It's got a class D amplifier which makes that a perfectly credible specification. I cracked it open - has a Chinese IC in it. Possible to get THD down to 0.03% easily with those. Haven't measured it but it sounds pretty excellent even with shitty Fiat default speakers. And I'm throwing Ralph Vaughan Williams' Lark Ascending performed by the Royal Philharmonic Orchestra through it which has an excessively large dynamic range and no compression. ![ThumbsUp :-+](https://www.eevblog.com/forum/Smileys/default/icon_smile_thumbsup.gif.pagespeed.ce._JElyJQqdB.gif)
The thing is regardless of the promises, it delivers 99% of the performance of something 1000% of the cost which makes it a good value proposition. Good job China ![ThumbsUp :-+](https://www.eevblog.com/forum/Smileys/default/icon_smile_thumbsup.gif.pagespeed.ce._JElyJQqdB.gif)
Pink Floyd, The Division Bell, Dark Side of The Moon etc?
Been there done that. Division Bell sounds good. One of the best pieces of recording in history is the first few seconds of Lost for Words.
That's a really cheap unit and I bet it would struggle to deliver the quoted power output and has sky high distortion figures and has poor frequency response to boot. ![Popcorn :popcorn:](https://www.eevblog.com/forum/Smileys/default/EatingPopcorn.jpg)
OK. How much are you prepared to bet and lose?
Class D amps are an area where Chinese silicon vendors hit a home run. They came up with some really good performers which are very cheap to make. Sometimes these devices get integrated into very poor amp designs, but there are other very respectable performers which are still quite cheap. Maybe in the long term their electrolytics won't prove to have the best longevity, but on day one they work well.
Yes exactly. The implementation is pretty amazing in this if I'm honest. I've got a NAD C340 as well and it pretty much destroys that. Sounds the same, costs and weighs a hell of a lot less ![Smiley :)](https://www.eevblog.com/forum/Smileys/default/xsmiley.gif.pagespeed.ic.R8GFI-pF6f.png)
When I said cheap, I meant at £22, it is cheap, I don't doubt for a moment that it is also capable of putting in a reasonable performance and when taking the low cost into consideration, its incredible really, and I for one would much rather sit and listen to it then I would that stereo in the the YouTube video
![ThumbsUp :-+](https://www.eevblog.com/forum/Smileys/default/icon_smile_thumbsup.gif.pagespeed.ce._JElyJQqdB.gif)
I would like to know about just how that 4 channel sound is measured, peak, music power or RMS and if it is actually capable of delivering that level of power without cooking itself as normally you need some pretty monstrous heat sinks and into what impedance?