SA-180 monoblock amp

SA-180 monoblock amp
BASS LEVEL
PHASE
0
MIN
REF
180
MAX
SA-180 High-Current Subwoofer Amplifier
This manual covers installation and operation of SA-180 Mono Subwoofer Amplifier. Installation of the IWTS-28 SUB Woofer Module is
covered separately by an instruction sheet included with the woofer.
Instruction Manual
SA-180 Mono Subwoofer Amplifier
2
Safety Precautions
InWall Subwoofer System
Safety Precautions
Table of Contents
3 Features
3
3
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, 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.
4
5
6
7
7
7
SA-180
Unpacking
In-Wall Subwoofer Systems
Amplifier Front Panel
Amplifier Back Panel
Installation and Configuration
Power Control Connections
Remote Turn-On From An External Device Using The Low
Voltage Trigger
8 SA-180 Low Level Connections
9
9
10
10
Remote Turn-On Using Music Sense
Speaker Wire Connections
Audio Signal Connections
AC Power Connection
10
10
Bass Level Control
Phase
10 Operation
11 Caring For Your Amplifier
11 Amplifier Troubleshooting Guide
11 Specifications
For Future Reference
Record your serial numbers and date of purchase here:
Model Number
Serial Number
Date of Purchase
The amplifier serial number is found on the amplifier's 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. All rights
reserved.
Features 3
Instruction Manual
Features
Unpacking
■
The carton and packing materials used in shipping your new amplifier
were specially designed to cushion it from the shocks and vibration
of shipping. We strongly suggest that you save the carton and packing
materials to use if you move, or if the unit ever needs to be shipped
back to us for any reason. To minimize the size of the carton in storage,
you may wish to flatten it by carefully opening the top and bottom flaps
and folding the carton flat. Other cardboard inserts may be stored in
the same manner. Packing materials that cannot be collapsed should be
saved along with the carton in a plastic bag.
Linear high current discrete Class AB power amplifier conservatively rated at 180 watts RMS with short term peak output
ability in excess of 300 watts
The design utilizes audiophile grade component parts including a
high-current custom-wound, low-hum toroidal transformer.
■
A useful in room working frequency range of 30 Hz to 150Hz
with IWTS-28 SUB woofer module.
■ Two position Phase Invert switch
Allows precise acoustic matching with satellite speaker systems
whose output may be phase reversed. May also help to compensate
for unusual room acoustics that can occur, causing a lack of or too
much bass at the listening position.
■
A convenient front panel mounted Level Control with a clickstop REF input sensitivity setting
■ Automatic standby operation with LED indicator
Features signal sensing turn-on with 7-10 minute turn-off delay; can
also be controlled by an external 12 Volt trigger.
■
■
Heavy-Duty detachable AC power cord and input socket
Meets all current UL/CSA and European safety requirements
4
InWall Subwoofer Systems
InWall Subwoofer System
InWall Subwoofer Systems
Congratulations on your purchase of an Atlantic Technology InWall
Subwoofer System. This unique “invisible subwoofer” will enhance your
listening pleasure dramatically, by providing the bass foundation upon
which most music and special effects are built.
The InWall Subwoofer System is capable of delivering very high output
levels and wide dynamic range. When properly set up and adjusted it will
provide smooth in-room bass response down to approximately 30 Hz,
with a peak SPL capability in excess of 102 dB (using two dual woofer
modules and two SA-180 amplifiers, in a 3000 cubic foot space).
Figure 1
Your Atlantic Technology powered subwoofer system is designed to
smoothly integrate with virtually all other brands of loudspeakers on
the market. And from its premium gold plated connectors to its superb
high-quality electrical components, this is one of the most unique high
performance subwoofers ever produced.
Figure 2
BASS LEVEL
PHASE
0
MIN
REF
180
MAX
SA-180 High-Current Subwoofer Amplifier
Amplifier Front Panel 5
Instruction Manual
Amplifier Front Panel
Figure 3
BASS LEVEL
PHASE
180
0
MIN
REF
1
1
3-Color LED Status Indicator
Green: Indicates the SA-180 is on and operational.
Red: Indicates the SA-180 is in Protect mode. Turn the unit off
and check for the source of the condition that caused the overload.
