Page 4 Active Studio - Subwoofer O 800
ter, Right) are going to a surround-sound system.
SUB DIRECTSUB DIRECT
SUB DIRECTSUB DIRECT
SUB DIRECT
In Sub-Direct mode, only the left and right input
signals are electronically summed and sent
through a 90-Hz low-pass filter to the subwoofer,
whereas the signal from the CENTER/SUB-
DIRECT input is sent to the subwoofer directly
as a broadband signal, i.e. without filtering out
any of the frequency spectrum. This mode would
then allow a second subwoofer to be added for
the purpose of increasing the overall system
output. This operating mode is recommended
when both rear channels are reproduced by way
of Left and Right and the Effect channel is
reproduced by way of the Center/Sub Direct.
1.11 Ground Lift 쐎
Since the inputs are balanced, it should rarely
happen that you encounter problems with hum.
In unusual cases or if the source is unbalanced,
it may become necessary to lift the signal ground
from the chassis ground. To do so, simply move
the GROUND switch to the LIFTED position. In
the CONNECTED position the chassis ground
and the signal ground are connected to each
other by way of a fuse-resistor. However, the
chassis ground always remains connected to the
protective earth conductor of the mains cable.
1.12 Bypass 쐅
Use this switch if you wish to mute the subwoofer
for purposes of evaluating the sound of the system
without any low-frequency reinforcement. In the
position SUB BYPASS, all outputs are fed
broadband signals from their corresponding
inputs (without the 90-Hz high-pass filtering),
whereas in the position NORMAL, the subwoofer
operates in the manner we already described.
1.13 Bypass Remote 쐈
With a standard on/off single-pole footswitch
connected to this jack, you can operate the
bypass function remotely.
Please note that this jack takes precedence over
the BYPASS switch, i.e., when this jack is
occupied by a ¼” phone plug, the BYPASS switch
is disabled.
Footswitch open = NORMAL
Footswitch closed = BYPASS
1.14 Mains Fuse 쐉
When replacing the fuse,
first disconnect thefirst disconnect the
first disconnect thefirst disconnect the
first disconnect the
mains cablemains cable
mains cablemains cable
mains cable and ensure that the new fuse is of
the following type:
for 230 volts AC: 1.6 A Slo-Blo (5 x 20 mm)
for 117 volts AC: 3,15 A Slo-Blo (5 x 20 mm)
for 100 volts AC: 3,15 A Slo-Blo (5 x 20 mm)
1.15 Power Indicator LED 씈
The green LED built into the power switch will
illuminate to confirm that the subwoofer is
operational.
1.16 Care of the Cabinet
The cabinet housing of the K+H O 800 active
studio subwoofer comes standard with an
anthracite-colored enamel finish (RAL color 7021).
Take care when handling the unit not to damage
the finish. To clean the cabinet, use a soft cloth
with a mild cleaning agent only. Under no
circumstances should you use alcohol-based or
chemical agents, nor any cleaners with abrasive
action.
2. Warranty Information
All K+H products undergo an extensive
procedure of quality control testing before leaving
the factory. Before semiconductors are mounted
on the circuit board, they are subject to rigorous
tests. Every single unit is guaranteed to match
its technical specifications within strict
predetermined tolerances.
Please store the original carton in a safe, dry
place. If you should ever need warranty service,
put the unit in its original packing material and
carton together with a detailed description of the
problem, and ship it (freight prepaid) to our
distributor or directly to
K+H warrants, that the product is free from any
defects in both material and manufacturing and
that it meets the specifications. A warranty case
can only be acknowledged under condition that
the complaint is filed to our distributor or to us in
writing
within 8 dayswithin 8 days
within 8 dayswithin 8 days
within 8 days after delivery or detection
of the fault. Not covered under this warranty are
damages due to inexpert packing and shipment,
wear and tear, improper handling, installation,
operation and maintenance.
The limitation period for warranty claims is
described in the terms and conditions of K+H
GmbH. Its our choice to repair, to supply a new
product or to withdraw from the contract.
In the event warranty service is required,
presentation of a warranty card will not be
necessary. Proof of purchase date can be made
by filing copies of appropriate documents (invoice,
delivery note).
3. Diagrams
The outstanding sonic impression made by the
O 800 active studio subwoofer in listening tests
is confirmed by the most advanced technical test
y
your dealer.
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