Atlantic Technology 444 SB, 224 SB, 334 SB User Manual
444 SB
Instruction Manual
Model 224 SB
Model 334 SB
Model 444 SB
High Performance Powered Subwoofers
334 SB
224 SB
2
Safety Precautions
Model 224, 334 and 444 SB Powered Subwoofer
Safety Precautions
CAUTION: To reduce the risk of electric shock, do not remove the
cover (or back). No user serviceable parts inside. Refer to qualified personnel.
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 openings on the top and
bottom of the unit.
The lightning flash with arrowhead, with in an equilateral
triangle, is intended to alert the user to the presence of
uninsu lated “dangerous voltage” within the product’s
enclosure that may be of sufficient magnitude to con-
stitute 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.
Table of Contents
2 Model 224, 334 and 444 SB
3 224, 334 and 444 SB Subwoofer Rear Panel
4 Clear Filter™ Technology and Other Features
5 Connecting Your Subwoofer
5 Subwoofer Line Out to Low Level In
5 Using the Low Level Output
5 Power Connection
6 Low Level Connections with One Subout/LFE Output
7 Low Level Connections with Two Subout/LFE Outputs
8 Placement and Operation
8 System Setup
8 Subwoofer Tuning Without an SPL Meter or Test Tones
8 How Much is Enough?
9 Dual Subwoofer Placement
9 Using the Subwoofer Crossover Control
9 The Phase Invert Control
9 A Word About Bass, Center Channel Modes
and System Set Up
9 Care of Your Subwoofer
10 Subwoofer Troubleshooting Guide
10 Specifications
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.
Copyright © 2009 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. THX and THX Ultra 2
are registered trademarks of Lucasfilm, Ltd. Dolby Digital, AC-3, Dolby Stereo and Dolby
Pro Logic are trademarks of Dolby Laboratories Licensing Corporation.
Model 224, 334 and 444 SB
High Performance Powered Subwoofers
Congratulations on your purchase of an Atlantic Technology powered
subwoofer. A well designed subwoofer, properly integrated into your system, will enhance your listening pleasure dramatically by providing the
bass foundation upon which most music and special effects are built.
These subwoofers are capable of delivering very high output levels and
wide dynamic range. When properly placed, these subs will provide
smooth in-room bass response down to approximately 25Hz, with a peak
SPL of over 102dB in a normal sized room.
Their high-current amplifiers, coupled with their rugged long-throw
woofers in sealed enclosures, generate accurate deep bass with a minimum of distortion.
Your Atlantic Technology powered subwoofer will smoothly integrate
with virtually all brands of loudspeakers on the market. From the rocksolid amplifier to the easily accessible controls, this is one of the most
versatile high performance subwoofers you can buy.
3
BYPASS
LOW-PASS
ON
AUTO
PHASE
NORMAL
INVERT
40
160
100
LOW-PASS
60
RIGHT
L/MONO
OUTPUT
INPUT
STATUS
ON OFF
AC INPUT
50-60Hz 300W MAX
220-240V110-120V
FOR 110-120VAC, USE 2.5AL 250V FUSE
FOR 220-240VAC, USE 1.25AL 250V FUSE
FOR CONTINUED PROTECTION AGAINST RISK OF FIRE,
REPLACE ONLY WITH SAME TYPE AND RATING OF FUSE
U.S. Patent #5,075,634 and
5,510,753 Patent Pending
AVIS: RISQUE DE CHOC ELECTRIQUE-NE PAS OUVRIR
RISK OF ELECTRIC SHOCK
DO NOT OPEN
CAUTION
WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK.
DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE.
DOUBLE INSULATION - WHEN SERVICING,
USE ONLY IDENTICAL REPLACEMENT PARTS
A
Z
A
R
D
S
S
S
E
COMPLIANT
E
S
R
H
I
O
T
R
I
C
T
N
O
F
O
U
C
B
S
T
A
N
U
Subwoofer Rear Panel
Instruction Manual
224, 334 and 444 SB Subwoofer Rear Panel
1
Low Level Output
The outputs allow daisy chaining of multiple subwoofers, or as a return path back to the processor. (pages
4 and 5)
2
Low Level Input
Use the input to connect to the subwoofer or LFE line
out from your processor/receiver. (pages 4 and 5)
3
Crossover Switch
When in the NORMAL 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. (pages 4 and 8)
4
Crossover Control
An adjustable (40Hz to 160Hz) @ 18dB per octave
low-pass crossover. (pages 4 and 8)
5
Phase Switch
This switch allows precise acoustic matching with
satellite speaker systems whose output may be phase
reversed. (pages 4 and 9)
Status LED
6
This will be green for "on" condition, amber for
"standby"
7
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. (pages 4 and 8)
Product Serial Number
8
Write this number in the space provided on page 2 for
future reference.
