Niles Audio SWA-500M User's Manual
Contents
1. a If mounting the SWA 500M inside cabinet Allow a minimum of 3 1 2 of be sure the amp has proper ventilation depth behind unit to accommodate Consider using the Niles FM 1R or FM 1 cables and connectors system cooling module RACK MOUNTING THE SWA 500M 1 Before installing the rack ears remove the screws attached to the sides of the unit Install the included rack ears as shown in Figure 4 using a 2 Phillips screwdriver Do not use any other screws or damage to the amplifier may result 2 Place the SWA 500M in desired location within rack Support the weight of the amplifier from the bottom and carefully install the left and right lower rack ear screws first 3 Once the lower screws are completely installed you may release the bottom of the amplifier to install the left and right upper rack ear screws last 4 Connect the amplifier according to the type of system desired NOTE SEE APPLICATIONS STARTING ON PAGE 11 FOR DETAILED WIRING CONNECTIONS FOR YOUR APPLICATION Figure 4 Install the included rack ears as shown using a 2 Phillips screwdriver NILES AUDIO CORPORATION 1 800 BUY HIFI 3 5 CONNECTING THE SWA 500M CAUTION BEFORE MAKING ANY CONNECTIONS BE SURE TO TURN OFF ALL COMPONENTS IN THE SYSTEM INCLUDING LOUDSPEAKERS CONNECTION TO AUDIO VIDEO SOURCES The SWA 500M connects to audio video sources via RCA audio cables2. While playing a favorite music track adjust your system s volume control to a comfortable level and listen to the bass level at your favorite listening position e g couch Next move the LEVEL SETUP switch to MOVIE and play a favorite movie chapter preferably a movie with a good amount of low frequency information Listen to the bass level and if desired adjust the MOVIE LEVEL control to change the movie bass level to taste Move the LEVEL SETUP switch back to MUSIC and play the music track again If desired adjust the MUSIC LEVEL control to taste Continue listening to your favorite music and movie sources using the appropriate setting for LEVEL SETUP If you want a more solid sounding bass with less overtones try moving the LOW PASS FREQUENCY control toward the lower frequencies Experiment with different frequency settings until you find one that sounds best If needed readjust the MOVIE LEVEL and MUSIC LEVEL controls see steps 3 and 4 above Continue listening to your favorite music and movie sources using the appropriate setting for LEVEL SETUP Try experimenting with the PHASE control until you find its optimum setting Depending on the subwoofer s placement the bass should sound more pronounced when the phase has been optimized Once all of these steps have been followed you may use the rear mounted control for BASS 005 if you have not been able to achieve satisfactory bass performance Set this swi
3. INSTALLATION GUIDE FOR USE WITH NILES PASSIVE SUBWOOFERS SUBWOOFER AMPLIFIER SWA 500M CONGRATULATIONS Thank you for purchasing the Niles SWA 500M The SWA 500M is a Class D mono amplifier designed to power up to two passive non powered subwoofers Like all Niles products the SWA 500M is built to the highest standards of quality and reliability and with proper installation and operation you ll enjoy years of trouble free use Niles is one of the industry s most respected manufacturers of custom installation audio video components and accessories To see the complete line of Niles products visit us at www nilesaudio com TABLE OF CONTENTS Introduction Important Safety Instructions Features and Benefits Cleaning Installation Considerations Connecting the SWA 500M Controls and Connectors Signal Connectors and Power Controls Applications Calibrating the SWA 500M Checking Phase on the Satellite Loudspeakers Troubleshooting Guide Specifications Limited Warranty Warranty Registration Card 1 11 15 17 18 19 20 21 INTRODUCTION Bass or low frequency effect LFE is a critical part of a well designed audio video system The Niles SWA 500M is a highly efficient Class D amplifier designed specifically for up to two passive non powered subwoofers When combined with high quality subwoofers the SWA 500M will provide excellent bass reinforcement for home theater and home audio appl
