Ahuja SWX-200P User manual

OPERATION MANUAL
OPERATION MANUAL
PoweredSubwoofer
100W RMS
®
SWX-200P
Thank you for purchasing the AHUJA Powered Subwoofer.
Please read this manual thoroughly before making connections and turning on the power. Following
the instructions in this manual will enable you to obtain optimum performance from your new
AHUJA Powered Subwoofer.
Please retain this manual for future reference.

CAUTION: No user serviceable parts inside. Refer
servicingtoqualifiedpersonnelonly.
WARNING: To reduce the risk of fire or electrical shock,
donotexposethisequipmenttorainormoisture.
Detailed Safety Instruction: All the safety instructions in this manual should be read before operating this
product.
RetainInstructions:Theoperationmanualshouldbekeptforfuturereference.
FollowInstructions:Alloperationandsafetyinstructionsshouldbefollowed.
Water and Moisture: In order to prevent any fire or shock hazard, do not expose this equipment to rain or
moisture.
PowerSource: Theequipmentshouldbeconnectedtoa220-240V50HzACpowersource.
Power-cord Protection: Donotcut,kink,damageormodifythepowersupplycordsuppliedwiththeequipment.
Keepthepowersupplycordawayfromheaters&harmfulchemicals.Donotplaceheavyobjectsonthepowercord.
Operation on Generator: When operating the powered speaker on a generator, make sure it is switched 'OFF'
tillthegeneratorvoltageshasstabilizedandthenonlyswitchthepoweredspeaker'ON'.
Protection Against Shocks: Do not plug in or remove the power supply plug with wet hands so as to avoid
electricshock.
Replacing AC Mains Fuse: After disconnecting theAC mains and rectifying the defect in the amplifier, change
thefusewithanotherofthespecifiedratingonly.
Exposure to Hot Region: DonottouchtheHeatSinkwhilethePoweredSubwooferisinoperation.
Thissymbol,whereveritappears,alerts
you to the presence of uninsulated
dangerousvoltageinsidetheenclosure,
thatmay be sufficientto constitutea risk
ofshock.
This symbol, wherever it appears,
alerts you to important operating
and maintenance instructions in
the accompanying literature. Read
themanual.
• Safety Instructions
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
2
SWX-200P

Contents Page No.
Features/General Description of Product . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
RearPanelControls&Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Interconnections................................................................6
Placement/Operationof Product . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
TypicalApplications.............................................................8
Block Diagram& Specifications ................................................12
• Table of Contents
3SWX-200P

• Features/General Description of Product
4
ThisPoweredSubwooferhasbeendesignedsolelyforthereproductionof
theSuperbassRange.
Easytoinstallandwithuserfriendlyoperations,itcanbesimplyconnected
to an existing music as well as PA system to enjoy powerful bass
reproduction.
A single SWX-200P working with six to eight satellite speakers forms an
idealBusinessmusicsystemforanareaupto2400sq.ft.(240sq.mtrs.)
Housed in an elegant PVC coated wooden cabinet.Available in OAK and
Blackfinish.
VentedDown-firingspeakerSystemusingan8”highoutputLFdriver.
Built-in 100W low distortion, direct coupled amplifier to produce powerful
bass.
SWX-200P has two unbalanced independent inputs. One accepts signals
of200mVandtheotheraccepts1Vsignals.
Built-in fourth order electronic Low pass filter, with selection of 80 / 120Hz
cut-off frequencies.The 80 / 120Hz crossover points facilitates matching
withanybackgroundorforegroundspeakersystem.
Built-in Subsonic filter to keep out unwanted noise such as hum and
rumble,forprotectionofthespeaker.
SWX-200P

