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LampizatOr- The Horizon DAC Manual
Aging problems
As already explained above, the DAC should age very very slowly.
The digital PCB should last a lifetime. The transformer, the paper in oil caps, the
cables, plugs, sockets – should last a lifetime. There are electrolyte caps which we
selected from premium brands and they should last circa 25-30 years. Other than that
we suggest to change tubes every 10 years.
So - short of a thunderstrike – we expect no failures or ageing problems before 20
years.
Fuse Change
The DAC is equipped with a non-repairable 20 mm glass fuse circuit breaker inside the
IEC-AC socket at the back. There is also one spare fuse provided in the little drawer
removable when changing the fuse. The fuses are 2A (or 3,15A for USA/Japan/Taiwan)
they are slow blow, and overrated by the factor of 2. Therefore it is impossible for the
fuse to blow without a specific reason - a failure inside the player. Consequently, if the
fuse burns, it is a signal to send the dac for service and NOT change the fuse.
Obviously the second fuse will burn as well.
WE ABSOLUTELY DO NOT ALLOW changing the fuses for any larger size than 2A
(3,15) or installing the “audiophile silver bolts” in place of the fuse. Fuses are there
mainly to SAVE YOUR LIFE. And we mean that. You can experiment with audiophile
grade fuses but not DEAD BOLTS please.
Volume control
The volume control is an extremely nice module, that changes the way we use the
DAC. The module consists of 5 elements:
of
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Spare fuse is here
