Hello, I’m Nathan, and I’ll be assisting you today. My livelihood depends on your positive feedback, so your satisfaction is my highest priority.
Sorry to hear you’re having trouble, Larry.
Sennheiser does not have an authorized service network within the US, so you won't be able to get it done locally, at least not with someone that is certified to do so.
Your best option is to send it in to Sennheiser factory service. If less than a year old they will service under warranty, otherwise they'll still fix it but charge for the repairs and shipping.
You may call(###) ###-####/p>
Or you can set up an account with them (this is the recommended option) where you'll register your product and account. This method lets you track the progress of the repair, receive online written estimates to approve repair costs, etc.
You may do that here: https://service.sennheiserusa.com/
If you have any other questions, just let me know. Otherwise, please rate my service; hopefully I have earned 5 Stars. I also invite you to contact me directly with any future support needs at http://bit.ly/1QwLxGh
Thank you, ***** ***** a good day,
I am an independent technician and I've spent my personal time, unpaid, in an effort to assist with the question for which you solicited my services. This site works on the honor system, and to that end, I have prioritized working with you ahead of other paying customers.
Although you’ve already paid your fee to the site, I am only compensated for my efforts when customers such as yourself leave positive feedback for my work. Again I apologize there is not a better outcome here, though this is really beyond either of our control. I do hope you’ll consider leaving a 5 star rating for me, rather than “shoot the messenger”, so that I may get credit for my time spent in good faith to answer your question accurately.