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3W Class D Stereo Amplifier

13.75
Exclusive to Kitronik
Teaching Notes
Key Stage 3
This Class D Amplifier Kit can output up to 3W in total. It runs from 3.2V to 5.5V, and comes with a 3.5mm jack lead and 2 full range speakers.

Availability: In Stock.

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2158£13.75
(£16.50 incl VAT)
£11.25
(£13.50 incl VAT)
£10.25
(£12.30 incl VAT)
OR

Our new 3W class D stereo amplifier offers great sound quality at a power level in between our Deluxe Stereo Amplifier Kit and our High Power Amplifier Kit.

The amplification is done by a PAM8008 3W amplifier IC, which offers excellent amplification when powered with anything from 5.5V all the way down to 3.2V, making it ideal for portable battery powered applications which require high quality stereo output.

The kit is supplied with a 3.5mm jack lead and 2 high quality, full range speakers, which are 5W and 65mm in size with corner mountings. The kit features a volume control & power LED as well as an on/off switch that switches between battery power, off and micro USB power.

Runs off 3x AA batteries or a micro USB power supply (used to charge many phones, tablets and e-readers).

Features:

  • Easily portable battery powered amplifier kit.
  • 3.5mm jack lead compatible with all standard audio equipment.
  • Full range speakers.

Contents:

Dimensions:

  • PCB Length: 66.5mm.
  • PCB Width: 38.5mm.

Video:

 

Requires:

Resources:

Buy British:

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

Physical characteristics:

  • PCB Length: 66.5mm.
  • PCB Width: 38.5mm.
  • PCB Component Count: 17.

Electrical characteristics:

  • Voltage Nominal: 5V.
  • Voltage Range: 3.2V - 5.5V.
  • Voltage Absolute Max: 6V.
  • Typical Standby Current: 70mA.
  • Current Maximum at Nominal Voltage: 600mA.

Questions:

Posted by john, Thursday, 23 February 2017 on product 3W Class D Stereo Amplifier
  • 0
    vote
    A:

    Hi John, Unfortunately none of our amplifier kits allow you to charge your device while playing music to it. If you are referring to the Basic - LiPo Micro-USB Charger, this is only suitable to charge 3.7V LiPo cells via the JST connect on the board.

    Posted by Michael Lockhart on Thursday, 23 February 2017
Posted by Maddie, Monday, 12 December 2016 on product 3W Class D Stereo Amplifier
  • 0
    vote
    A:

    Hi Maddie, Unfortunately as per my previous answer this amplifier kit hasn't got the circuity built in to allow it to charge either a phone, IPod or MP3 player. Sorry.

    Posted by Michael Lockhart on Monday, 12 December 2016
Posted by Robert, Friday, 9 December 2016 on product 3W Class D Stereo Amplifier
  • 0
    vote
    A:

    Hi Robert, You could use this to power the kit, however it is only likely to last maybe a couple of hours so before the voltage drops below the minimum of 3.2V’s.

    Posted by Michael Lockhart on Friday, 9 December 2016
Posted by james procter, Monday, 20 June 2016 on product 3W Class D Stereo Amplifier
  • 0
    vote
    A:

    Hi James, The 3W class D amp kit comes with the circuit board and all the parts have to be soldered onto this. If you’re looking for a pre-built kit then the highest output amplifier kit that comes pre-built is the Deluxe amp kit, https://www.kitronik.co.uk/c2141b-deluxe-stereo-amplifier-pre-built.html

    Posted by Michael Lockhart on Monday, 20 June 2016
Posted by Simon Wood, Thursday, 16 June 2016 on product 3W Class D Stereo Amplifier
  • 0
    vote
    A:

    You could swap the LED out for any of the following which are direct replacements and would need the resistor changing, 3504, 3506, 3567, 3543, 3542. The last two codes would only need a resistor value of 150 Ohm, however keeping the 220 Ohm resistor would be fine. With regards to the switch it is possible to swap this for a different one, however you would need to ensure that it has the same pins as the one supplied in the kit, here is a link to the datasheet, https://www.kitronik.co.uk/pdf/3427_datasheet.pdf

    Posted by Michael Lockhart on Thursday, 16 June 2016
Posted by Simon Wood, Tuesday, 14 June 2016 on product 3W Class D Stereo Amplifier
  • 0
    vote
    A:

    Yes the LED switch and volume control are fine to be put on flying leads. As long as they are connected up in the same way as they would on the board then it will be fine. Unfortunately you are correct the USB charger is pre-mounted onto the board.

    Posted by Michael Lockhart on Tuesday, 14 June 2016
Posted by Haukur Þórðarson, Monday, 9 May 2016 on product 3W Class D Stereo Amplifier
  • 0
    vote
    A:

    Unfortunately we can only supply the kit as it is shown on the website, we are unable to provide a speaker less option.

