I think Douk should be thanking you for the exposure too, possibly sending some fine tea over to the Seattle area or maybe send a representative over to valet your camper van.
Yes, although I got the impression from our host's comments after some tests that Amir always enjoys a good, tasty and plentiful meal.
A few years ago, I promised my wife that I wouldn't put any more “hi-fi junk” in the house, which I have generally kept.
But it's these little chip amplifiers that I've found so fascinating for some time now that I've bought a few of them again, even though I don't really need them.
On the other hand, they don't take up much space either ...
Not so long ago, however, there were very few amplifier designs with the TPA3255, but only the TPA3116 were widely available here in Europe.
That was also the first chip amplifier I bought, a Nobsound NS-15G PRO CSR8675, whereby Douk and Nobsound are identical.
However, even then I wondered why there weren't more designs with the TPA325x on the market, as it always seemed to me to have very promising specifications.
Lo and behold, a lot of these TPA3255 amplifiers are currently being released and consumers have a very good choice. When it comes to the selection of components and features, the manufacturers, who are all based in the Pearl River Delta 珠江三角洲 and most of them in Shenzhen, seem to cross-fertilize each other technologically, because the layers and components of the boards are similar, even if they are not identical.
PFFB, Wima and ELNA capacitors, TDK inductors etc.
I imagine that the competition is fierce and the profit margin is clear when you realize top audio performance and sales prices in the range of 80 to 300 USD at the same time.
I would therefore like to take this opportunity to thank not only our host for testing the components, but also the staff at O-Noorus, Aiyima, Fosi, Douk and 3e Audio, who regularly bring new amplifiers onto the market with very good data and features at very reasonable prices and are always open to customer inquiries and suggestions from this forum.
I can't wait to see what comes next.
Only positive things? Almost, but not only.
I think there is a reason why many of these amplifiers are only supplied with smaller power supplies, which is perfectly adequate for most applications.
However, if you really want to exploit the potential of the TPA3255 to the full and use a 48V 12.5A power supply, for example, even more emphasis should be placed on the thermal design, which is of course more complex and expensive.
What can also be seen in many of these small, stylish and flat amplifiers is the horizontal use of the large capacitors in the immediate vicinity of the heat-generating main chip. This is also a suboptimal solution.
In my opinion, the Douk A5 has an incredibly good price-performance ratio and it offers a very good connection to a subwoofer. I think it's a very practical and stylish solution, although of course (it's ASR) there are many critical voices about the LED design and the possibility of replacing the OP amps, but I think to myself: it's an option, you don't have to do it.
I think the glass lid is quite nice, but it should be firmly lockable. I find it questionable when you buy an electronic product whose electronic components are exposed in case of doubt.