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.
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)
This kit is designed and manufactured in the UK by Kitronik.
hi, would this circuit work off a 12V 1.2A block power supply to then power two 4 ohm 25 Watt car speakers? Also when will it next be in stock?
Posted byon Wednesday, 18 January 2017
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.
Hi, I was wondering if it is possible to use this kit as an amplifier for my guitar.
Posted byon Friday, 9 December 2016
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.
I have bought two of these kits previously and they are fantastic. I have made them both into lead acid powered portable amps for my youth group and my son. They have been great for the past couple of years. I plug a CD player or MP3 player into the boards. Recently there seems to be an issue with the sound cutting out or distorted at higher volumes. A bit like when you used to 'blow' your speakers on old HiFi systems. The speakers though I think are OK so I reckon I have managed to damage one of the components perhaps by inputting at too higher a volume. Is this possible? I will happily buy the kits again but just want to know if it is possible to damage the IC/ciruitry. I will be more careful next time!
Posted byon Monday, 24 October 2016
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.
Can the two channels be 'bridged' to create a 30W mono amplifier? How would this be achieved? Would there be any limitations or potential problems with this? Thanks
Posted byon Monday, 1 August 2016
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.
For the above kit, what the is the biggest Watts speaker which it can be most efficient on? If it's pointless putting a 50watt speaker in this PCB, is there a PCB which can have a 100 watt and above? Thanks
Posted byon Tuesday, 14 June 2016
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.
Price From: Excl. VAT: £30.00 Incl. VAT: £36.00
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