This may be a shorted speaker lead or other similar condition. In
the event of repeated appearance of the red LED you may have a
chronic system failure with either the SA-180 or another component in your system. In this case disconnect the SA-180 from AC
power and the rest of your system and consult Atlantic Technologies Customer Service Department for assistance.
SA-180 High-Current Subwoofer Amplifier
2
2
3
BASS LEVEL control
Sets the volume level of the connected subwoofer. A detent setting
is provided for reference level operation.
The front panel LED indicator has three modes:
Amber: Indicates the SA-180 is connected to an AC power source
and the rear-panel Main Power switch is turned on. When the
indicator is amber, the unit is in the Standby mode and is ready
to turn on when a control signal is received at the trigger jack or
from the music sense circuitry.
MAX
3
phase control
Sets correct subwoofer phase (0° or 180°) to best match your satellite speakers and room.
6
Amplifier Back Panel
InWall Subwoofer System
Amplifier Back Panel
2
Figure 4
3
4
IN TRIGGER OUT
WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK,
DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE.
OUTPUT
THRU
AVIS: RISQUE DE CHOC ELECTRIQUE-NE PAS OUVRIR
POWER
AC INPUT
INPUT
1
1
012
LF EQ
5
12V
ON
MUSIC
TRIGGER MODE
6
50/60Hz 350W MAX
7
Input jack
Thru Jack
An input thru jack is provided to allow daisy-chaining to another
amplifier. The signal at this jack is identical to the input signal.
3
4
Trigger Output Jack
When more than one Model SA-180 is used in an system, this
jack may be used to pass the low voltage control signal through
to the Trigger Input Jack of an additional SA-180. (See pg 9 for
more details)
NOTE: Connecting more than two SA-180 to a single source controller may overload the system and is not recommended. If you wish to
automatically turn on more than two Model SA-180 units, we recommend the use of either the music sense circuitry or an externally powered relay controller. Contact Atlantic Technology Customer Service for
more information on using the Model SA-180 in multiple unit systems
to avoid damage to your processor, receiver or controller.
5
LF EQ Position Selector
This three-position switch select between three levels of bass
equalization.
0: No Equalization. The SA-180 fucntions as a full-range monoblock amplifier
1: 3 dB of boost @ 50Hz
2: 7 dB of boost @ 50 Hz
6
Trigger Mode Switch
This three-position switch determines the method by which the
SA-180 will be placed in the active, or ON, position:
•When the switch is in the far left position, above the word “ON,”
the unit will be turned on whenever the Main Power Switch is
turned on.
9
10
•When the switch is in the far right position, above the “12V”
indication, the unit will automatically turn on when a 6-volt to
35-volt signal is applied to the Trigger Input Jack. The unit will
turn off shortly after that signal is removed.
Trigger Input Jack
Connect this jack to the trigger output jack of a compatible product
such as an audio processor or receiver that is capable of providing a 6-volt to 35-volt control signal at turn-on. When the Trigger
Mode switch is set to the 12 Volt position, the Model SA-180 will
turn on when the control signal is present. Tip of plug is positive.
See page 9 for more details.
8
•When the switch is in the middle position, above the word
“MUSIC,” the unit will automatically turn on when an audio signal is present at the Input Jacks. The unit will automatically turn
off when the signal is no longer present for 5-10 minutes.
Connect this jack to the output of the source used to feed the
SA-180, usually the sub out or LFE jack.
2
INPUT
VOLTAGE
115V
MODEL SA180
7
Speaker Output Jacks
These jacks provide the amplified signal for connection to your
subwoofer module.
8
AC Power Switch
Turn this switch to the ON position to operate the SA-180.
9
AC Power Cord Receptacle
Connect the AC power cord supplied with the unit to this receptacle, and connect the power cord plug to an AC outlet.
IMPORTANT NOTE: A replacement power cord's rating must be
equal to or better than the cord supplied with the unit.
10
Input Voltage Switch
This switch selects the power AC input voltage for the SA-180,
depending on the AC power system used in your area.
IMPORTANT NOTE: Do not make any change to this switch setting
unless the ac power cord is removed from the unit so that the amplifier
is totally disconnected from any AC power source.
Fuses (Internal Now Shown)
The fuses (2) are used to protect the power supply only and are
NOT part of the speaker protection circuitry. If you suspect that
a fuse has blown, first disconnect the SA-180 from the AC power
source by removing the power cord, and then correct the condition
that led to the blown fuse.
