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High Power Amp Kit (PCB & Components)

12
Exclusive to Kitronik
Teaching Notes
Key Stage 4
The High Power Amp Kit can output up to 15W per channel. It includes all of the components required to build the PCB. PSU, speakers and cable are not included.

Availability: In Stock.

Code1+ 5+ 50+
2143K£12.00
(£14.40 incl VAT)
£10.50
(£12.60 incl VAT)
£9.50
(£11.40 incl VAT)
OR

This amplifier kit can output up to 15W per channel into a pair of high quality speakers. The kit is capable of producing a very loud, high quality stereo sound. The product includes all the components required to build the PCB, but not a power supply, speakers or cable to connect it to audio equipment. A complete version with the speakers, power supply and audio cable is available as a complete kit.

It features a power LED, on / off switch and volume control.

This kit includes:

  • 1 x Printed circuit board
  • 1 x TDA7297 audio amplifier IC
  • 1 x Heat sink
  • 1 x M3 nut and bolt
  • 1 x 10Kohm dual potentiometer
  • 2 x 47Kohm resistors
  • 1 x 1Kohm resistor
  • 1 x 1N5400 diode
  • 1 x Blue LED
  • 1 x 470uF capacitor, electrolytic
  • 1 x 10uF capacitor, electrolytic
  • 1 x 100nF capacitor, ceramic disc
  • 2 x 220nF capacitor, ceramic disc
  • 1 x Right angle PCB mounting power switch (high current)
  • 3 x Two way terminal blocks
  • 1 x Panel mounting DC power socket

PCB dimensions: 77.5mm x 59mm. Four mounting points are available, one in each corner.

This kit requires soldering.

Click here to download the essential information pdf_icon.gif

Click here to download the full teaching resources pdf_icon.gif

Note: 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.

You may also wish to buy some of the following items: (if you are buying all of them then it will be cheaper to buy the version with all the parts)

Buy British:

 This kit is designed and manufactured in the UK by Kitronik.


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Questions:

Posted by priten chauhan, Wednesday, 18 January 2017 on product High Power Amp Kit (PCB & Components)
  • 0
    vote
    A:

    Hi priten, The kit is designed to be run from 2A when a power supply of 12V’s is used, as such using a lower current supply may either prevent the circuit from working or not allow the circuit to work correctly. There is also a chance the kit will try to draw more current than the power supply can supply and could cause an issue. We are looking at having the item back in stock during w/c 30/1/17.

    Posted by Michael Lockhart on Wednesday, 18 January 2017
Posted by Odiel De Potter, Friday, 9 December 2016 on product High Power Amp Kit (PCB & Components)
  • 0
    vote
    A:

    Hi Odiel, Yes it should be fine to connect this kit straight up as a guitar amplifier as it has a built in volume control on the board.

    Posted by Michael Lockhart on Friday, 9 December 2016
Posted by R Hedge, Monday, 24 October 2016 on product High Power Amp Kit (PCB & Components)
  • 0
    vote
    A:

    Hi,

    It is unlikely through normal use to do that. I have emailed you to ask you for some more information to see if we can get to the bottom of it for you.

    Posted by Rob Haywood on Monday, 24 October 2016
Posted by Les Hanna, Monday, 1 August 2016 on product High Power Amp Kit (PCB & Components)
  • 0
    vote
    A:

    Hi Les, although it is technically possible to do this we highly recommend not doing it as if it is wired up incorrectly it can cause serious damage to both the speaker and amplifier kit. This is due to the voltage that each channel will try and output too, if one goes slightly higher than the other they will constantly try to match the voltage and as such can force the voltage passed the maximum point as they are in constant conflict.

    Posted by Michael Lockhart on Monday, 1 August 2016
Posted by Robert Walker, Tuesday, 14 June 2016 on product High Power Amp Kit (PCB & Components)
  • 0
    vote
    A:

    This is the most powerful speaker kit that we make, it can output 15W per channel. As such a 20W speaker would be idea for this, anything over this would be fine but you wouldn’t get the most from the kit. Unfortunately we don’t have an amp kit that can output any more than this.

