I'm the owner of the KGSSHV Mini in question. The origin of the unit is the AU store MyHeadFi. It is quite the story for me, so I'll post the events of what happened incrementally if I get the time. I posted the e-receipt of the order that was placed. Long story short, I owned the unit for less than 3 weeks before it died completely on me. The seller absolutely 100% refused to issued a refund (Vance from MyheadFi) and I had no choice but to ask visa to file a dispute for the lost funds in questions. He was unhelpful and demeaning all around (more on that to come). I eventually won the case, but at the cost of considerable time, money, and sanity. Visa's requirement to file a claim was such that a 3rd party must analyze the ordered product and determine whether it was in proper working condition. The second requirement was that this 3rd party had to be a qualified vendor with an online store that sold a similar product. The problem with these 2 requirements was that, as far as I'm aware, Mjolnir Audio is literally the ONLY 3rd party on the face of this planet that was qualified to provide a statement to Visa because he is the only vendor of these amps with an online store and the only vendor of these amps that designed them. Spritzer and Kevin Gilmore worked in conjunction to design these amps, and, as such, every other 3rd party or diy builder either wouldn't have a registered store of their own or wouldn't be qualified to assess a defective unit. Spritzer was kind enough to do me a favor and provide evidence to visa that the amplifier in question was in fact 100% defective and in non working order. I have to pay over 200$ to have the amplifier rushed out to Spritzer and analyzed within the timeframe visa had requested, which is quite the hefty shipping fee.
Now lets fast forward to just about 24 hours after I received notification from visa that I had won the dispute with the seller and things start to get even more interesting. I did get all of the funds back from visa after they issued a chargeback for the full amount. However, I started to receive threatening emails from the seller. I also I opened up my visa statement to find some fun surprises. Low and behold, I saw the thing I suspected I would see: Even more fraudulent charges on my account! Why did I suspect this? Well, because the seller still had all of my credit card information and boy was he still pissed at me. So in total he managed to rack up about $2000 to $3000 worth of Sony Entertainment charges, which I can only assume are related to Playstation digital goods, as well as a couple of food delivery charges for a company that doesn't exist where I live. Let me be clear in stating that I do not own a Sony Playstation, but instead own a high end PC with a brand new 3090, so it stands to reason I would never stoop that low ; ) Anyway, as I write this now I am STILL in the process of disputing all of these fresh fraudulent charges on my visa statement. I was assured by visa that all of this will go away soon enough, but it's still a huge pain to deal with. Ironically I also read what happens to online game accounts like PS4 and PS5 accounts that are flag for fraud or initiate chargebacks. Essentially their accounts get blocked until they end up covering the lost funds, so these accounts become unusable. If they spent considerable money on these accounts prior to the fraud, their library of digital goods is basically forfeit and they shoot themselves in the foot. So if you're reading this, have fun with that, I guess?
Moral of the story? Don't buy knockoff goods from crooks and scammers. Buy only from legit places or sellers you already know. Steer clear from MyHeadFi. Jr. Audio products are total utter trash. My unit failed in various ways over the course of a few days during light usage. If you want to risk it after reading this, you deserve what happens next. Remember that you get what you pay for.