4. 120 230 switchable internal AC Cord IEC Removable Two prong High Pot Test 2kV 2mA 60Hz 2 sec Variable Line Level Output High Pass 12dB Octave e 3dB 60Hz Knob full counter clockwise e 3dB 160Hz Knob full clockwise LIMITED WARRANTY NILES AUDIO CORPORATION NILES WARRANTS ITS LOUDSPEAKER PRODUCTS TO THE ORIGINAL PURCHASER TO BE FREE OF MANUFACTURING DEFECTS IN MATERIAL AND WORKMANSHIP FOR A PERIOD OF TWO YEARS FROM DATE OF PURCHASE THIS WARRANTY IS SUBJECT TO THE FOLLOWING ADDITIONAL CONDITIONS AND LIMITATIONS THE WARRANTY IS VOID AND INAPPLICABLE IF NILES DEEMS THAT THE PRODUCT HAS BEEN USED OR HANDLED OTHER THAN IN ACCORDANCE WITH THE INSTRUCTIONS PROVIDED BY THE MANUFACTURER INCLUDING BUT NOT LIMITED TO DAMAGE CAUSED BY ACCIDENT MISHANDLING IMPROPER INSTALLATION ABUSE NEGLIGENCE OR NORMAL WEAR AND TEAR OR ANY DEFECT CAUSED BY REPAIR TO THE PRODUCT BY ANYONE OTHER THAN NILES OR AN AUTHORIZED NILES DEALER TO OBTAIN WARRANTY SERVICE TAKE THE UNIT TO THE NEAREST AUTHORIZED NILES DEALER WHO WILL TEST THE PRODUCT AND IF NECESSARY FORWARD IT TO NILES FOR SERVICE IF THERE ARE NO AUTHORIZED NILES DEALERS IN YOUR AREA YOU MUST WRITE TO NILES AND INCLUDE YOUR NAME ADDRESS MODEL AND SERIAL NUMBER OF YOUR UNIT ALONG WITH A BRIEF DESCRIPTION OF THE PROBLEM A FACTORY RETURN AUTHORIZATION NUMBER WILL BE SENT TO YOU DO NOT RETURN ANY UNIT WITHOUT FIRST RECEIVING WRITTEN AUTHORIZATION AND SHIPPING INSTRUCTIONS
5. General 0ffice O Mail 0rder Catalog O Reputation y O Management O Newspaper Ad O SM A O Professional O Product Brochure E garance O Sales Marketing O Product Review y O Student O Retail Salesperson O Tradesperson O Internet O 0ther NILES BLENDING HIGH FIDELITY AND ARCHITECTURE Niles Audio Corporation 12331 S W 130 Street Miami Florida 33186 1 305 238 4373 1 800 BUY HIFI www nilesaudio com 2007 Niles Audio Corporation All rights reserved Niles the Niles logos and Blending High Fidelity and Architecture are registered trademarks of Niles Audio Corporation All other trademarks are the property of their respective owners D 00570A
6. The SWA 500M s signal connectors and power controls are located on the unit s rear panel as shown in Figure 7 The controls function as follows NOTE SEE APPLICATIONS STARTING ON PAGE 11 FOR DETAILED WIRING CONNECTIONS FOR YOUR APPLICATION 1 2 8 9 10 11 Z UE MES SPEAKER OUD eooo oo PHO Figure 7 Back Panel Control on the SWA 500M 1 12V POWER TRIGGER The SWA 500M can be turned on or off using the power switch on the back panel or it can turn on or off automatically via the 12V Power Trigger For external power triggering use a mini 3 5 mm plug to connect the IN jack to a power on off trigger signal from a home theater sound processor or receiver The back panel switch overrides this function and must be in the on position for the 12V power trigger to work The input accepts AC or DC control signals with power ranging from 3 Volts to 30 Volts Tip is positive Power off is 0 Volts DC or AC You can use the OUT jack to pass the POWER TRIGGER signal to another SWA 500M amplifier or other trigger activated device such as motorized speakers or rear effects speaker s dipole bipole mode Voltage will be present on the output jack whenever the amplifier is active This 8 is indicated by the green LED on the front panel NOTE FOR A HOME THEATER RECEIVER NOT EQUIPPED WITH A POWER TRIGGER 0UTPUT CONSIDER USING A NILES 12 VOLT POWER SUPPLY AS A TRIGGER SIGNA
