Perhaps a larger lesson can be gleaned from this.
The only Chinese made amp I ever bought was from JoLida. Mike checks each completed unit stateside personally before selling it. Shipment of the products to the USA is therefore domestic and quality is guaranteed.
If an similar arrangement is not available, I would never touch any PRC manufactured electronics. Too much PRC product is junk right out of the box. If I were wealthy enough I would never buy anything from there on general principles. I don't blame the Chinese, rather the greedy, short sighted Western companies that moved their production offshore.
As for shipping, I would insist on Post or FedEx. UPS can be a class outfit, but more and more the company is using its shipping only to leverage supply chain contracts - ever try to get a direct FedEx quote on Ebay? - and makes their drivers work too fast to ensure low damage rates. Most experienced Ebay sellers switch to FedEx Ground for domestic and Canadian shipments when they discover it costs less than UPS, and breaks far fewer things. I have found Australian, Canadian and Western European Postal services to be safe and reliable. Surviving the USPS leg is the only dicey part.
Bottom line, companies should import their wares to the intended market and ship locally. The better ones do. It is more convenient for the customer and they retain control over quality. If a company has an importer in your country, use it. Trying to save a buck and bypass them is a short sighted plan. No guarantee, and shipping each piece internationally instead of shipping in a container is so inefficient only small concerns, usually individuals, do it. Buying from individuals or very small dealers in foreign countries is always going to involve a lot of risk if you don't know them personally.
Speaking of "personally," I am not speaking here to any individual poster, but generally.
They offer very attractive costs so greed kicks in and you may end up with headaches.
Having said that, I just ordered two amps form two separate Chinese dealers