Each unit is individually assembled by a master technician in Germany or Ireland, a process that takes several weeks.

Buyers can choose the "Heritage" model or request customizations, such as different marble types or knob colors. Note that custom orders can double the build time (from 6 to 12 months) and add significant costs, such as $10,000 for a marble change .

Because of its rarity, "blind buying" is rare. Most buyers audition the unit first.

Prospective buyers must fill out a dedicated consultation form on the official Sennheiser HE 1 page .

is treated by Sennheiser as "requesting an audience" rather than a standard transaction.

A non-refundable $10,000 deposit is typically required to begin the formal order process.

The unit arrives in a heavy protective crate (the marble base alone weighs 21 kg). Authorized dealers often provide professional in-home setup due to the system's complexity. Where to Experience and Buy