    Posted by Michael Lockhart on Tuesday, 14 June 2016
Posted by Boyd, Friday, 4 March 2016 on product High Power Amp Kit (PCB & Components)
  • 0
    vote
    A:

    It would be difficult to obtain the setup you are looking to create. It would be easier to use 2 woofers and 2 tweeters connected to 2 crossovers, one tweeter 1 woofer one each crossover. This link shows how this can be connected, https://www.kitronik.co.uk/blog/use-2-way-passive-crossover/  

    Posted by Michael Lockhart on Friday, 4 March 2016
Posted by Basil Batov, Friday, 29 January 2016 on product High Power Amp Kit (PCB & Components)
  • 0
    vote
    A:

    Yes it would be possible to connect this to a Bluetooth module, we have looked into designing a possible Bluetooth speaker, however we are still at the early development stage of this.

    Posted by Michael Lockhart on Friday, 29 January 2016
Posted by Luke, Thursday, 16 July 2015 on product High Power Amp Kit (PCB & Components)
  • 1
    vote
    A:

    Although it is technically possible to run this kit off batteries you would only get around 1 hour from 8XAA batteries as the kit takes 2A at 12V on full volume. A high capacity lead-acid sealed battery may well be able to power it for a long time though.

    Posted by Michael Lockhart on Thursday, 16 July 2015
Posted by Andrew [solved], Friday, 30 January 2015 on product High Power Amp Kit (PCB & Components)
  • 0
    vote
    A:

    Glad to hear you have sorted the issue. Sorry you had a faulty switch with the product.

    Posted by Michael Lockhart on Friday, 30 January 2015
Posted by Andrew, Thursday, 29 January 2015 on product High Power Amp Kit (PCB & Components)
  • 0
    vote
    A:

    The best option is for you to send a picture of the top and bottom of the circuit board, and also of the connections on to the speakers. If you send them to support@kitronik.co.uk we will have a look into the issue.

    Posted by Michael Lockhart on Thursday, 29 January 2015
Posted by Stacey, Thursday, 4 December 2014 on product High Power Amp Kit (PCB & Components)
Posted by Oliver Lowe, Tuesday, 28 October 2014 on product High Power Amp Kit (PCB & Components)
  • 0
    vote
    A: This amplifier is designed to drive an 8 Ohm load. That is one 8 Ohm speaker on each channel.
    Posted by Aaron Sturman on Tuesday, 28 October 2014
Posted by Paul Featherstone, Thursday, 31 July 2014 on product High Power Amp Kit (PCB & Components)
  • 0
    vote
    A: Hi, You could add more speakers but it wouldn't alter the volume very much. The limiting factor is the output power of the IC. You could run this kit from 12V of batteries but it draws up to 2A so it will flatten standard batteries pretty quickly. A high capacity lead-acid sealed battery may well be able to power it for a long time though.
    Posted by Aaron Sturman on Thursday, 31 July 2014
Posted by Brandon, Tuesday, 19 November 2013 on product High Power Amp Kit (PCB & Components)
  • 0
    vote
    A: We do our best!
    Posted by Aaron Sturman on Tuesday, 19 November 2013
Posted by Olli, Monday, 22 April 2013 on product High Power Amp Kit (PCB & Components)
  • 0
    vote
    A: The schematic can be found in the teaching notes, which can be downloaded from the product page or from the following link. https://www.kitronik.co.uk/files/5513/4184/7468/2143_-_High_power_stereo_amplifer_build_instructions_V1_0_web.pdf
    Posted by Aaron Sturman on Monday, 22 April 2013
Posted by Paul, Thursday, 11 April 2013 on product High Power Amp Kit (PCB & Components)
  • 0
    vote
    A: The system is only designed to run two speakers, one per channel. You could add an additional speaker per channel but they would likely interfere with each other and cause problems. The maximum power the amp can deliver is around 15W per channel so the additional speakers would not increase the total volume.
    Posted by Aaron Sturman on Thursday, 11 April 2013

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