5
WHAT’S IN THE BOX?
Please check that the shipping box contains the following:
One (1) Allnic L-4000 preamplifier – in natural
aluminum or black, depending on your order
specification
One (1) power cord
One (1) Owner’s Manual
Note:
1)
The L-4000 ships with the tubes installed.
2)
The L-4000 will work with most IEC type
aftermarket power cords. Of course, only you can
determine the power cord that works most
synergistically with the L-4000 in your system.
We advise that you keep the box and other packing
materials that your L-4000 came in. It will be useful if you
sell your L-4000 or in the unlikely event you need to ship it
for service.
SAFETY
Remove ALL protective cushioning material inside
the tube chimneys before operation. The tube
chimneys should contain NOTHING except the
tubes.
Disconnect the power cord by pulling the plug, not
the cable.
Keep the power cord away from any heat source.
Keep the unit away from liquids – do not allow any
liquid to enter the interior of the unit.
When the unit is moved from a cold to a warm
environment, allow sufficient time for any
condensation to evaporate before plugging the unit
into an AC connection.
Do not attempt any repairs.
Do not remove the chassis cover without specific
authorization from Hammertone Audio.
See the notes on “Location, Location, Location”.
CLEANING
A.
Chassis and glass
Use only a soft, lint-free cloth dampened slightly with
water only (NO cleaning fluids!) to clean the faceplate,
meter glass and chassis.
B.
Connectors
You may use any good quality contact cleaner
recommended for such applications to clean the contacts
from time to time as you deem appropriate.
INITIAL SET-UP
A.
LOCATION, LOCATION, LOCATION
Like all audio products using tubes, the Allnic Audio L-
4000 needs to be placed on a solid stand in a location
that provides for good air circulation around the
preamplifier.
DO NOT cover the top of the H-4000
preamplifier.
DO NOT place the unit on carpet or foam.
DO NOT subject the unit to knocks and shocks as
you move it around. This advice is meant
Output
Impedance
Frequency
(Allnic LCR Output Impedance Curve)
Frequency
(Traditional CR Type Output Impedance Curve)
Output
Impedance
