Power supply for field coil drivers by Thomas Mayer (Vinylsavor). A custom order for a pair of A4000.1 horn drivers. Take a look at my other classified for a pair of those! The PSU is also suitable for the 2544, the successor to the A4000.1, or other drivers with comparable electrical characteristics.

Due to an array / matrix of switches the user can select between various settings for ideal operation of the electromagnet, to match it perfectly to his personal audio tastes as well as to the other components of the loudspeaker. Sonically this PSU is very different from common linear PSUs found on the market. If you think "it's only electrical current, what difference can it make" I am sorry to say that you are mistaken. It simply sounds a lot better, period.

I am the first owner, there never was an original packaging as I personally went to Lindau on Lake Costance to meet with Mr. Mayer and pick up this fine piece of work.