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High Power Amp Kit

This Amplifier Kit can output up to 15W per channel (very loud) into a pair of high quality speakers. Available with either a 3.5mm Jack Lead or an iPod Lead.

Availability: In Stock.

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Product versions:

This product is also available in the following versions:

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High Power Amp Kit with Jack Lead
High Power Amp Kit with iPod Lead

Use the drop down list above to select your option. Price shown is GBP (ex VAT). Local currency price and price breaks (if applicable) will be shown once you have chosen an option.

Product description:

The High Power Amplifier kit from Kitronik can output up to 15W per channel into a pair of high quality speakers (included). The kit is capable of producing a very loud, high quality stereo sound. The kit includes all the parts required, including power supply, to build your own amplifier for use with items such as MP3 players.

Once assembled it has everything you would expect of an amplifier, a power LED, on/off switch and volume control. All you need to do is design your own enclosure.


  • 15W per channel amplifier.
  • Choice of iPod or 3mm jack cable.
  • High quality 20W full range speakers.


PCB Dimensions:

  • Length: 77.5mm.
  • Width: 59mm.




  • The heat sink will become hot when the amplifier is used at a high volume for long periods of time. For the heat sink to work at its best it should be mounted in a well ventilated case.
  • This product is supplied with a UK mains plug and is designed to work off a 230V, 50Hz supply.
  • Please note the iPod connecting lead is not the Lightning connector used on some Apple devices such as the iPhone 5. Adapters are available.
Haywood Academy Amplifier And Lamp Cases
Steve Fergusson, the Head of DT at Haywood Academy in Burslem Stoke on Trent, sent us some excellent examples of innovative student designs for Amplifier and Lamp cases. The cases were designed and made by GCSE and A Level Product Design students and display a high level of creativity in all of the Students involved.
High Power Stereo Amplifier in a Jerry Can
Jerry Rolfe sent us this image of an old army water can, which he has retro fitted with our High Power Stereo Amplifier. The amp is fitted to the back with the power lead feeding in through the bottom of the can and the 3.5mm jack lead leaving the top of the can. According to Jerry It sounds awesome!
High Power Amplifiers – Merchant Taylors’ School
We visited Merchant Taylors' School and we saw some amplifiers designed by some of the students using our High Power Amplifier Kits. We were very impressed with the range of upcycled materials that were used to design the case of the amplifiers.
High Power Amplifier Kit – Dan Thwaites
Dan Thwaites sent us these pictures of our High Power Amp kit inside a 1952 German valve radio that was no longer working. He took out the original components and installed the Amp kit. The volume control knob still works as he fitted the potentiometer to it and wired it back to the PCB. The dial faceplate was also originally backlit by two bulbs, so he replaced these with two white LEDs wired in parallel off the board. He also had to extend the power and headphone sockets to fit around the original chassis.
Oak High Power Stereo Amplifier Kit – James Stapling
James Stapling sent us these images of his oak high powered amplifier case. The cable tidies away into the box when not in use and it has a nice little oak volume control.
Gallery High Power Amplifier Case Design – Formarke Hall School
High Power Amplifier Case Design by Jake Smith, a year 8 student at Formarke Hall School.
Gallery Deluxe Amplifier – Meole Brace School
Deluxe Stereo Amplifiers by Meole Brace School Science College.
Gallery High Power Amplifier – Meole Brace School GCSE
High Power Amplifiers by GCSE students at Meole Brace School Science College.
How to use a 2-Way Passive Crossover
A crossover is the name given to a circuit that splits an audio signal into separate frequency bands. This allows different frequency bands of the output from an amplifier to be sent to different speakers instead of all being sent to one speaker.


Posted by Sam Speechley, Tuesday, 7 February 2017 on product High Power Amp Kit


Hi How would you recommend attaching a bluetooth receiver to this circuit? And if i can attach a bluetooth receiver how would i be able to attach the receiver to the same power supply as the amplifier? Thank you.


  • Posted by Michael Lockhart on Tuesday, 7 February 2017

    Hi Sam, We don’t currently sell a Bluetooth add on module, off-the-shelf modules do exist though and should come with instructions for connecting to an amplifier. However we do stock a Bluetooth amplifier which would be a better option,

Posted by Tom Corbey, Thursday, 26 January 2017 on product High Power Amp Kit


Hi, I need one of these kits for my GCSE project and see that you have said that they should be in by Feb but is there a way I can guarantee getting one by then as I will have to find another option if not? Thanks Tom


  • Posted by Michael Lockhart on Thursday, 26 January 2017

    Hi Tom, We are currently in the process of getting all the items combined into grip seal bags. We are currently expecting the item will be in stock early w/c 30/1/17. Depending on when you need the kit would depend on wheatear we could get it to you by your required date. Generally items that are in stock will be dispatched either via UPS on a next working day service or via First class royal mail, further details of delivery times can be viewed here,

Posted by tom hogg, Thursday, 26 January 2017 on product High Power Amp Kit


please can you give me the diameter of the speakers


Posted by Jane Delany, Monday, 16 January 2017 on product High Power Amp Kit


High Power Amp Kit When will this be back in stock? My son needs it for his GCSE project. Thanks


  • Posted by Michael Lockhart on Monday, 16 January 2017

    Hi Jane, We are currently awaiting a new batch of PCB’s from our supplier, we expect to receive these later this month and will hopefully have the item back in stock early February.

Posted by Jack Rawlinson, Wednesday, 11 January 2017 on product High Power Amp Kit


Hello my question is in connection with a previous question i noticed you said the product should be back by the 20th of December and i just went to buy this product and it says it is out of stock please tell me you will have stock soon.


  • Posted by Michael Lockhart on Wednesday, 11 January 2017

    Hello Jack, when the question was asked back on 20th of December it was the power supply that was out of stock. This time the issue is caused by the high powered amp kit components and PCB. We are awaiting an order for the PCBs and we estimate that the kit will be back in stock early February.

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