9
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
110-120V position.
10
On/Off Switch
Use this switch to turn the amplifier completely on
or off.
11
AC Input
Use the included power cord to connect your amplifier
to a wall outlet. (pages 4 and 5)
12
Front Mounted Variable Level Control
and Status LED
Shown in greater detail on page 8.
Figure 1 - 224 SB shown
1
72 3 4 5 6
8
9
10
11
12
4
Features
Clear Filter™ Technology and Other Features
Your Atlantic Technology powered subwoofer has been engineered using
the latest technology and finest components available. It features:
Exclusive – Atlantic's Clear Filter Technology
Clear Filter Technology™ is an exclusive Atlantic design feature that
ensures the cleanest, most articulate bass possible from a subwoofer.
The small cabinet of a powered subwoofer—any subwoofer—has a
deleterious effect on the subwoofer’s sound. The dimensions of the
cabinet conspire to produce audibly intrusive interference, leading to
colored, ‘slow,’ and muddy bass response.
Therefore, we have developed Clear Filter Technology ™. Unlike conventional “limiters” and “feedback loops,” CFT incorporates special
circuitry into the subwoofer amplifier that actually eliminates the
negative effects that the enclosure itself has on the sound. That’s why
other subwoofers, regardless of their power ratings or their limiters,
can’t match the sound of an Atlantic subwoofer for detail and accuracy. This benefit is found in all Atlantic subwoofers, regardless of size,
price or configuration.
A long-throw composite cone driver with a vented motor struc-
ture and 2” high temperature voice coil
This powerful driver has a very stiff cone that acts like a piston
throughout its operating range. Its massive magnetic motor assembly and high temperature component parts deliver exceptional performance and reliability.
Sealed enclosure design for low distortion and deep bass output
Sealed enclosure woofer designs are inherently low in distortion, and
deliver deep smooth bass response with a gradual and predictable
roll-off below resonance. As with all Atlantic Technology subwoofers, we have paid close attention to providing accurate musical bass
reproduction along with terrific special effects.
High-current amplifiers
The output stage of these amplifiers are capable of very high current delivery for exceptional driver control and cool operation. They
have been precision matched and equalized to our rugged drivers.
Together they deliver powerful, controlled bass with great articulation and authority.
A useful in room working frequency range of 25Hz to 150Hz
Many subwoofers offer specifications that look great on paper, but in
real world use deliver less than promised. Atlantic Technology subwoofers are over-designed to ensure that they will deliver their rated
performance in your room, when properly placed and adjusted.
An adjustable (40Hz to 140Hz) @ 18dB per octave Low-Pass crossover
The steep upper end roll-off slope of 18dB per octave allows for much
better bass integration with the satellite speakers while making the
woofer less localizable.
Model 224, 334 and 444 SB Powered Subwoofer
Two low level inputs, two low level outputs
The outputs allow daisy chaining of multiple subwoofers, or as a
return path back to the processor.
A Phase Invert switch (Normal/Invert)
This switch allows precise acoustic matching with satellite speaker
systems whose output may be phase reversed. This switch also allows
you to compensate for unusual room acoustics that occur when the
woofer is physically separated from the main speakers. Be sure to try
the Phase switch in both positions when you set up your subwoofer.
Even if you’ve simply changed the built-in Low-Pass crossover settings it’s a good idea to try the Phase switch in both positions, since
the crossover control and the Phase switch acoustically interact with
each other. Pay particular attention to the transition of bass from the
woofer to the satellites, listening for smooth and well defined bass
throughout the range.
Convenient front panel mounted Level Control
Automatic standby operation, LED indicator
Automatic standby features signal sensing turn-on with 7-10 minute
turn-off delay. There’s a multi-color LED status indicator that lets you
know when the unit is on or in standby. Automatic Standby can be
defeated by placing the rear mounted switch in the ON position.
An AC cord power input socket
Your subwoofer comes supplied with a heavy-duty detachable power
cord.
Designed and built to meet all current US, Canadian and Euro-
pean safety requirements
NOTE:
If you are using a surround Processor/Receiver that includes
its own filtered subwoofer output (or a THX Certified Processor/
Receiver), we recommend that you set the crossover control to the
Bypass position.
Loading...