sauberer Signalverarbeitung und dynamischer Klangwiedergabe über den gesamten Frequenzbereich. Der erweiterte Frequenzgang bis 26 kHz sorgt für klare Höhen, präzise Mitten und kontrollierten Bass.
Die integrierten High-Pass-, Low-Pass- und Fullrange-Funktionen ermöglichen eine flexible Anpassung an verschiedenste Lautsprecherkonfigurationen. Zusätzlich verfügt der Verstärker über RCA- sowie High-Level-Eingänge und kann dadurch problemlos sowohl mit Nachrüst- als auch Werksradios kombiniert werden.
Durch die kompakte Bauweise und die hohe Leistungsdichte eignet sich die Stetsom HL 400.4 perfekt für platzsparende Installationen, ohne dabei auf Leistung oder Klangqualität verzichten zu müssen.
Technische Daten:
- Modell: Stetsom HL 400.4
- Kanäle: 4
- RMS-Leistung: 400 W RMS
-
Minimale Ausgangsimpedanz:
- Stereo: 2 Ohm
-
Brücke: 4 Ohm
Leistung bei 14,4 V
- 4 × 100 W RMS @ 2 Ohm (Stereo)
- 4 × 62 W RMS @ 4 Ohm (Stereo)
-
2 × 200 W RMS @ 4 Ohm (Brücke)
Leistung bei 12,6 V
- 4 × 85 W RMS @ 2 Ohm (Stereo)
- 4 × 52 W RMS @ 4 Ohm (Stereo)
-
2 × 170 W RMS @ 4 Ohm (Brücke)
Weitere technische Daten
- Versorgungsspannung: 9 V – 15 V DC
- Frequenzgang: 19 Hz – 26 kHz
- Low-Pass-Filter: 90 Hz
- High-Pass-Filter: 90 Hz
- Signal-Rausch-Verhältnis: > 90 dB
- Klirrfaktor (THD): > 0,3 %
-
Eingangsempfindlichkeit:
- RCA: 200 mV
- High Input: 1,5 V
-
Eingangsimpedanz:
- RCA: 15 kOhm
- High Input: 1 kOhm
- Stromaufnahme Musiksignal: 20 A
-
Stromaufnahme Basssignal: 40 A
Anschlüsse & Features
- 4-Kanal Fullrange Class-D Verstärker
- RCA- und High-Level-Eingänge
- Umschaltbar zwischen HPF / LPF / FULL
- Stereo- und Brückenbetrieb möglich
- Geeignet für: Frontsysteme, Mittelton-, Hochton- und kleinere Subwoofer-Anwendungen
- Schutzschaltungen gegen Überhitzung, Kurzschluss und Spannungsschwankungen
Abmessungen & Gewicht
- Abmessungen (H × B × L): ca. 5,4 × 11,3 × 16,3 cm
-
Gewicht: ca. 0,7 kg
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Exchange/Return Notes
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4.8 ★★★★★
Based on 1321 reviews
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Product Reviews
★★★★★ 4
A Must-Read for the Internet Age (Even If It’s a Little Terrifying)
Format: Kindle
If you’ve ever found yourself doomscrolling through Twitter (sorry, X—ugh), arguing with a stranger in the comments section, or wondering why that ridiculous meme is suddenly everywhere, LikeWar is the book that explains why. And let me tell you, it does so in a way that’s as entertaining as it is unnerving.
P.W. Singer and Emerson T. Brooking take a deep dive into the battlefield of social media, where wars aren’t just fought with bullets but with hashtags, viral videos, and AI bots pretending to be real people (or worse, real people pretending to be bots). They connect dots between everything from military psy-ops to online disinformation campaigns, showing how social media has become the new frontline of modern warfare.
The book is packed with fascinating stories—from ISIS using social media to recruit followers like an influencer pushing protein powder, to political campaigns that make you question reality itself. And while the subject matter is serious, the authors keep things engaging with sharp writing, eye-opening insights, and just enough humor to keep you from spiraling into existential dread.
So why four stars instead of five? Well, while LikeWar is undeniably eye-opening, it occasionally gets a little too caught up in explaining things at length. Some sections feel a bit stretched, like that one friend who insists on telling a story with every single detail included. A tighter edit in some places might have made it even stronger.
That said, this book is a must-read for anyone who wants to understand how the internet shapes the real world—whether you’re a journalist, a policymaker, or just someone trying to figure out why your uncle keeps sharing weird conspiracy theories on Facebook. It’s insightful, timely, and slightly terrifying, but in the best way possible.
