dontfeedphils
1000+ Head-Fier
Until it will fail outside of that warranty and you end up paying for it yourself. Common driver failure on a TOTL headphone that costs €4000,- is simply unacceptable. Given that it happens so commonly indicates that it's likely a design flaw.
In other words, you are buying a product with which the question is not whether it will fail or not, but when it will fail.
Audeze had a similar problem with their LCD-4 headphones, but at least they have managed to fix it. With Utopia it still hasn't been apparently, even years after discovering the issue.
For me that means that I won't buy an Utopia headphone until this has been dealt with. No matter how good it may sound.
5 years of warranty isn't enough for a TOTL product, which you'd expect to last like 20 years. Especially for a product with such unsolved issues.
And this is coming from someone who owns an LCD-4 and had it's drivers fail before.
I feel like if it doesn't happen within the 5 year warranty you're probably safe. But opinions vary.