Who we are
KARTAKOU – is a tiny team, specializing in designing and manufacturing guitar electronics: preamps, effects pedals, guitar amplifiers, etc. We create our products to bring you the best experience of playing your instrument.
The things Vasili was doing for fun as a teenager evolved into this project in 2006, the year he made his first pedal. Having graduated and worked as an engineer for a few years, he came to the thought that it was time to turn his teenage hobby into something greater. This is the story of how KARTAKOU amplification launched in 2013.
We're constantly working on designing new devices and upgrading the existing ones. Follow KARTAKOU on Instagram, Facebook, and YouTube for news and updates.
The things Vasili was doing for fun as a teenager evolved into this project in 2006, the year he made his first pedal. Having graduated and worked as an engineer for a few years, he came to the thought that it was time to turn his teenage hobby into something greater. This is the story of how KARTAKOU amplification launched in 2013.
We're constantly working on designing new devices and upgrading the existing ones. Follow KARTAKOU on Instagram, Facebook, and YouTube for news and updates.
Shipping
We ship out our devices worldwide through the International Priority Air Mail service. All paid orders are shipped the next business day, and a valid tracking number is provided with each order.
Your order will be delivered to your location by your national post operator (e.g. USPS for the USA, Australia Post for Australia, DHL for Germany, etc.).
Orders usually arrive within 2-4 weeks, and during peak seasons like New Year or Black Friday, some orders may take longer to arrive.
EU customers: Colossus and Beastbox preamps are shipped via DPD from Vilnius, LT, without additional VAT or import fees.
Your order will be delivered to your location by your national post operator (e.g. USPS for the USA, Australia Post for Australia, DHL for Germany, etc.).
Orders usually arrive within 2-4 weeks, and during peak seasons like New Year or Black Friday, some orders may take longer to arrive.
EU customers: Colossus and Beastbox preamps are shipped via DPD from Vilnius, LT, without additional VAT or import fees.
Returns
Please note that you can return your device within 14 days of receiving it. However, we cannot accept returns requested after 14 days.
Refunds will be issued using the original payment method and only for items in like-new condition. In case the items are not in like-new condition, a 30% restocking fee may be applied.
Please note that refunds may take up to one week to be processed.
Refunds will be issued using the original payment method and only for items in like-new condition. In case the items are not in like-new condition, a 30% restocking fee may be applied.
Please note that refunds may take up to one week to be processed.
I have a question
We'll use this email only for conversation. Subscribe on news and updates below.
Kartakou Cobblestone Power Amplifier
During your band rehearsals, you may notice that your guitar rig sounds different when plugged into various amplifier stacks. Even the most expensive heads seem to modify your tone, which may ruin the creative process and drive away your muse far beyond the horizon.
I wanted to solve this problem, so I spent months designing a portable amp that would have no disadvantages.
The result is Cobblestone - a universal guitar power amplifier delivering 45 watts in a small, pedal-sized housing. Cobblestone works remarkably well with any pedalboard, effects processor, or preamp, and can drive any load starting from 4 Ohms which other popular portable amps can’t.
The amp produces 45 watts of pure, clean power, making it perfect for home practice, rehearsal, or small gigs. It carefully amplifies your tone, preserving even the subtlest details without altering your sound.
Cobblestone sounds great at both low and high volumes, delivering a solid punch no matter how loud you play.
Cobblestone Identities
Actual Power
Cobblestone delivers clean and punchy 45 watts of actual power continuously.
Compact Size
The amplifier is designed with standard pedal size dimensions, making it compatible with even the smallest pedalboards.
Omnivorous Load
Cobblestone is compatible with loads starting at 4 Ohms. Anyway, an 8-ohm cabinet is recommended for optimal performance.
Tone Slider
Each guitar setup has its unique structure. Adjust nuances by moving the tone control slider up or down. The slider has no effect on the tone in the center position.
Safe Operation
CobbleStone has built-in electronic protection and is safe to use when unloaded. If a fault occurs, a "Limit" indicator will appear and all outputs will be instantly disabled.
Hand Built
We believe machines are good. However human beings are unbeatable. Handcrafting adds a certain feel to every assembled device. All of our creations have lots of human work.
Kartakou Amplification Cobblestone Amplifier
Cobblestone Controls and Connection
Connections
Sig - plug in your guitar/processor/pedalboard here using a TS 1/4 cable.
AUX - plug in a backtrack here using a TRS 1/8 cable.
Cab - connect the guitar cabinet here using 1/4 TS cable.
Power - plug in the power adapter here.
Controls
Tone - adjust your tone with this slider. Upper is brighter, and bottom is darker.
Master - sets the output volume. Right is more, left is less.
Sig - plug in your guitar/processor/pedalboard here using a TS 1/4 cable.
AUX - plug in a backtrack here using a TRS 1/8 cable.
Cab - connect the guitar cabinet here using 1/4 TS cable.
Power - plug in the power adapter here.
Controls
Tone - adjust your tone with this slider. Upper is brighter, and bottom is darker.
Master - sets the output volume. Right is more, left is less.
Cobblestone Specification
Dimensions
Cobblestone sizes are 113*61*35 mm, and weight is 0.240 kg
Power adapter sizes are 125*55*33 mm, and weight is 0.210 kg
Power Supply
Cobblestone runs on a DC 24V 3A power supply (AC 100-240 V / 50-60 Hz input).
Don't use different output voltage power adapters. This may damage the amp.
Warranty
Cobblestone comes with a 2-year full warranty.
Cobblestone sizes are 113*61*35 mm, and weight is 0.240 kg
Power adapter sizes are 125*55*33 mm, and weight is 0.210 kg
Power Supply
Cobblestone runs on a DC 24V 3A power supply (AC 100-240 V / 50-60 Hz input).
Don't use different output voltage power adapters. This may damage the amp.
Warranty
Cobblestone comes with a 2-year full warranty.
Cobblestone Bundle
- Cobblestone Amplifier
- Power Adapter
- AUX cable
Cobblestone Shipping
We ship all our devices using the International Shipping service for all orders. Once the package reaches your country, your national post service, such as USPS for USA, Royal Mail for England, or Australian Post for Australia, will take over the delivery.
The shipping period usually takes 2-3 weeks to reach any destination. To avoid any unwanted customs expenses, we can declare your package with a low value. Please inform us if this is important to you.
We ensure that the Cobblestone is packed with utmost care and responsibility, and it comes with a valid tracking number. You can track your package's progress on 17track.net through their web or mobile app.
The shipping period usually takes 2-3 weeks to reach any destination. To avoid any unwanted customs expenses, we can declare your package with a low value. Please inform us if this is important to you.
We ensure that the Cobblestone is packed with utmost care and responsibility, and it comes with a valid tracking number. You can track your package's progress on 17track.net through their web or mobile app.