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Reviewed in the United States on March 17, 2025
★★★★★ 5
A Must Read That Belongs on Every Political, Social, or Military Strategist's Shelf
Format: Hardcover
LikeWar is the manual for warfare in the 21st century, a worthy successor to Singer's Ghost Fleet, and excellent debut work for Brooking. It belongs on the shelf of anyone who wants to seriously understand how war will be fought and social policy developed in the era of Facebook and Twitter.
There is a particularly urgent need for this book at a time when most tacticians have their eyes firmly fixed on enhancing cybersecurity through the protection of systems and hardware. While this is undeniably important, LikeWar reminds us that the information that is transmitted over that infrastructure is no less, and possibly quite a bit more important than the infrastructure itself. This message has never been more urgent than today when democratic nations struggle with balancing the need for an open civil society against the risks of foreign subversion and influence. This is the next great battle. It will be fought in the trenches of Facebook and the swamps of Twitter - wise commanders will bring LikeWar with them as field guide.
LikeWar stands out for its incredible scope and accessibility. Its coverage is comprehensive - everything from the 2016 election to the IDF's influence tactics are explored, analyzed, and fit into a comprehensive thesis about the changing face of war. Read LikeWar and you will have a confident grasp of the major developments in this new theater of combat. Yet the book remains eminently readable - this combat guide does not require a reader to slog through the bone-dry prose of a TRADOC manual or an academic paper. It is quick and engaging yet thorough at the same time.
In short, Singer and Brooking have written a manual for combat in the new millennium that is both engaging and substantial enough to leave their reader a master of the new face of battle.
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Reviewed in the United States on October 3, 2018
★★★★★ 5
Its Good!
Format: Paperback
Move over action-packed thrillers, because LikeWar is the real deal – a mind-bending exploration of the internet's collision with war and politics! It's like a rollercoaster ride through livestreamed terrorist attacks, Twitter wars, and viral misinformation – the online world has become the ultimate battleground!
Who knew that social media could turn average folks into global warriors, with former World of Warcraft addicts foiling war crimes from thousands of miles away? And let's not forget the unexpected warriors – rapper-turned-jihadist PR czars and Russian hipsters waging infowars against the West – it's like a cyber soap opera!
But wait, there's more – China even has a smartphone app to police its citizens' thoughts – talk about big brother on steroids! LikeWar is like a crash course in the web's darkest corners, exposing the truth and burying it at the same time. So buckle up, folks, because the future is networked, and LikeWar is the ultimate guide to surviving the social media battlefield!
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Reviewed in the United States on July 26, 2023
★★★★★ 5
Out of Control with Technology
Format: Hardcover
I found the book very interesting! The authors did a great job of discussing the benefits of different social media sites. While the sites were intended for good use, there is always a downside. Each of the sites were exploited over time for a use other than intended. While this is by no means a surprise, it is amazing how others were quick to use the sites for illegal purposes. The history of how some of the sites were developed was interesting too. Of additional interest was the amount of notes included in the book. A third of the book is devoted to this alone. It shows the level of thoroughness the authors took to allow readers to delve deeper into topics discussed in each chapter. The most pressing question for social media: What is the next level of advancement?
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Reviewed in the United States on July 28, 2024
★★★★★ 5
All's fair in Like and War
Format: Hardcover
Is Mark Zuckerberg responsible for exacerbating the killing fields on the South Side of Chicago? What is China's Golden Shield Project and what might it mean for you? Did Michael Flynn have any good ideas before his fall from grace serving in the Trump administration? Read this book and you'll get the answers to these questions and many more.
This book takes a notion with which most readers are likely already familiar - the internet has graduated from its nascent status as a series of tubes connecting nerds and defense contractors to that of an ineffably complex globe-gobbling organism engaged every hour of every day in the instantaneous distribution of information spanning all spectra of human activity - and combines it with one not so well established in the popular imagination - we (or, at least, everyone who uses the internet) are all potential foot soldiers, willing or not, in the online and offline wars still raging as well as those yet to come.
Written in succinct, snappy prose, the book tells the story of the internet from its peculiar vantage point at the intersection of social media and military conflict with its arguments firmly based in factual and expert analysis. Those seeking to validate a particular political slant or ideology should look elsewhere.
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Reviewed in the United States on October 2, 2018