IMPORTANT NOTE: The replacement fuse should have the proper
rating for the voltage setting in use and must be of the correct type.
Consult the data printed next to the fuseholder for fuse information.
If the fuse blows repeatedly, discontinue use of the product and
contact Atlantic Technology Customer Service for further assistance.
Installation and Configuration 7
Instruction Manual
Installation and Configuration
Remote Turn-On From An External Device Using
The Low Voltage Trigger
SAFETY NOTE: When making connections between any source
To configure the Model SA-180 so that it
components such as A/V Receivers, surround processors or multiIN TRIGGER OUT
turns on automatically in response to a low
room controllers and the Model SA-180, or when making any convoltage trigger
signal, follow these steps:
OUTPUT
nections to speakers, be certain that both the source device and
the Model SA-180 are turned off. To ensure that there will be no THRU
AC INPUT
POWER
unwanted signal transients that can damage equipment or speakMODEL SA180
ers, it is always best to unplug all equipment before making any
1. Place the Trigger Mode Switch in the far right position, so
012
12V the words “12V”.
ON is under
connections. Modern electronic products often have a “standby” INPUT
that the switch
LF EQ
MUSIC
mode that may be unintentionally activated even though they
MODE from a device such as a surround
2. To triggerTRIGGER
the amplifier
product may appear to be turned off.
50/60Hz 350W MAX
WARNING: TO RE
DO NOT EXPO
AVIS: RISQU
Power Control Connections
Depending on your specific application, the unit may be turned on manually using the Rear Panel AC Power Switch, or automatically via sensing of either an input source or a low voltage trigger signal. For manual
operation, no special installation is required.
For automatic turn-on, follow the instructions below for the chosen
method.
processor, A/V Receiver or multi-room controller with a
built-in trigger jack, connect one end of a cable with a
3.5mm mono mini-plug to the Trigger Input Jack on the
Model SA-180. Connect the other end to a matching jack
on the device that will provide a 6 to 25 volt signal when
the unit is to be turned on.
4. Set the Power Switch to the on position.
When the source control unit providing the power is turned on, the Model
SA-180 will automatically turn on. When the source unit is turned off,
the Model SA-180 will return to the standby mode.
NOTE: If the source controller does not have a trigger jack, you
may use the music sense option to automatically turn on the
Model SA-180, however, you may also use the trigger mode if
the source controller has a switched AC Accessory outlet. If that
is the configuration you wish to use, purchase a small AC to DC
power converter, as typically used to replace the batteries in portable electronics devices. Select a model that is capable of delivering between 6 and 25 volts DC, and make certain that one of the
“tips” provided with the unit is a 3.5mm mini-plug. Plug the transformer end of the converter into the switched AC output on the
source product, and connect the 3.5mm mini-plug to the Trigger
Input Jack. The tip of the plug is positive.
8
Connections
InWall Subwoofer System
SA-180 Typical Installation Connections
Figure 8
Sub Out/LFE
IN TRIGGER OUT
OUTPUT
THRU
POWER
AC INPUT
INPUT
012
LF EQ
12V
MUSIC
TRIGGER MODE
ON
+
+
IWTS-30 SR
INPUT
VOLTAGE
115V
MODEL SA180
50/60Hz 350W MAX
–
–
IWTS-30 SR
IN
Installation and Configuration 9
Instruction
TRIGGER
OUT Manual
WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK,
DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE.
OUTPUT
Remote Turn-On Using Music Sense
AC INPUT
AVIS: RISQUE DE CHOC ELECTRIQUE-NE PAS OUVRIR
The terminals of the SA-180 are designed to allow the use of heavy
wire or connectors. Be sure to tighten them securely, but don’t
over-tighten them.
INPUT
VOLTAGEspeaker
To configure the Model SA-180 so that it will automati-
012
LF EQ
12V
MUSIC
TRIGGER MODE
ON
cally turn on when the amplifier is receiving an audio
signal, follow these steps:
115V
POWER
50/60Hz 350W MAX
 Connect the audio input as normal to the Input Jack .
WARNING: To prevent risk of electrical shock or damage to your equipment, always switch
off the amplifiers when making any system connections.
You can connect your subwoofer to the SA-180 by using a variety of audio
connectors such as banana plugs (single or double), pin connectors,
spade lugs, etc; or you may simply use the bared wire itself:
 Turn the Trigger Mode Switch so that it is in the center position under
the word “Music.”
