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MM 42 Monitor Processor

MM 42 Front

MM 42 Rear

The MM 42 has been discontinued.

The HC6S Headphone Console is still available.

MM 42 Support

If the above options don't answer your question, or it's urgent...
Phone 425-355-6000, 8:30 AM to 5 PM PST, Monday through Friday.
If it's less urgent, you can email the factory.
For local service within the USA, find a service center.