first AM44 left my lab

first AM44 machine left my lab:



equipped with a
professional Pitch13 system,
16″ vacuum turntable and
TT15 direct drive

it will be already close to a good neumann VMS70.

there are still a few parts in prototype stage like arm and suspension box.
but we work hard to get those parts to a final stage.

ballpark price for a working system based on caruso head and simple fixed pitch will be around CHF 15’000.

stay tuned for more news.

brand new LOV74 N,P (SAL74 power amp) cards

first batch of LOV74N and LOV74P arrived.
will be tested soon and main batch is ordered.

plug&play SAL74 amplifier cards.
– all new built.
– with much better performing transistors than the old MJ410/MJ423.
– 115um copper traces.
– increased voltage bypass caps.
– available parts




with this cards SAL74C rack is complete and we can soon provide brand new built SAL74C racks.

AM44 new turntable bearing concept

just machined the new AM44 turntable bearings.
still in conceptual phase. but i guess this is the way to go.

main concept is similar to the Neumann approach:

Aluminum case
bronce sinter glide berarings
and Axial Bearing

but i also include a 1000 imp/rev encoder on the axis.
the vacuum is taken through the axis.
and the bearing plate will have the screws to adjust the height.

as TT15 does not need a heavy casted iron turntable anymore this is much better
for brushless, direc drive motors.