 Make sure the AC Power Switch is turned on. The front panel LED
1. Remove ½” of insulation from each wire end.
will turn amber, indicating that the unit is in the Standby mode,
awaiting a signal that will activate the operational mode.
In this configuration, the Model SA-180 will automatically turn on
whenever it is receiving an audio input signal. The unit will return to the
standby mode a few minutes after the audio signal stops.
Speaker Wire Connections
It is always best to connect the amplifier to your speakers using high
quality cable. The Model SA-180 is equipped with
ER OUT
five-way binding post terminals that accept bare wire,
OUTPUT
spade lugs or banana type plugs (when permitted by
local
safety agencies). ToACassure
INPUTthat the high quality
INPUT
POWER
VOLTAGE
signals produced by your Model SA-180 are carried
to
your speakers without loss of clarity or resolution, we
12V
ON
MUSIC
recommend that you use high quality speaker cable.
RIGGER MODE
Many brands of cables
are available,
50/60Hz
350W MAXyour choice may
be influenced by a number of factors; i.e.: the distance
between your speakers and the amplifier; the type of speakers you use;
personal preferences; and other factors.
WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK,
DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE.
115V
AVIS: RISQUE DE CHOC ELECTRIQUE-NE PAS OUVRIR
Regardless of the brand or type of cable selected, we recommend using
a cable constructed of fine, multi-strand copper with a gauge of 14 or
larger. Remember, that in specifying cable, the lower the number, the
thicker the cable. Cables with a gauge of 16 may be used for short runs
of less than ten feet. We do not recommend that you use any cables with
an AWG equivalent of 18 or higher due to the power loss and degradation in performance that will occur.
Cables that are run inside walls should have the appropriate markings
to indicate listing with, and approval by, UL, CSA or other testing agency.
Questions about cables inside walls should be referred to a qualified
installer or a licensed electrical contractor who is familiar with the NEC
and/or the applicable local building codes in your area.
As a general rule, always avoid running input signal or speaker wire connections in parallel with each other, or with AC power cords. This can
result in undesired hum or other interference that will greatly degrade
signal performance.
2. Twist the strands of each of the wires together, keeping
the two wires separate.
3. Place the appropriate wire through the hole in the
appropriate connector. This hole is revealed when you
loosen the connector’s knob.
4. Screw down the knob firmly to clamp the wire, but be
careful not to over tighten it.
5. Check the tightness of these knobs 24 hours after hookup
and occasionally after that, as they can loosen over
time.
When using any wire connector, follow the manufacturer's assembly and
usage instructions. We recommend that you check your local electrical
codes to make sure that you are not using improper connectors (for
example, "banana" plugs are not allowed in some areas).
It’s important to observe polarity while making speaker connections:
red (+) terminal on the amplifier to red (+) on the speaker, black (–) on
the amplifier to black (–) on the speaker. Look carefully at the wire you
are using and note that one of the conductors of the pair will typically
be identified by color, printing on the outer jacket, ridges on the outer
jacket, or a thread intertwined with the wire strands. By convention, the
marked wire is connected to the red (+) terminal.
R
Operation
IN TRIGGER OUT
WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK,
DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE.
OUTPUT
THRU
Connections with RCA type plugs:
POWER
When making connections with the “RCA” type
0 1 2 on interconnect
plugs
cables, make certain to gen12V
ON
INPUT
LF
MUSIC them into the jack marked
tly,EQ
but firmly insert
Input on theTRIGGER
back ofMODE
the Model SA-180. Loose connections can cause intermittent sound and may damage your speakers.
The barrel assembly of some high quality RCA plugs may be very tight,
and it is important to ensure a proper connection between the interconnect cable and the input jack.
WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK,
DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE.
AC Power Connection
AVIS: RISQUE DE CHOC ELECTRIQUE-NE PAS OUVRIR
AC INPUT
The finalINPUT
step in the installation of the Model
SA-180 isVOLTAGE
to connect the power cord. First, connect
the female end of the cord into the AC Power Receptacle on the rear panel. Once the cord as been firmly
connected to the SA-180, insert the plug end into an
AC power outlet.
50/60Hz 350W MAX
Operation
InWall Subwoofer System
AVIS: RISQUE DE CHOC ELECTRIQUE-NE PAS OUVRIR
INPUTIn normal use there are no
Operation ofAC
theINPUT
Model SA-180 is simple.