7. qualified service personnel Servicing is required when the apparatus has been damaged in any way such as the power plug cord or plug is damaged liquid has been spilled or objects have fallen into the apparatus the apparatus has been exposed to rain or moisture does not operate normally or has been dropped 15 Do not expose this equipment to dripping or splashing and ensure that no objects filled with liquid such as vases or drinks are placed on the equipment 16 To completely disconnect this equipment from the AC mains disconnect the power supply cord plug from the AC receptacle 17 The main plug of the power supply cord shall remain readily operable FEATURES AND BENEFITS MAXIMUM SUBWOOFER PERFORMANCE The SWA 500M Class D amplifier is designed specifically for bass reinforcement for passive non powered subwoofers The SWA 500M provides 500 Watts Continuous Output Power 196 THD N into 4 ohm Because the SWA 500M s power output is dedicated to low frequency effects you ll get the maximum performance your subwoofer s can provide SMOOTH AND ACCURATE BASS The SWA 500M Class D amplifier will deliver strong smooth bass with breathtaking realism The advanced audio circuitry and high quality components inside the SWA 500M deliver fast and accurate power to your subwoofers Variable low pass variable high pass filters reduce unwanted frequencies so your subwoofers can focus on what they do best reproducing great low freq
8. to input is bad Connect another cable that is known to be good Audio cable to the main inputs is bad Connect another cable that is known to be good PROBLEM Hum or buzz sound from the loudspeakers Solutions Hum or buzz may be caused by a ground loop between two of the other components in the system To test for another ground loop try reversing the AC plugs of each of the components in the system PROBLEM Amplifier will not turn on Solutions Check for faulty cables faulty source material an ungrounded phono system or a defective component AC power cord must be plugged into a working outlet Master power switch must be on PROBLEM Bass sound is weak and the stereo image is phasey or blurry Solutions The loudspeakers are wired out of phase Reverse the connections at the back of one speaker 18 SPECIFICATIONS Continuous Output Power lt 1 THD N into 4 ohms 500 watts S N ratio gt 90dB Volume Max and Input Shield Grounded lt 2 0 mV Variable Low Pass Filter 12 dB per octave 3dB 40Hz minimum position 3dB 120Hz maximum position Fixed Low Pass Filter 6dB per octave 3dB 125Hz Variable High Pass Filter 12 dB per octave selectable switch Auto Turn on sensitivity 3 0mV 50 Hz input Input Sensitivity Rated Power 250 mV of input NILES AUDIO CORPORATION 1 800 BUY HIFI High Level Input Sensitivity Rate Power gt 3 volts of input Delay off time 15 20 minutes Power requirements
9. FROM NILES IF THE ABOVE CONDITIONS ARE MET THE PURCHASER S SOLE REMEDY SHALL BE TO RETURN THE PRODUCT TO NILES IN WHICH CASE NILES WILL REPAIR OR REPLACE AT ITS SOLE OPTION THE DEFECTIVE PRODUCT WITHOUT CHARGE FOR PARTS OR LABOR NILES WILL RETURN A UNIT REPAIRED OR REPLACED UNDER WARRANTY BY SHIPPING SAME BY ITS USUAL SHIPPING METHOD FROM THE FACTORY ONLY AT ITS EXPENSE WITHIN THE UNITED STATES OF AMERICA THERE ARE NO OTHER WARRANTIES INCLUDING WITHOUT LIMITATION EITHER EXPRESS OR IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE WITH RESPECT TO THE PRODUCT REPAIR OR REPLACEMENT AS PROVIDED UNDER THIS WARRANTY IS THE EXCLUSIVE REMEDY OF THE CONSUMER PURCHASER NILES SHALL NOT BE RESPONSIBLE FOR ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES EXCEPT TO THE EXTENT PROVIDED OR PROHIBITED BY APPLICABLE LAW SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF INCIDENTAL OR CONSEQUENTIAL DAMAGES 50 THE ABOVE LIMITATION MAY NOT APPLY TO YOU THIS WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS AND YOU MAY ALSO HAVE OTHER RIGHTS WHICH VARY FROM STATE TO STATE FOR THE NAME OF YOUR NEAREST AUTHORIZED NILES DEALER CONTACT NILES AUDIO CORPORATION P 0 BOX 160818 MIAMI FLORIDA 33116 0818 Please fill in your product information and retain for your records Model Serial No Purchase Date I WARRANTY REGISTRATION CARD Model Purchased Serial Number Date Purchased month day year Dealer Name
