Used it to replace a Jab3 plus Bluetooth board combination.
The pcb material is much thinner and appears like a cheaper build when compared to the older jab3.
I was a bit worried if it will sound as good and... It does. I Don t see any difference in quality for the amplifier part when it comes to sound and because it has Bluetooth built in it actually sounds better than my old "separates" combo.
This board can be configured with Sigmastudio to get the most out of your projects.
One minor fault is that, with my phone, when on APTXHD connections, I can not change the LR balance. Unless it is perfectly in the middle, there is a very high noise. All is ok with AptX, only on HD there is this issue. It could be due to my phone though.
Also, the music itself is ok if I leave the balance centered with HD as well, stereo image is good.
For its price, I find this the perfect amp for portable speakers. Enough power and amazing versatility due to the built in DSP.