I've purchased 2 sets of headphones from Drop and 2 DACs. I want to love Drop, but all in all, your response time is bad. It's like, "do I save $$ but get bad and unresponsive service" or "pay higher prices elsewhere and get good service"? I purchased the much-ballyhooed HD6XX and have yet to succeed in purchasing the warranty. Yes, you replied to my emails but when it came to the point to purchase, crickets from you. Hopeful that this was unusual, I recently purchased the Drop Hifiman HE4XX. Unfortunately, they arrived scratched, with a crimped cable and am still waiting for your response. You began but did not complete the process for exchanging. I did purchase the warranty for the HE4XX but at the end of the day, it may not make any difference.
If I ever need the warranty, how will that work out? Are you understaffed? I do not like to whine / complain but you guys need to get your act together. (And please, don't blame things on COVID-19). Oy.