10. ITY POSITIVE GOES TO THE RED POST AND NEGATIVE TO THE BLACK POST IF YOU ARE UNSURE OF WIRE POLARITY SEE THE SECTION CHECKING PHASE ON SATELLITE LOUDSPEAKERS ON PAGE 17 2 Connect the other end of the loudspeaker wires to the home theater receiver amplifier and satellite loudspeakers in the same way 3 Turn on the home theater receiver and calibrate all loudspeakers in the system according to the receiver or surround processor manufacturer s instructions CALIBRATING THE SWA 500M After installing the amplifier and making all the connections set up the SWA 500M by performing the following steps Performing these steps will maximize the SWA 500M s performance see CONTROLS AND CONNECTORS page 7 for information on control operation 1 On the rear panel set the Master POWER switch to ON On the front panel set the POWER switch to ON Depending on your application set the rear mounted Auto POWER switch to ALWAYS ON or MUSIC VOLTAGE SENSE 2 Onthe front panel set the following controls and switches to their initial positions e HIGH PASS FREQUENCY control 120 Hz or value recommended by satellite loudspeaker manufacturer PHASE control 0 HIGH PASS FREQUENCY control 140 Hz or value recommended by satellite loudspeaker manufacturer e HIGH PASS ON OFF switch ON e LEVEL SETUP switch MUSIC e MUSIC LEVEL control 5 e MOVIE LEVEL control 5 NILES AUDIO CORPORATION 1 800 BUY HIFI C 15
11. L THAT IS ACTIVATED VIA A SWITCHED AC OUTLET ON THE RECEIVER SEE FIGURE 7 FOR CONNECTION DETAILS Auto POWER Switch Use the ALWAYS ON mode to leave the SWA 500M always on Use the MUSIC VOLTAGE SENSE mode to automatically power on the SWA 500M when an audio signal or trigger voltage is present When either signal is absent for 15 minutes the SWA 500M will enter the standby mode NOTE THE ALWAYS ON AND MUSIC VOLTAGE SENSE SETTINGS ARE ONLY ACTIVE AFTER MASTER POWER IS SET TO ON MOVIE MODE TRIGGER For external movie music mode triggering use a mini 3 5 mm plug to connect the IN jack to a movie trigger signal from a home theater surround processor or receiver The 3 to 30 Volts AC or DC signal will set the SWA 500M to movie mode while a 0 Volts AC or DC signal will keep it in the music mode Again tip is positive Use the OUT jack to pass the movie trigger signal to another SWA 500M amplifier NOTE IF THE SETUP SWITCH SEE FIGURE 6 ON PAGE 7 ON THE FRONT PANEL IS SET TO MUSIC A 3 TO 30 VOLTS AC OR DC TRIGGER SIGNAL WILL CHANGE OPERATION OVER TO THE MOVIE MODE IF THE SETUP SWITCH IS ALREADY SET TO MOVIE A TRIGGER SIGNAL HAS NO EFFECT SINCE THE MODE IS ALREADY SET TO MOVIE SPEAKER switch Use this switch to select the number of subwoofers 1 or 2 that are connected to the amplifier Be sure that it is set to the correct position before turning on the amplifier or damage to the amplifier may result If only one subw
12. also called line level These inputs accept audio signals from a receiver or surround sound processor For line level connections only use high quality RCA cables that feature low impedance double shielding and gold plated connectors This will help ensure the lowest possible noise and best overall performance See CONTROLS AND CONNECTORS on page 7 Your authorized Niles dealer can recommend good quality cable LOUDSPEAKER WIRE To connect the SWA 500M to your subwoofers s use an insulated 2 conductor loudspeaker wire see CONTROLS AND CONNECTORS on page 7 The SWA 500M gold plated 5 way binding posts will accept bare wire banana plugs and spade type plugs We recommend using a minimum of 16 gauge wire For wiring runs longer than 40 feet we recommend 14 gauge wire The SWA 500M s 5 way binding posts will accommodate up to 12 gauge wire directly Larger sizes can be accommodated via pin connectors To maximize performance consider purchasing special high quality speaker cables Consult your Niles dealer to find the right cables for your system Be sure to observe correct polarity when connecting your loudspeakers Positive goes to the RED post and negative goes to the BLACK post If the polarity of one connection is accidentally reversed your bass output will be very weak and imaging will sound smeared Figure 5 Connecting loudspeaker to SWA 500M RUNNING WIRES IN WALLS OR CEILINGS When running wire inside walls o
