Small, evil, patient, suddenly alive – it strikes when you do.
Same power and feel as a real valve amp, without the glass, heat or weight. Touch the strings and it breathes. Stop – and the snake waits, coiled and ready. It follows you – the Master!
TheSnake Charmer
It’s called King Cobra for a reason. Quiet, patient, and suddenly alive – it strikes when you do. This isn’t another little amp pretending to sound big. It actually runs on the same high voltage/power as real valve amplifiers, reacts the same way, but skips the glass, the heat and the headaches. What’s left is just the playing – pure and direct.
Touch the strings and it breathes. Hit harder and it pushes back. Stop – and the snake slips back into silence, waiting, coiled, ready to strike again the moment you are. That’s the idea – an amplifier that feels alive, not obedient.
The Himmelstrutz Amp Philosophy
At Himmelstrutz Elektro Art, our amplifiers are not about reinventing sound, but about evolving design. We hold onto the timeless tones and organic feel of valve amplifiers while introducing new philosophies that prioritise craftsmanship and reliability.
Design Philosophy
The goal is to preserve that rich, natural sound you crave, but with a modern approach that improves performance and usability. We carefully design and handcraft each amplifier, blending classic warmth with cutting-edge engineering to deliver an authentic, dynamic experience without unnecessary complexity. Our amplifiers don’t just sound like the revered valve amps – they also have the feel. What we provide is a balance of tradition and progression, proving big sound no longer needs big weight.
High Voltage, Real Feel
Magic piano bloom
That singing piano bloom when a note opens up starts with real voltage swing – real headroom. King Cobra holds the same alive feel as the classics, only tuned for what comes next.
Where the Feel Comes Alive
That piano-like bloom when a note opens up comes from real voltage swing and headroom – when the circuit can move instead of flattening out. Think of higher voltage the way engine people think of a longer stroke – the piston travels farther, builds more real pull, and responds with a different kind of authority. That’s what higher headroom feels like in an amp – more space for the note to form, bend and bloom before anything chokes it.
King Cobra carries the same expressive swing and give-and-take we love in great valve amps, but delivers it through a stable, discrete design with no glass, no heat and no waiting – that damned 30 to 48 seconds warm-up! Touch it lightly and it whispers immediately; dig in and it pushes back with the same classic movement.
Others talk about valve behaviour. King Cobra just lives it – the movement, the honesty, the bloom – only lighter, tougher and ready to go anywhere.
Neither Head Nor Combo
Compact, strong, and ready for any cab or pedal setup. Reverb or echo in front or loop – both work, just different attitude.
Format / Setup
Forget categories. King Cobra isn’t a head, and it isn’t a combo. It’s its own thing – compact, strong, and ready for whatever speaker or setup you like.
Drop it on your cab, keep it beside your pedals, even fit it on a pedalboard if you want.
Time effects, like reverb and echo, can go in front or through the serial loop. Both ways work beautifully, just with different attitude – one melts, the other stays clear.
Four Knobs, Two Switches
Gain, Lo, Hi, Vol set the voice and power; Pres. tames/adds top shimmer; Core shifts the power feel – 20/50/100 W, triode↔pentode.
King Cobra Controls
1 – UseGain,Lo,HiandVolto shape the voice.LoandHistay independent, each doing its job without muddy overlap.
2 – Flip thePres.(3-way mini-switch) to add or smooth the important shimmer.
3 –Core(3-way mini-switch) goes even deeper. It changes the amp’s character itself. Flip the switch and you’ll feel it: the response and compression shift like moving from a 20-watt to a 100-watt valve amp – or think triode to pentode – soft sag, tight punch, or full roar.
4 –Send & Return(serial loop): plug in delay/reverb here for the cleanest result. Put them before the amp for more blend and grit. Both ways work – different feel.
You’ll find all this faster by playing & joyfully adjusting than by being here reading numbers!
The Voice – Clean To Mean
British bite, American depth – both and beyond. Clean tones shimmer, driven tones growl. Pedals blend right in –Himmelstrutzor not.
Tone / Range
King Cobra moves through a huge span of tone – effortlessly. From shimmering clean to raw drive, it stays open, dynamic, and alive all the way. The Gain control doesn’t just add gain/overdrive or level; together with Lo, Hi and Vol it shapes how the amp breathes. Add the two mini switches – Core and Presence – and the character itself shifts: from gentle sag to tight punch, from soft bloom to glassy attack. Every setting finds its own groove, never losing touch or depth. There’s no dead zone, only smooth transition and response that follows your playing instead of forcing it.
King Cobra doesn’t choose between British or American – it speaks both languages, and things in between. It’s got the mid-focus and bite you’d expect from the Isles, but with the wider low end and openness of the West.
Together they become something broader, quicker, and fully touch-sensitive – a living, breathing animal that follows your hand instead of biting it.
Clean notes shimmer; driven tones grind without losing clarity. Pedals drop in like they belong –Himmelstrutzor not – because the foundation is already musical.
So, what’s the catch?
We looked for the trade-offs. Found the feel. Left the baggage behind.
Not replacing. Refining.
Valves defined the response — compression, push, honesty under your fingers. King Cobra keeps that behaviour, without the weight, fragility or warm-up time.
No heavy transformers. No glass bottles. Just high voltage and immediate reaction.
It’s not a reinvention. It’s refinement.
444 grams. Internal voltage: 333V. Small format. Full authority.
King Cobra Layout/Controls
JACKS
Input
Front:6.3 mm TRS instrument input (guitar or bass).
Speaker (≥4 Ω)
Rear:6.3 mm TRS speaker output.
Note:50 W @ 4 Ω. Higher impedances reduce output power.