• Rear Panel Controls & Description
5SWX-200P
11
10
9
8
234567
12
1
1. POWER Switch 8. VOLUME Control
For adjusting the output level of the subwoofer.
2. POWER LED
This LED glows when the power is switched ON. 9. Crossover Frequency Selector Switch
This switch selects the high frequency at which
3. CLIP LED the signal to the subwoofer is cut off. 80Hz or
This LED glows when the output is at clipping 120Hz can be selected.
level. 10. Preamplifier Input Jack Socket
4. RESET Button For accepting an unbalanced signal from a
This button pops out when the circuit protector cassette player/ recorder or the preamp out of an
trips. The circuit protector prevents the powered audio amplifier. Sensitivity is 200mV.
subwoofer from getting damaged on account of
short circuits, DC offset and Overdrive conditions. 11. Line Input Jack socket
Rectify the cause and press the RESET button For accepting an unbalanced signal from an
for resetting normal operation of the subwoofer. audio mixing console or the line out of an audio
amplifier. Sensitivity is 1V.
5. FAULT LED
This LED glows in either case when the output is 12. AC Inlet socket with built in fuse (Rating 10
shorted, in case of DC offset or overdrive AMP 250V)
conditions. Connectthe providedACMainscableinthissocket
for AC mains operation. The fuse protects the
6. RESET Button amplifier from any excessive current flow. An
7. FAULT LED additional3Afuseisalsoprovidedasanaccessory.
20Hz
1

6
• Interconnections
SWX-200P
Amplifier
Line Output
TOP VIEW
SWX-200P
CLIP
AM/FM Auto Reverse Cassette Amplifier
FM/ AMFM/ AM
BGM-800
Hi Line Output
Preamp Output
Preamp
Output
Preamp
Output
Amplifier
Cassette Recorder
The amplifier must be powered through an AC The 200mV sensitivity input jack can be used for
earthed mains outlet. accepting an unbalanced signal from a Cassette
player / recorder or the preamp output of an audio
All connections must only be carried out or changed amplifier.
with the amplifier switched OFF. The 1V sensitivity input jack can be used for
The SWX-200P has two unbalanced independent accepting an unbalanced line level signal from a
inputs. One accepts signals of 200mV and the other Audio mixing console or the line output of an audio
of 1V signals. amplifier.
AMX-1412
PA Mixer
Microphones

7
• Placement / Operation of Product
SWX-200P
Placement
As a general rule, bass response increases as a
subwoofer is placed on the ground closer to a wall.
Therefore the bass output is maximized when the
subwoofer is placed in a corner. Positioning your
powered subwoofer as recommended should
provide the best results. But since every facility has
different acoustical characteristicsAhuja
recommends experimenting with the positioning of
your subwoofer to obtain the most pleasing results.
Power
The SWX-200P is equipped with a Main power
switch. In order to function the SWX-200P must be
plugged into an active electrical outlet, and the
Main power switch must be turned on.
Level control
The subwoofer volume control adjusts the output
level of the subwoofer relative to the rest of the
system. Proper level adjustment depends on
several variables such as room size, subwoofer
placement and type of satellite, wall or ceiling
speakers used. The subwoofer level should be
adjusted so that volume of bass information seems
pleasing. In case the CLIP LED flickers, it is
recommended to turn down the output level from
the subwoofer. This will prevent the excess power
from damaging the SWX-200P woofer.
Crossover Adjustments
The crossover frequency selector switch located
on the top chassis of the powered subwoofer
SWX-200P determines the highest frequency at
which the subwoofer reproduces the bass sound.
When using larger speakers that reproduce
sufficiently low frequencies, for exampleAhuja
model PS-400T and PS-500T, set this switch to 80
Hz. This will concentrate the subwoofers efforts on
the ultradeep bass sounds required by todays films
and music. If you are using smaller speakers
example Ahuja model PS-300T, Ahuja ceiling and
wall speakers whose response does not extend to
the lower bass frequencies then set the low pass
crossover switch to 120Hz.
Subwoofer Effects
Adding a subwoofer to your speaker system
expands the bandwidth of the bass range.
However, if the subwoofer’s reproduction
bandwidth or sound output level is improperly
adjusted, the overall performance may decrease,
as shown in the graphs below.

