soulution
nature of sound
page 6
2Safety advice:
User manual Follow the safety advice
Keep this user manual
Mains supply 3 phase power cords with a ground conductor are mandatory.
Unplug the 727 from the mains:
before you adjust or manipulate mains cables
before cleaning the unit
during thunderstorms
when leaving the unit unused for longer periods
Cabling Unplug the 727 from the mains while connecting or disconnect-
ing interconnect cables. Incorrect cabling may cause damage to
your 727, amplifier or loudspeakers. Excessive volume due to
inappropriate handling may cause hearing damage.
Transport Use only the cart, stand, tripod, bracket or table specified by
the manufacturer or sold with the apparatus. When a cart is
used, take care when moving cart/apparatus combination to
avoid injury or tipping over.
Packing To avoid the formation of water condensation within the 727,
allow it to reach room temperature before unpacking it. Keep
the original packing safely for future transport requirements.
Operation Never run your preamplifier 727
whilst the casing is open
with obstructed cooling slots
in high ambient temperatures (>40°C)
in proximity to heat sources like radiators, etc.
in areas of extreme humidity (for example in a humid cellar)
close to water (sink, bathtub, taps or similar facilities)
Cleaning Use a soft and dry towel. We suggest using a nonabrasive mi-
crofiber towel. Please do not use any solvents or liquids.
Service Service by a qualified person will be required if
the mains cable or the mains connectors are damaged
foreign substances or liquids have entered the 727
if the 727 has been rained on
the 727 exhibits any form of malfunction
the 727 has been dropped
if the casing is damaged