Nobsound Mini Bluetooth Power Amplifier Stereo Hi-Fi Digital Amp 2.0 Channel 50W×2 with AUX/USB/Bluetooth Input Wireless Audio Receiver PC Sound Card with Power Supply (Black)

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I can safely say, 100% goods sold are fake (not cheap) and they do it openly, and authority don't care.

Looks like they keep putting out newer/revised models and actually do a great job of fixing/adding features each year. The cheapest amplifier with just analogue inputs that I would be willing to risk my money with is probably the 2x100 watt Sony STR130.Just check out Audio Space, Cayin, Prima Luna, Consonance, Mingda, Doge and Line Magnetic are all excellent. The inlaws makes a request to families in HK and then it gets taken across the boarder, just don’t get caught with quantities otherwise customs will either confiscate or make you pay import duty. Read more about the condition New: A brand-new, unused, unopened and undamaged item in original retail packaging (where packaging is applicable). When I brought this to their attention, they sent me a new faceplate with "Nobsound" on it but no "E-600.

Vintage amplifiers usually have more “fun” in the sound, mainly due to far from flat frequency response and THD levels. The fact is that most speakers will exhibit fairly high eddy losses at those switching frequencies used by Class-D amplifiers. Rubbish Chinese amps like this one are getting rarer - the majority of them now have excellent build quality and aspire to be a hi-end product. Another major problem with filterless Class-D designs such as this Nobsound Bluetooth amplifier is EMI which stands for electromagnetic interference. Probably because the one amp is the basis for many many amplifier types that all look different when under the bonnet it's just the same SS amp.When connecting long speaker wires, there will be lots of unwanted EMI radiated since this receiver is outputting the high-frequency signal without any low-pass filtering (except for some small ferrite beads). Read more My first unit had a problem with the AUX section and the seller sent a new one immediately. Me and others were not so lucky, I can only conclude there is very little quality checking on these.