8
• Typical Applications
SWX-200P
High performance stereo music system for a small enclosed area
4040-SM
Microphone
SWX-200P
PS-300T
Left Speaker Output
Mic Input
Right Speaker Output
CD Input
L & R
'Y' Cord
200mV Input
Connect the left and right outputs of the CD player Feed the Line output of 4040-SM (line output level
to the left and right CD inputs of Stereo Cassette is 200mV) to the 200mV input of the subwoofer
Recorder 4040-SM using a patch cord with RCA SWX-200P through a 'Y' cord (with 2 nos. RCA
plugs at both ends. The CD input sensitivity is Plugs on one end and a ¼" phone plug at the other
selected through a CD / Aux switch in 4040-SM. end).
A paging microphone can also be connected to the Place the subwoofer preferably in any corner on
mic input of the 4040-SM to make announcements. the floor, with the reflecting port preferably not
facing the corners.
Connect 2 nos. of high fidelity 2-way speakers
PS-300T (at 8 ohm tap) in parallel (resulting Set the Crossover frequency of the subwoofer to
impedance is 4 ohm), across the left output 120 Hz and adjust the volume control to obtain
terminals of 4040-SM. These form the left channel optimum performance.
of the stereo system.
Similarly connect 2 nos. of PS-300Ts across the
right output terminal of 4040-SM to form the right
channel of the stereo system.
Line Out
L & R
PS-300T PS-300T PS-300T
CD Player

9
• Typical Applications....
SWX-200P
High performance zonal music system
TZA-2000 CD Player
Aux Input 'Y' Cord
100V Line
Zone B
Line Output
Zone B
100V Line
Zone A
Line Output
Zone A
SWX-200P
(A)
TZA-2000
Connect the left and right outputs of the CD player For providing background music on the other floor,
to either of the two Aux inputs of Ahuja two zone which may have lesser ceiling height, it is
amplifier TZA-2000 using a 'Y' cord (with two RCA recommended to use 12 nos. of Ahuja ceiling
plugs at one end and a ¼” phone plug on the other speakers CS-6081T (at 8 watts tap) connected to
end). the 100V output terminal of Zone B of the amplifier
TZA-2000.
A paging microphone can also be connected to
any one of the mic inputs of the two zone amplifier Feed the Line output from Zone B of the amplifier
TZA-2000 to make announcements. TZA-2000 to the 1V input of the subwoofer SWX-
200P (subwoofer B), using a patch cord of suitable
The Mono / Stereo switch of the amplifier length with ¼” phone plugs on both ends.
TZA-2000 should be kept in Mono position. Place the subwoofer 'B' preferably in any corner on
6 nos. of Ahuja ceiling speakers CS-8151T (at 15 the floor, with the reflecting port preferably not
watts tap) can be connected to the 100V output facing the corners.
terminal of Zone A of the amplifier TZA-2000. Set the crossover frequency of each subwoofer to
Feed the Line output from Zone A of the amplifier 120Hz and adjust their respective volume controls
TZA-2000 to the 1V input of the subwoofer SWX- for optimum performance.
200P (subwooferA), using a patch cord of suitable
length with ¼” phone plugs on both ends. Both the zones of the TZA-2000 have independent
tone and master controls, which can be adjusted
Place the subwoofer 'A' preferably in any corner on as per system requirements.
the floor, with the reflecting port preferably not
facing the corners.
This combination of CS-8151Ts and SWX-200P
(subwoofer A) provides background music for one
floor.
SWX-200P
(B)
1V Input
Microphone
Mic
Input
1V Input
CS-8151T
Floor 2
Floor 1
CS-6081T
Floor 2
Floor 1