13. and Location ODr OMiss OMr OMrs DETACH HERE AND RETURN TO NILES AUDIO CORPORATION WARRANTY REGISTRATION DEPT P O BOX 160818 MIAMI FLORIDA 33116 0818 Name Address City Telephone Please take a moment to fill out our warranty registration card The information helps us to get to know you better and develop the products you want Age Musical tastes What magazines Do you O Under 25 Please check do you read O Own a House If yes O 25 34 all that apply 1 how many square feet O 35 44 O Alternative O 45 54 O lassical 2 O 55 amp over 2 corr try 3 O Town House Income O New Age Condominium Co op O Under 44 999 O Popular Who will install O Rent an Apartment O 45 000 59 999 O R amp B a pen O Rent a House ustom Installer O peas po x O Electrician Are you interested in O 99 999 150 000 O Friend receiving literature on O 150 000 99 999 How did you hear O Myself oer Niles ls O 99 999 200 000 about Niles Which factor s influenced ii O Over 200 000 Sec La ar e the purchase of your Niles there products Occupation O Direct Mail product Please check capabilities that you would 9 Arts Entertainment O Friend Family al that apply Nike to See intioduced O Business Owner O In Store Display O Interior Designer O Product Features O Finance Accounting O Magazine Ad O Quality Durabilit O
14. eaker level gold plated five way binding posts to connect loudspeaker level stereo audio signals to drive your front L R satellite loudspeakers These signals are routed through a fixed 100 Hz 6 dB per octave high pass filter and the response will be contoured accordingly NOTE THERE WILL ONLY BE A SIGNAL ON THESE CONNECTIONS IF THE LOUDSPEAKER IN BINDING POSTS ARE USED Subwoofer A and B Binding Posts Use these to connect one or two subwoofers Be sure that the Speaker Switch see 4 is set correctly before turning on the amplifier or damage could result Detachable IEC Power Cord If needed replace the fuse with same type as follows Main power switch APPLICATIONS The SWA 500M subwoofer amplifier is very flexible and can be configured for use in various applications with associated external audio components as shown in Figures 8 through 11 For other SWA 500M applications consult your local Niles dealer for help in configuring your home theater system SWA 500M IN A TYPICAL HOME THEATER INSTALLATION Set LOW PASS to closely Adjust PHASE to Set switch to ON and adjust FREQUENCY Position SET UP switch match HIGH PASS integrate subwoofer to match low frequency cutoff of your to the mode you wish to FREQUENCY control sound with system satellite loudspeakers adjust MUSIC OR MOVIE NOTE Control does not Alternate configuration and adjust level controls function when using LFE input Set switch to OFF to send ful
15. everse the connections on one Left or Right of the SWA 500M Loudspeaker OUT binding post pairs Hepeatthe listening test with the same volume control setting When the sound has richer bass is slightly louder the satellite loudspeakers are working together in phase NILES AUDIO CORPORATION 1 800 BUY HIFI P 17 TROUBLESHOOTING GUIDE If you experience a problem operating the SWA 500M consult this guide first most common problems relate to hook up or improper control settings Try to isolate the problem and check the control settings to determine the fault and make the necessary changes If the problem persists or you have additional questions contact your local Niles dealer or Niles Technical Support at 1 800 289 4434 305 238 4373 or techsupport nilesaudio com PROBLEM No sound Solutions Short circuit or loose wire at the speaker or amplifier terminals Check that the connections are secure and that there are no loose strands of wire crossing from the positive to the negative terminals at the back of the amplifier and or the speaker Short circuit or a break in the speaker wire Disconnect the speaker wire at both ends separate the 2 conductors at both ends and test with a meter for a short circuit If there is no short connect the two conductors at one end and test with a meter for continuity Speaker is not working Connect the speaker to a channel that plays another speaker Audio cable
