SB8 - Subwoofer ATLANTIC - Free user manual and instructions

Product Type	Powered Subwoofer
Driver Size	8" long-throw
Output Power (RMS)	125W
Frequency Response	32Hz – 200Hz ±3 dB
Peak Output	103dB SPL (2000 ft³)
Distortion	<0.5%
Crossover Range	55Hz – 200Hz, 18dB/octave low-pass
Phase Switch	0°/180° selectable
Standby Modes	Auto (signal sense) or Always On
Inputs	Low Level (RCA), High Level (speaker terminals)
Outputs	High Level (speaker terminals)
Voltage Selector	115V / 230V switchable
Power Requirements	110-120/220-240V, 50/60Hz, 250W Max
Dimensions (WxHxD)	277 x 334 x 332 mm (excl. feet/knobs)
Weight	12.7 kg (28 lbs)
Cabinet Material	Medium Density Fiberboard (MDF)
Safety Features	Ventilation required, no user-serviceable parts
Cleaning Instructions	Soft cloth, dry or slightly damp; avoid moisture

Frequently Asked Questions - SB8 ATLANTIC

Where should I place the SB8 subwoofer for best bass?

Generally, place it near the front of the room close to a corner for more powerful bass. However, corner placement may cause a boomy effect in some rooms, so experiment by moving it away from walls to find the optimal position.

How do I connect the SB8 to my receiver?

Use the Low Level Input (RCA) if your receiver has a subwoofer or LFE output. If not, connect speaker wires from your receiver's main speaker terminals to the High Level Input terminals on the subwoofer, and set your receiver to 'Large' for left and right speakers.

What crossover setting should I use?

If your receiver has its own bass management, set the subwoofer's crossover to BYPASS. Otherwise, set it to ACTIVE and adjust the Crossover Control (55-200Hz). For small satellite speakers, a higher crossover (120-150Hz) is recommended; for larger speakers, use a lower setting.

What does the phase switch do?

The Phase Switch (0° or 180°) aligns the subwoofer's output with your main speakers. Try both positions and use the one that gives you the strongest bass at your listening position.

How do I use the standby mode?

Set the Standby Switch to AUTO for automatic standby: the subwoofer will turn on when it detects a signal and go to standby after a period of inactivity. Set to ON to keep the amplifier always on.

The subwoofer has no bass output. What should I check?

First, ensure the AC power cord is plugged into a working outlet. Verify that the input cables are securely connected and not defective. Also check that the subwoofer is not in standby (red LED) – if so, send a signal or switch to ON mode.

I hear a hum or buzz from the subwoofer. How can I fix it?

Check all input cable connections and try replacing the cable. If the hum persists, it may be a ground loop from your antenna or cable TV input. Disconnect those inputs to test; if the hum stops, install an isolation balun.

How do I clean the subwoofer cabinet?

Use a soft cloth, either dry or slightly dampened with clean water. Do not wet the cabinet or let water enter the seams. Avoid placing the subwoofer in direct sunlight or near heat sources.

Can I use the SB8 in a country with different voltage?

Yes. The Voltage Select Switch on the rear panel allows you to choose between 115V and 230V. Ensure it is set correctly for your location before connecting to power. The unit is compatible with 110-120V or 220-240V, 50/60Hz.

What are the dimensions and weight of the SB8?

Dimensions (WxHxD) are 277 x 334 x 332 mm (10.9 x 13.1 x 13.1 inches) not including feet and rear knobs. Add 45mm for feet and 38mm for knobs/grille. Weight is 12.7 kg (28 lbs).

USER MANUAL SB8 ATLANTIC

High Performance Powered Subwoofer

Safety Precautions

CAUTION

RISK OF ELECTRIC SHOCK DO NOT OPEN

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 to the rear panel of the unit.

The lightning flash with arrowhead, within an equilateral 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 constitute 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.

Model SB8 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)	10 1/8 x 13 1/8 x 13 1/16 ; 277 x 334 x 332mmadd 1.75" (45mm) H for feetadd 1.5" (38mm) D for knobs & grille
Weight	28lbs/12.7kg
Power Requirements	110-120/220-240V, 50/60Hz, 250W Max

SB8 Subwoofer Rear Panel

Figure 1

① Status LED

This will be green for "on" condition, red for "standby."

② 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.

③ 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.

④ Bass Level Control

Use this control to set the level of bass desired.

5 Crossover Control

An adjustable (55Hz to 200Hz) @ 18dB per octave low-pass crossover.

⑥ 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.

⑦ Low Level Input

Use the input to connect to the subwoofer or LFE line out from your processor/receiver.

⑧ High Level Output

Connect main Left/Right speakers here when using the High Level Input.

⑨ 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 connections. Set the SB8's crossover to "Lowpass," and adjust accordingly. Make sure to set your receiver to "Large" for Left and Right speakers.

10 AC Input

Use the included power cord to connect your amplifier to a wall outlet.

⑪ 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.

⑫ Product Serial Number

Write this number in the space provided on page 2 for future reference.

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.

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 system 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 crossovers, 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 frequency. 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.

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 encounter 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 plugged into a non-working outlet.	Plug into a working outlet.
	Input cables not securely connected or defective.	Check all connections, then try another input cable.
Audible buzz or hum	Input cable not securely connected or defective.	Check all connections, then try another input cable.
	Ground loop through antenna or cable TV system input.	Test by disconnecting antenna and/or cable system input leads. If hum goes away, install isolation balun(s) at that point.