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Kitronik High Power Stereo Amplifier Solder Kit - 3.5mm Jack lead

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Quoting product code: A57RJ


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About this product


  • Make a high powered amp with a 3.5mm jack input, on/off switch and volume control
  • Create an amp with 15W output per channel and 2 channels
  • Medium difficulty to solder with 26 parts

Product overview

• Make a high powered amp with a 3.5mm jack input, on/off switch and volume control
• Create an amp with 15W output per channel and 2 channels
• Medium difficulty to solder with 26 parts
• Includes a mains 12V power supply
• Designed and manufactured in the UK by Kitronik

What can I make with this kit?
This great amp kit (manufacturer code 2143-JK) is capable of producing up to 15 watts per channel and comes as a stereo (2 channel) system. Get volume and high quality sound from your devices with this 26 part kit. Just plug into a 3.5mm stereo socket (a standard small headphone socket) and listen to your music. This kit comes with a mains powered 12V power supply. An on/off switch, power LED and volume control are built into the kit.

What is in this kit?
Learn about electronics and circuits and practice soldering with this kit. The kit uses resistors, capacitors, potentiometers, LEDs, microchips and speakers. Learn how they are connected in a circuit and get practical experience soldering them. Use the components to create this amplifier and see how they come together in a circuit. The kit amplifies the voltage and current of the input signal with the amplifier integral chip and the potentiometer (or variable resistor) works as a volume control. The signal is then transferred to the speakers which translate it into sound. This kit requires soldering and may require wire cutters.

How difficult is this to solder?
This is a medium level of difficulty to solder, ideal for novices that want to challenge themselves or those with some experience. The finished kit includes everything you need, including two 8 ohm 100mm speakers, a 12V power supply heatsink and 3.5mm jack input. You can build your own enclosure (not included) to protect the electronics and make your own audio system.

Rated 5 out of 5 by from Mr I was very pleased with the Kitronik High Power Amp Kit with Jack Lead. I didn't think they would sound very good but after purchasing them and using them I found out that they where very good and brilliant quality. I would defiantly advise anyone who's thinking about buying them to get them.
Date published: 2014-11-04
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Operating Specifications


8 ΩΩ

Product Specifications

Soldering Required:


Dimensions & Weight





You mention a downloads tab for instructions. Where is it?

Asked by: Steveio1976
Please use the link below for the manual;
Answered by: James
Date published: 2017-08-28

Can you provide me some information on the Dual Potentiometer? Is it a linear or log, i know it's 10K Ω.

Asked by: NIKKI
Unfortunately, the only information we hold for the item can be found in the items manual in the downloads tab.
Answered by: Dominic
Date published: 2017-01-05

I've been having problems with getting sound out of the amps and i've isolated the problem to the dual potentiometer, where can i buy a replacement (and can you recommend an appropriate substitute?

Asked by: NIKKI
Unfortunately we are unable to recommend parts.
Answered by: Dominic
Date published: 2016-11-27

I am working on a project at home and i am interested in using this product. What are the specs of the "volume control"? Is it a dial or a wheel? And if it's a wheel, how easy would it be to sub. in a dial?

Asked by: NIKKI
This is dial.
Answered by: Dominic
Date published: 2016-11-07

Is there anyway that a bluetooth module can be connected to this 

Asked by: Leon
As much as we would love to be able to help here, as Technical Support Advisors we cannot offer design project advice or assistance, we are more than happy to locate products and support you with your purchases but we are not able to design entire circuits or projects for you. If you do have the design/circuit information detailing the value of the components needed we will be happy to locate these for you.
Answered by: Dominic
Date published: 2016-09-18

Is there anyway this could be battery powered (alkaline/Li-Ion), and if so do you sell the equipment to do that??

Asked by: pjt689
It is important to note that as a retail only company we are unable to assist with any design projects or queries, or advise on specific products that may be required for your purpose.
Answered by: Dominic
Date published: 2017-06-12

What is the diameter of the speakers?

Asked by: Aleksi
The diameter is 100mm You will find the all the physical dimensions for the speakers, as well as guidelines for the mounting holes on page 7 of the instruction manual provided under the downloads tab on this listing.
Answered by: Les
Date published: 2017-08-22
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