    Posted by Michael Lockhart on Monday, 9 May 2016
Posted by Susie, Thursday, 21 April 2016 on product 3W Class D Stereo Amplifier
  • 0
    vote
    A:

    You would just need to check the speakers in parallel on each channel. You would need to make sure that the speakers you are using are 8Ohm’s, so when they are connected in parallel they give a 4Ohm load.

    Posted by Michael Lockhart on Thursday, 21 April 2016
Posted by Callum, Wednesday, 30 March 2016 on product 3W Class D Stereo Amplifier
  • 0
    vote
    A:

    The main reason for this would be that the GND pin on the input connector either has a dry joint or is incorrectly located on the board. Also it may be that the connection on the speakers from the wire is lose and this needs to be soldered on to ensure a solid connection.

    Posted by Michael Lockhart on Wednesday, 30 March 2016
Posted by hazamat, Tuesday, 15 March 2016 on product 3W Class D Stereo Amplifier
  • 0
    vote
    A:

    The speakers on this kit are a good way to improve sound quality without a large price tag, as such they are good quality full range speakers. The only information we have regarding the decibel reading is the following, Mean sound pressure level: 86 dB (1W/1m)

    Posted by Michael Lockhart on Tuesday, 15 March 2016
Posted by Nathan Dundas, Wednesday, 10 February 2016 on product 3W Class D Stereo Amplifier
  • 0
    vote
    A:

    Hi Nathan, do you mean can you have 4 speakers connected to this kit? If that’s what you mean you could connect 2 8Ohm speakers per channel in parallel which would give a 4Ohm load per channel which is what this kit is designed to run.

    Posted by Michael Lockhart on Wednesday, 10 February 2016
Posted by jon, Thursday, 7 January 2016 on product 3W Class D Stereo Amplifier
  • 0
    vote
    A:

    The diameter of the speaker including the metal frame is 65mm, as such the radius is 32.5mm.

    Posted by Michael Lockhart on Thursday, 7 January 2016
Posted by Idrice, Monday, 9 November 2015 on product 3W Class D Stereo Amplifier
  • 0
    vote
    A:

    None of our project kits have the facility to charge a device as this can be a very sensitive process. We don't currently make a bluetooth add on module, off-the-shelf modules do exist though and should come with instructions for connecting to an amplifier.

    Posted by Michael Lockhart on Monday, 9 November 2015
Posted by Sam Cherry, Monday, 20 July 2015 on product 3W Class D Stereo Amplifier
  • 0
    vote
    A:

    Yes you can use a 1/4" Female Jack input instead of the male 3.5mm that is supplied with the kit, however we are not able to swap this with in the kit.

    Posted by Michael Lockhart on Monday, 20 July 2015
Posted by Jack, Monday, 15 June 2015 on product 3W Class D Stereo Amplifier
  • 0
    vote
    A:

    The 3W class D stereo amplifier kit comes with a pre-mounted Micro USB connector on the board, this means you can use a Micro USB power supply. The one we recommend using is the following https://www.kitronik.co.uk/2208-5v-1a-micro-usb-uk-mains-wall-power-supply.html this will just plug straight into the connection that is one the PCB.

    Posted by Michael Lockhart on Monday, 15 June 2015
Posted by Tom Brogan, Thursday, 9 October 2014 on product 3W Class D Stereo Amplifier
  • 0
    vote
    A: You would have to give it a try, but there is no reason why if you connect the three 'input' connections from one board to the other board that you wouldn't get them both producing the same audio. This wouldn't give you any better quality of audio, though the volume would be louder, or would be of benefit if you needed the speakers to be in a different place. If you are wanting to do this just to increase the volume then the 15W+15W high power amp might be a better option.
    Posted by Geoff Hampson on Thursday, 9 October 2014
Posted by Phil, Monday, 6 October 2014 on product 3W Class D Stereo Amplifier
  • 0
    vote
    A: Both the amplifier IC and the speaker used on the 3W amplifier is better quality than the deluxe stereo amplifier so naturally the sound quality is better on the more expensive 3W version. Yes you could just connect one speaker to the amplifier if you only want a mono amplifier.
    Posted by Geoff Hampson on Monday, 6 October 2014
Posted by Mark, on product 3W Class D Stereo Amplifier
  • 0
    vote
    A: Hi Mark, although we haven’t directly tried this our self it should be possible with a few slight changes. The audio out of the radio IC is a lot lower than a line signal, so you would need to use the on board amplifier as a pre-amp to get the output to about 1V. Follow the assembly instructions except don't add the speaker to the FM radio. Instead connect the audio connector signal wire to one of the speaker connections, it wants to be the speaker connection pin next to the speaker text. Then connect the ground on the audio connector to the negative power connection on the board. Set the volume fairly low and you’re ready to give it a try
    Posted by Michael Lockhart on Tuesday, 23 May 2017

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