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Description
kaluna pedal Vahlbruch Kaluna High Voltage Tube Overdrive PedalThe Valbruch KALUNA is a new and completely original design featuring an ECC83 12AX7 tube that is 100% pure analog tone! Operating at 250 volts, the dual triode tube circuit is powered by your standard 9V power supply, producing this very particular sweet harmonic content, overdrive clarity, fast pick attack response and complex compression, that we all love from cranked tube amps. The KALUNA is a super versatile, intuitive drive pedal with an
The Valbruch KALUNA is a new and completely original design featuring an ECC83/12AX7 tube that is 100% pure analog tone! Operating at 250 volts, the dual triode tube circuit is powered by your standard 9V power supply, producing this very particular sweet harmonic content, overdrive clarity, fast pick attack response and complex compression, that we all love from cranked tube amps. The KALUNA is a super versatile, intuitive drive pedal with an extremely open sound that's transparent with great dynamics. The gain characteristics from the KALUNA are organic and three dimensional, delivering mild breakup to creamy saturation.The KALUNA's unique circuit bears extraordinary touch sensitivity. Every musical nuance generated from your picking attack is exactly reproduced. The post tube, three band tone controls are extremely responsive, which is perfect for tailoring your tone to your specific gear and sound. The Vahlbruch KALUNA tube pedal definitely sounds different compared to solid state pedals and with its great clarity it will never mask the natural sound of your guitar and amplifier.
This pedal is equipped with my unique Magnetic Transducer Button = "MagTraB" switching technology:
Inside the button a magnet is integrated which position is measured by a sensor on the circuit board. If the button is now moved, e.g. if it is pressed downwards, the position of the magnet will also change. The sensor measures this change without any mechanical contact to the button and the information is send via a micro-controller to a gold-plated relay, which then does the actual audio signal switching. The advantages:
- MagTraB buttons are as good as indestructible!
- MagTraB delivers an almost infinite number of switching cycles - many, many millions!
- No annoying, mechanical switch clicks!
- Instead, the "MagTraB" push-buttons switch very smooth and quiet!
In only 4 steps you can choose if the pedal powers up in "true bypass" or "on"-mode:
- Step 1: Disconnect the power supply.
- Step 2: Hold down the "MagTraB" button.
- Step 3: Reconnnect the power supply, while remain pressing the "MagTraB" button.
- Step 4: Release the "MagTraB" button.
In order to undo the programming, simply repeat the steps 1-4. The next time your pedal powers up, it will automatically start in "on" in "true bypass" mode, just depending on what you have stored.
TECHNICAL SPECIFICATIONS:
- Sturdy and unique "MagTraB" switching technology
- New and completely original design featuring a ECC83/12AX7 tube that is 100% pure analog tone!
- The tube operating voltage of 250 volts is generated inside the pedal from your standard 9V power line.
- Intuitive DRIVE and VOLUME controls
- Extremely responsive, post tube, three band tone controls providing a boost/cut range of +/- 12dB
- The EQ is perfect for tailoring your tone to your specific gear and sound
- Input impedance: 1.0M Ohms, output impedance: 100 Ohms
- Current consumption: 500mA
- Dimensions: 120mm x 100mm x 48mm
- Weight: 375g
- Handmade in Germany
PLEASE NOTE:
This pedal requires an external regulated 9V/500mA power supply (optional). I recommend the BOSS PSA 230S or any other low noise power supply with the polarity: postive@ring / negative@tip. Do NOT supply this pedal with more than 9 volts!
During the tube warm-up period, the status LED will flash for 30 seconds while the pedal remains in bypass mode. After this the KALUNA is ready to go and the pedal can be activated.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.6 ★★★★★
Based on 1611 reviews
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Product Reviews
★★★★★ 5
Accurate and easy to use
Size: 3 kg - Normal Size, Size: 3 kg - Normal Size
At the moment, I can't think of anything I dislike about this scale.
The buttons are responsive, the measurements are accurate (I checked the readings with a couple of calibration weights from a scientific scale), the displays are clear.
Operation in daily use is very simple.
1. Turn on scale
2. After self test, place carafe and filter
3. Press "T" to tare
4. Add grinds
5. Press "||>" to weigh the grinds. This automatically tares the scale again and sets the timer to standby. It also activates the coffee to water ratio display
6. Add water and the timer automatically starts so you get a precise bloom time.
The added water is weighed and displayed as you pour and the coffee to water ratio display gives you an instantaneous reading, so you can brew your perfect cup of coffee each time.
The scale has a large capacity and precise resolution so it works for single small cups to large pots.
All in all, the best scale I've tried so far and might pick up another one when they go on sale (again).
Highly recommended.
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Reviewed in the United States on July 9, 2024
★★★★★ 5
Perfect!
Size: 3 kg - Normal Size
It works perfect. The product looks strong and looks so nice.
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Reviewed in the United States on April 15, 2026
★★★★★ 4
Mostly Great, But With One Problem
Size: 3 kg - Normal Size
Overall, this is a good scale and I do like it. However, it has one flaw that I'll mention later. First, the things I like. This is a nice looking scale. I like the design and the different colored displays for time and weights. The stainless steel on black is a classic look and very stylish in my opinion. The size is just right for brewing with French press or Chemex style brewers. It has a lot of plastic, but that is how all scales of this size are, especially in this price range. Having the ratio displayed is really nice. I use that about as much as looking at the grams during a pour over. I've also been using the automatic timing feature. I didn't think I'd like that, but it is actually quite useful. I've been using it for a month off of the first charge so I think that the battery life is good. Its also nice to be able to turn off the sound so I don't have to listen to beeping early in the morning when the rest of the family is sleeping. Being able to change the units of measure is great. I've weighed coffee, baking ingredients and even small packages prior to mailing them. It handles anything under 6 lbs. The display is sensitive and reads quickly. Which leads me to the one negative about this thing. When it is weighing room temperature items like beans or an empty brewer, its accurate and gives a steady reading. However, when you start introducing hot items (like brewing coffee which is what this is for) it starts to drop weight by 0.1g every 10 to 20 seconds. Even with the included silicone cover. I've added a cork trivet and another silicone pad under the brewer which didn't seem to help much. Eventually they warm up and the issue starts. Any raise in temp causes the unit to start lowering the weight as previously described. That's why I only gave it four stars. While this is annoying to see, it doesn't seem to mess with the overall brewing ratio or mess up my coffee brewing at all. By the time its doing this, I've usually made my pours and am in the 4 to 5 minute steeping period prior to finishing and decanting. At that point, I'm really only using the timer function anyway. Therefore, I didn't give it a lower rating since I like everything else about it and its not very expensive. All things considered, I think its a good value for the money and gets the job done.
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Reviewed in the United States on May 19, 2026
★★★★★ 5
Accurate and fits Breville bambino drip tray!
Size: 2 kg - Mini Size
Great mini scale! Fits smaller machine drip trays with out over hang. Very accurate!
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Reviewed in the United States on May 27, 2026
★★★★★ 5
Must have on kitchen
Size: 2 kg - Mini Size
It's exactly as described. Works great so far! I bought to make matcha 🍵 when measuring is quite important for the recipe, but also used for other measurements like yeast salt etc. Really great to have silicone mat for hot products, or just hot water that I use for matcha.
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Reviewed in the United States on June 1, 2026