16. ications Installing the right amplifier for your subwoofer s will give you that thunderous accurate bass that makes movies and music so enjoyable The SWA 500M uses the latest Class D technology Class D amplifiers are beautifully efficient so you ll get a lot more power with less current Less input current reduces power supply size and generates less waste heat This process allows Class D amps like the SWA 500M to produce more power than amps of larger size As you read this manual and become more familiar with the SWA 500M and Class D technology you ll understand why Niles products are unequaled Figure 1 Niles SWA 500M high power subwoofer amplifier NILES AUDIO CORPORATION 1 80 1 IMPORTANT SAFETY INSTRUCTIONS The lightning flash with arrowhead symbol 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 electric shock to persons AA CAUTION amp CAUTION TO REDUCE THE RISKOF ELECTRICAL SHOCK DO NOT REMOVE COVER NO USER SERVICEABLE The exclamation point within an equivalent triangle is intended to alert the user to the presence of important operating and maintenance servicing instructions in the literature accompanying the appliance PARTS INSIDE REFER SERVICING TO QUALIFIED SERVICE PERSONNEL WARNING To reduce the risk of fire or elect
17. l range per instructions audio to L R AUDIO OUT jacks NILES SWA500M r F P TV SAT Theater Receiver SWA 500M Back 1st Subwoofer 2nd Subwoofer Optional Figure 8 Line level connection NILES AUDIO CORPORATION 1 800 BUY HIFI ____ dT SWA 500M AND LINE LEVEL CONNECTION Set LOW PASS to closely Adjust PHASE to Set switch to ON and adjust FREQUENCY Position SET UP switch match HIGH PASS integrate subwoofer 10 match low frequency cutoff of your to the mode you wish to FREQUENCY control sound with system satellite loudspeakers adjust MUSIC OR MOVIE NOTE Control does not Alternate configuration and adjust level controls function when using LFE input Set switch to OFF to send full range per instructions audio to L R AUDIO OUT jacks NILES E oll a Optional Theater Receiver NILES Nies Audio Corporation SA SWA 500M Back 1st Subwoofer 2nd Subwoofer Optional Figure 9 Line level connection 12 SWA 500M AND LOUDSPEAKER LEVEL CONNECTION TO SATELLITE LOUDSPEAKERS Set LOW PASS to Adjust PHASE to Controls not used Position SET UP switch about 100Hz integrate subwoofer to the mode you wish t
18. o sound with system adjust MUSIC OR MOVIE and adjust level controls per instructions NILES Optional Home LIR fleta Right Theater loudspeaker Outputs Receiver LIR SWA 500M Back Left Loudspeaker Right Loudspeaker 1st Subwoofer 2nd Subwoofer Optional Figure 10 Connecting satellite loudspeakers NILES AUDIO CORPORATION 1 800 BUY HIFI 13 SWA 500M AND SATELLITE LOUDSPEAKER SYSTEM WITH EXTERNAL POWER AND MODE TRIGGERS fr F UON UNUS UO UN UNO UU Optional nar ra a ooo TV SAT Home Trigger Output i Theater Receiver SWA 500M Back Second SWA 500M 0ptional Figure 11 Trigger connection 14 CONNECTING THE SWA 500M Connect the SWA 500M according to your application see APPLICATIONS on page 11 Use high quality RCA cables for all line level connections see CONTROLS AND CONNECTORS on page 7 For applications with loudspeaker level connections perform the following steps 1 Ateach SWA 500M loudspeaker level connection separate the loudspeaker wire so that at least 2 of each conductor are free Strip away 1 4 inch of insulation from each loudspeaker wire Using correct polarity connect the appropriate conductor to each five way binding post NOTE OBSERVE CORRECT POLAR