10
• Typical Applications....
SWX-200P
High performance music system for large enclosed area
SSA-350 'Y' Cord
SSA-350
Connect the left and right outputs of the CD player Place the subwoofers preferably in any corner on
to the Aux-2 input (200mV) of Ahuja PAamplifier the floor, with the reflecting port preferably not
SSA-350 using a 'Y' cord (with two RCA plugs at facing the corners. Also, it is recommended to
one end and a ¼” phone plug on the other end). place the two subwoofers together. Keeping them
far apart may result in the loss of bass effect at
A paging microphone can also be connected to some locations.
any one of the mic inputs of SSA-350 to make
announcements. Set the crossover frequency of each subwoofer to
80Hz and adjust the volume control to deliver
10 nos. of Ahuja high fidelity 2-way speakers optimum performance.
PS-500T (at 32 watts tap) can be connected to the
100V output terminal of amplifier SSA-350.
Connect the Line output of the amplifier SSA-350
to the 1V inputs of the two powered subwoofers
SWX-200P, using a 'Y' cord (with ¼" phone plug at
one end and two ¼" phone plugs at the other end).
1V Input 1V Input
100V Line Output Line Output
Aux-2 Input
PS-500T SWX-200P
(B)
SWX-200P
(A)
Microphone
Mic
Input
CD Player
'Y' Cord

11
• Typical Applications....
SWX-200P
5.1 home theatre system
Connect the Digital Out of DVD player to Digital In Use a patch cord of suitable length with an RCA
of the AV Receiver using a patch cord with RCA plug at one end and a ¼” phone plug on the other
plugs at both ends. end (most modern AV receivers have RCAjacks
for input and output connections).
Connect 5 nos. of Ahuja high fidelity 2-way
speakers PS-500T (at 8 ohm tap) to theAV Place the subwoofer preferably between the front
receiver (all modern AV receivers have separate speakers, with the reflecting port preferably not
output connections for each of the five satellite facing the corners.
speakers). The output level of the satellite Set the crossover frequency of the subwoofer to
speakers can be adjusted from the AV receiver. 80Hz and adjust the volume control to deliver
When using the powered subwoofer SWX-200P in optimum performance.
conjunction with AV amplifiers and receivers with
surround capability, connect the subwoofer pre out
terminal located on the back panel of the AV
receiver to the 200mV input of SWX-200P.
SWX-200P
PS-500T
Surround Right
PS-500T
Front Right
PS-500T
Surround Left
PS-500T
Front Left
Digital Out
PS-500T
Centre
AV Receiver
Subwoofer Preout
Front Right
Centre Out
Surround RightFront Left
Digital In
DVD Player
Surround Left
200mV Input

• Block Diagram & Specifications
• Design and Specifications are subject to change without notice owing to continuous product upgradation.
• Technical specifications are subject to production tolerances.
1K/02/05
TRUSOUND PVT. LTD. • C-89, Sector IV, Noida, Gautam Budh Nagar-201 301 (UP)
Regd. Office : 125E, Okhla Industrial Estate, New Delhi-110 020
Tel.: [phone] Fax : [phone]
Model SWX-200P
Amplifier Power 100W RMS at 0.5% THD
90W RMS at 0.05% THD
System Down-Firing Speaker System
Speaker Woofer 203 mm (8")
SPL (1W/1m) 90dB
Frequency Response (-3dB) 27Hz - Crossover Frequency
Subsonic Filter 4th Order : 27Hz
Crossover Frequency Switchable : 80Hz & 120Hz
Low Pass Filter 24dB/octave
Output Regulation 0.5dB
Input Channels 1 × Input 200 mV/10k
1 × Input 1V/10k
S/N Ratio 75dB
Protection AC : Fuse 1 × 3A
DC : 2 × 4A Circuit Protectors
Power Supply AC : 220-240V 50/60Hz
Finish Oak or Black PVC Laminate
Dimensions W355 × H435 × D450 mm
Net Weight 21.0kg
Block diagram
Specifications
200mV
INPUT
1V
INPUT
GAIN GAIN
VOLUME BUFFER SUBSONIC
FILTER BUFFER
80Hz 120Hz
POWER
DC OFFSET
PROTECTION
CLIP LED
SUB WOOFER
LPF SELECTOR
SWITCH
BUFFER
POWER
+18V
VOLTAGE
REGULATOR
AC FUSE
AC
220-240V
50Hz
POWER
S/W POWER Tx.
+50V
-50V
O/L
O/L