VOLTAGE
controls other than LEVEL and PHASE
to adjust once the installation is
complete. After all connections have been made to the amplifier’s inputs
and speaker terminals, and the AC power cord has been connected, the
50/60Hz
way in which
the350W
unit MAX
turns on is determined by the setting of the Trigger Mode Switch. Depending on the setting, as described on page 6, the
amplifier will turn on in one of these three ways:
115V
Audio Signal Connections
115V
180
10
 When the Trigger Mode Switch is set to the left, in the “On” position,
the Model SA-180 will turn on when the AC Power Switch is turned
on. Use the AC Power Switch to turn the Model SA-180 off when
you're finished listening.
 When
the Trigger Mode Switch is set in the center, in the “Music”
position, the AC Power Switch should be turned ON to place the
Model SA-180 in the Standby Mode.The unit will automatically turn
on whenever an audio signal is present. The unit will return to the
Standby mode a few minutes after the audio signal is removed.
 When the Trigger Mode Switch is set to the right, in the “12V” posi-
Safety Notes
 Due to the current draw of the Model SA-180, DO NOT connect the
power cord to the accessory outlet of an audio/video component.
 Should the power cord become lost or damaged, be certain to replace
it with a cord that meets or exceeds the original specifications. Use
of power cords with insufficient capacity, such as those used with
computers or office equipment, may create a safety hazard.
tion, the AC Power Switch should be turned ON to place the Model
SA-180 in the Standby Mode. The unit will automatically turn on
when a low voltage trigger signal is present at the Trigger Jack and
return to the Standby Mode when the trigger signal is removed.
As a general rule, it is always a good idea to turn on your amplifier LAST.
This avoids the possibility of any turn on-pops or transients from other
equipment being amplified and sent to your speakers where they may
cause damage.
Always start with a low volume level on your receiver, controller or preamp to avoid damage to your speakers.
SAFETY NOTE: To prevent unintended operation, remember
to turn the unit completely off when it will not be used for an
extended period of time. This is done by turning the AC Power
Switch OFF and noting that the front panel LED indicator goes off.
This will prevent the automatic turn-on circuits from accidentally
turning the amplifier on during your absence.
Bass Level Control
In most installations,
PHASE this is set to the "REF"
position , and the subwoofer's level is con180
0
trolled via the preamp/processor's subwoofer
level function. This front-panel control is used
MIN
MAX
when the preamp/processor has no such
REF
capability, or when the desired setting is outside the available range of the receiver's control.
BASS LEVEL
Phase
BASS LEVEL
PHASE
0
MIN
REF
MAX
180
The correct setting of this control is that which
provides the smoothest transition between the
subwoofer and the rest of the system. Try both
positions, and use the one which sounds best; in
most systems, 0° is preferred.
SA-380 Ser
Specifications 11
Instruction Manual
Caring For Your Amplifier
Subwoofer Troubleshooting Guide
IMPORTANT: Save Your Boxes! If you can do so, save the carton,
packing pieces and plastic bags that came with your subwoofer.
They will be useful in case you move or have to ship your subwoofer
for any reason. In any case, save all packing materials until you are
certain that the system has suffered no damage in shipment. If you find
such damage, either visible or internal, contact your dealer immediately
for the proper return procedure.
Once your system 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 find the solution. If the
problem persists, please 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.
Weak bass: vague stereo image;
especially when using dual sub/amp setup
Check speaker wire connections and/or
phase switch settings.
Specifications
Acoustic phase of subwoofer(s) doesn't
match rest of system.
SA-180
RMS Power (before limiting)
180 W @ 4 Ohms, <.025%THD
Signal to Noise Ratio (-90dB hum)
-97dB @ full power
Frequency Response (typical, in room)
30-150 Hz ±3 dB
Input Sensitivity
250mv @ full output, 100Hz
Input Impedance
15K Ω
Power Supply Storage
9.4K microfarads
Toroidal Transformer
400VA
Peak Output Stage Current
30amps rated
Dimensions W x H x D
8½" x 2" x 12½" (215 x 50 x 320mm)
Weight (lbs)
14lbs. (6.4kg)
343 Vanderbilt Avenue Norwood, MA 02062 (781) 762-6300 www.atlantictechnology.com
015-1028
Was this manual useful for you? yes no
Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Download PDF

advertisement