Non-transferable warranties?

Many higher end brands will not transfer the warranty.
In fact, many will not even cover warranty service if you didn't buy from Authorized Dealer within their territory (US customer buys from Asia for example and new buyer needs unit changed to US voltage), and some will not honor warranty if bought mail order as they require brick and mortar stores (McIntosh Labs was one back in the day).

I think transferable warranties are more the exception than the rule in hifi. And as mcintech stated, it's often a warranty requirement that the item be purchased new from an authorized dealer.

So the standard in the industry is warranty non-transferability? Maybe I should ask who's the exception, especially when it comes to dacs.