According to the Management and Corporate Policy posted on the Accuphase website, they limit production to 5,000 units per year and are not looking to expand:
"One of the corporate principles that Accuphase has observed since its
beginning is the conscious decision not to pursue expansion. In a free economy,
most companies try to grow. However, demand is not unlimited. If we were to
chase the numbers, trying to sell more and more products and compete only on
price, we would lose our ability to create truly high-end audio components.
We therefore are not increasing our staff numbers (currently about 80, similar
to the time of the company's founding), in keeping with the principle of "small
numbers ‒ exceptional talent". Rather than trying to expand the scale of the
company, we believe in quality over quantity. We adhere to a low-volume
production schedule, building and marketing only about 5,000 units per year. But
with regard to the products that we are making, we passionately care about their
sound, their performance, their quality, and their design. We do not ship a
product unless it fully meets our exacting standards. This gives it lasting value
and ensures the excellent reputation of the Accuphase brand."
https://www.accuphase.com/company_profile/a2_management_policies_2.pdf