Lampizator BEST300B DAC, User Manual

Page: 7 / 24

! 7
LampizatOr- BEST300B DAC Manual
Additionally all our DACs have special heater circuits that slow down the inrush current
by the factor of 10 and protect the heaters (cathodes) from developing spots and
blemishes that cause metal erosion and eventually death (of the tube). Our circuit goes
way beyond the tube datasheet recommended protection. It extends the tube life at
least double versus the datasheet specs.
Cabling and cable handling
Just to be sure that we know what we are doing:
- AC cable can be freely plugged and unplugged during operation. It is OK for the
DAC but NOT OK for the amplifier and speakers. A loud thump may appear after
switch off. Please turn your volume fully down before switching off the DAC.
- SPDIF cable should be plugged and unplugged when the transport is powered off.
The DAC can be on. However doing it on „hot” when all is working – is not
dangerous for the DAC as long as the AC power supply has the GND for all
products (DAC, transport, amps).
- Signal cables can be plugged / unplugged with the amplifier volume turned fully
down.
Please use a decent AC cable. We suggest spending around 200-400 Euro for a good
AC cable, not more but not much less. The free AC “computer grade” cables are not
good enough for serious audio.
Please use a decent digital interconnect. In our DAC it is completely unimportant what
is the wave characteristic impedance of the cable (the famous 75 Ohms). Just use the
cable that sounds good to you. Analog as well as digital interconnects can be tried.
Best results are obtained with silver cables. Let your ears decide, not specs of the
cable.
Lampizators produces all types of cables for audio systems - you can order them
from us with confidence of tremendous value for money. To beat our cables you
need to spend 2000 Euro per one.
! of ! 7 24