Atlantic Technology SB-900DF Manual de usuario
2
Model SB-900DF Powered Subwoofer
CAUTION: To reduce the risk of electric shock, do not remove the
cover (or back). No user serviceable parts inside.Refer to qualified per-
sonnel.
WARNING: To reduce the risk of fire or electric shock,do not expose
this appliance to rain or moisture. This device generates a fair amount
of heat. Make sure nothing blocks the ventilation to the rear panel of
the unit.
The lightning flash with arrowhead, within an equilat-
eral triangle, is intended to alert the user to the presence
of uninsulated “dangerous voltage” within the product’s
enclosure that may be of sufficient magnitude to consti-
tute a risk of electrical shock to persons.
The exclamation point within an equilateral triangle is
intended to alert the user to the presence of important
operating maintenance (servicing) instructions in the
literature accompanying the appliance.
For Future Reference
Record your serial numbers and date of purchase here:
Model Number
Serial Number
Date of Purchase
The serial number is found on the back panel.
Safety Precautions
Safety Precautions
Copyright © 2012 Atlantic Technology International.
Specifications are those in effect at the time of printing. Atlantic Technology reserves
the right to change specifications or designs at any time without notice.
Model SB-900DF Specifications
Bass Driver 8” long-throw
Output Power 125W RMS
Distortion (amplifier) <0.5%
Frequency Response 32Hz – 200Hz ±3 dB
Peak Output 103dB SPL into 2000 cubic Feet
Dimensions (WxHxD) 107⁄8x 131⁄8x 131⁄16; 277 x 334 x 332mm
add 1.75" (45mm) H for feet
add 1.5" (38mm) D for knobs & grille
Weight 28lbs/12.7kg
Power Requirements 110-120/220-240V, 50/60Hz, 250W Max
3
Instruction Manual
High Level Output
Connect main Left/Right speakers here when using the High
Level Input.
High Level Input
If your electronics do not have a line-level sub out, connect the
Left-Right speaker terminals of your electronics to these con-
nections. Set the SB-900DF’s crossover to “Lowpass,” and adjust
accordingly. Make sure to set your receiver to“Large”for Left and
Right speakers.
AC Input
Use the included power cord to connect your amplifier to a wall
outlet.
Voltage Select Switch
Voltage switch for use in different countries.This switch will be set
when you receive the unit. Change this setting only when you are
sure your application requires it. For US, the switch should be set
to the 115V position.
Product Serial Number
Write this number in the space provided on page 2 for future
reference.
SERIAL
MODEL
SB900BJRWWY80100
SB-900DF-BLK Powered Subwoofer
Status LED
This will be green for "on" condition,red for "standby"
Standby Switch
When in ON position,the amplifier will always be on.When in the
AUTO position, the amplifier will be in Automatic Standby Mode.
Phase Switch
This switch allows precise acoustic matching with satellite speaker
systems whose output may be phase reversed.Try in both positions
— use the position that results in the strongest bass output.
Bass Level Control
Use this control to set the level of bass desired
Crossover Control
An adjustable (55Hz to 200Hz) @ 18dB per octave low-pass
crossover.
Low-Pass Switch
When in the LOW-PASS position,adjustment of the crossover can
be made by the Crossover Control.If being fed a pre-filtered or THX
signal, place the switch at the BYPASS position.
Low Level Input
Use the input to connect to the subwoofer or LFE line out from
your processor/receiver.
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4
3
2
10
8
9
SB-900DF Subwoofer Rear Panel
Figure 1
2
10
11
4 53
12
5
176
8
9
6
7
11
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4
Model SB-900DF Powered Subwoofer
Placement and Operation
Generally speaking, the best location for your new subwoofer is the
front of the room, close to a corner (Figure 5). Every room has its own
unique sound characteristics, and flexibility in the exact placement of
the subwoofer is always desirable.The closer the subwoofer is placed to
a wall and especially a corner, the more and deeper the bass response
you will hear.However, in some rooms,corner placement can produce a
“one note”boomy effect. Under such circumstances the subwoofer may
work better away from the corner. Experiment to find the best position
in your room.
Figure 5
Typical arrangement for a single subwoofer in a home theater.
1. Start here 2. Move to
corner for
more bass
3. Move away
from wall for
less bass
Using the Subwoofer Crossover Control
NOTE: Set this control to "BYPASS" if
you are using a receiver that has its own
subwoofer crossover. Set this control to
"ACTIVE" if your electronics do not have
a bass management function.The goal is
to optimize the performance of the sys-
tem by ensuring that the subwoofer and
satellites produce a cohesive and well integrated sound“picture.”
Most surround sound receivers and processors offer a choice of cross-
overs,typically between 60Hz and 150Hz.We recommend using a setting
between 120Hz and 150Hz when using small speakers such as those in
a soundbar. Consult your electronics owner's manual for more details.
It’s generally undesirable to have the main speakers and the subwoofer
overlap too much. Larger speakers means a lower Low-pass crossover
frequency, smaller speakers means a higher Low-pass crossover fre-
quency. Consult the manufacturer’s specified low frequency response
for your main speakers to determine the appropriate Low-pass setting
on your subwoofer.In the end,however,a little time spent experimenting
will generally result in dramatically better bass response.
Care of Your Subwoofer
Your subwoofer is constructed from Medium Density Fiberboard.MDF
is a non-resonant material ideal for speaker system enclosures.To clean
the cabinet you may use a soft cloth either dry or slightly dampened with
clean water.Be careful not to wet the cabinet or allow any water to enter
the cabinet seams.Avoid placing your speakers in direct sunlight or near
a source of heat that may, over time, damage the finish.
015-1099-A
Subwoofer Troubleshooting Guide
Once your subwoofer is set up, you should have many years of maintenance free enjoyment from your system. However, if you should encoun-
ter a problem, refer to the following guide to help you find the solution. If a problem persists,you should contact your local authorized Atlantic
Technology dealer.
Problem Possible Cause Possible Solution
No bass output AC power cord unplugged or Plug into a working outlet.
plugged into a non-working outlet.
Input cables not securely Check all connections, then try another
connected or defective. input cable.
Audible buzz or hum Input cable not securely connected Check all connections, then try another
or defective. input cable.
Ground loop through antenna or Test by disconnecting antenna and/or cable
cable TV system input. system input leads. If hum goes away, install
isolation balun(s) at that point.
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