Justblairs Audio and Electronic's Pages

The Sure Electronics Tripath TA2024 Board is out of the box a good value for money amplifier module. However with some careful tweaking it can be made to sound better. This article focuses on the power supply to the Tripath chip and shows some improvements that can be made.

So far I have modified several aspects of the Sure TA2024 board. In this article I look again at the input to the device and swap over the input capacitor.

The Sure Electronics TA2024 Amplifier impressed on my first inspection although suffered from Poor DC offset and a slightly dull sound. This is the second modification I have made which is aimed at improving the top end sound of the amp.

In in another article, I showed how the Sure Tripath Boards unacceptable DC could be reduced significantly by removing a pair of resistors from the PCB effectively disabling Sure's attempt at a DC offset reducing circuit.  This article takes the modification a step further to eliminate DC offset completely.

In the last article we looked at the Sure TA2024 amplifier boards, fresh from their box. Amongst the issues identified is that the Sure boards have an issue with DC offset. This article shows how with a very quick modification the DC offset of the boards can be improved upon.

The Sure Tripath amplifiers offer a Tripath 2024 chip Class T amplifier for $22 plus shipping from Najing, Jiangsu, China.  So what do you get for roughly £15 of amp?

Already on www.justblair.co.uk we have looked extensively at a brilliant amplifier from Sure Electronics.  The Tripath TA2024 board is a cost effective, high quality amplifier board that in stock form offers value and with a few tweaks can offer serious performance.  It was with great interest that I awaited a sample of the recently released “Big Brother” to this amplifier… The Sure 2*100 watt @ 4ohm TK2050 Class-D Audio Amplifier Board (product code: AA-AB013). Well it’s here in my grubby mitts and today I managed to find some time to give it an initial listen.

Available for $39.99 excluding delivery, this board is a pocket money buy, question is can it deliver decent performance at this measly price?

Aleš Mravlak  is another hobbyist who has discovered the joys of the Tripath TA2024 Class T amplifier IC.  In his case he started off with a Chinese made module supplied to him by Arjen Helder.  This module uses the Tripath evaluation board schematic and as Aleš shows here, there are plenty of potential modifications you can do to this board to get the most from it. 

This article originally was originally published in Affordable$$Audio E-Zine in the April 07.  With kind permission of Affordable$$Audio and the Author Robert Powell I am pleased to re-publish it here.