19. on devices controls and accessories NILES AUDIO CORPORATION 1 800 BUY HIFI gt 3 Do not use cleaning liquids or chemicals on this product Use a dry soft cloth or paper towel to clean Do not expose this equipment to dripping or splashing and ensure that no objects filled with liquid such as vases or drinks are placed on the equipment SWA 500M PLACEMENT The SWA 500M Subwoofer amplifier is designed for home theater and home audio bass reinforcement Place the SWA 500M on a sturdy shelf or mount the SWA 500M in a rack using the included rack ears Make sure that the location you choose can support the weight of the amp Like all hi fi components the SWA 500M should have proper ventilation and the ventilation slots in the amp s cover should not be obstructed When rack mounting the amplifier ensure good airflow and adequate ventilation 3 5 minimum open space around the unit If you are placing the SWA 500M inside a cabinet be sure that the rear of the cabinet is open to fresh air for proper cooling If you are not rack mounting this amplifier make sure that it is placed on a flat level surface Never block the amplifier s ventilation slots or expose the amplifier to moisture or heat sources Figure 2 Cabinet installation Figure 3 Enclosed cabinet installation Z Make sure that there is a minimum 0 3 1 2 of free air space above the amplifier for proper ventilation
20. oofer is connected and the switch is set to the Two sub position then no sound will be output from the amp BASS BOOST selector Use this rotary switch during setup to select a frequency to enhance the sound of the subwoofer s connected It should be set to the 3dB down frequency of the subwoofer AUDIO IN jacks Use these gold plated line level RCA input jacks to connect line level stereo or LFE audio signals from a home theater receiver or processor The LFE Low Frequency Effects input is unfiltered by the SWA 500M AUDIO OUT jacks Use these gold plated line level RCA output jacks to connect line level stereo and LFE audio signals to drive another SWA 500M amplifier The LFE output is unfiltered but the L R output signals are routed through the variable 60 to 160 Hz HIGH PASS filter and the response will be contoured according to filter settings NILES AUDIO CORPORATION 1 800 BUY HIFI 9 10 10 11 12 Loudspeaker IN Binding Posts As an alternative to the AUDIO IN jacks use the loudspeaker level gold plated five way binding posts to connect loudspeaker level stereo audio signals from a home theater receiver or whole home audio system Use this connection only if your home theater receiver does not have a subwoofer LFE or pre amp output NOTE DO NOT USE THESE CONNECTIONS WHEN USING THE LINE LEVEL INPUTS Loudspeaker OUT Binding Posts As an alternative to the AUDIO OUT jacks use the loudsp
21. r ceilings use special jacketed cable CL 2 or CL 3 to protect the wire and to meet local electrical and fire codes In some areas conduit is also required For a trouble free installation low voltage wire such as loudspeaker wire must be run in accordance with the National Electrical Code and any applicable provisions of the local building code If you are unsure of the correct installation techniques wire jacket or type of conduit to use consult a professional audio video installer building contractor or the local building and inspection department CONTROLS AND CONNECTORS The SWA 500M s easy operation controls are located on the unit s front panel as shown in Figure 6 The controls function as follows 6 3 4 5 7 8 2 A NILES 7 p DLO DN eo Me TM SWASOOM 1 Figure 6 Front Panel control on the SWA 500M 1 Master POWER Switch Use this control to power the SWA 500M On or Off MUSIC MOVIE LEVEL and SETUP Controls Because bass levels will differ depending on whether you are watching a movie or listening to music the SWA 500M includes MUSIC MOVIE LEVEL and SETUP Controls While listening to music push the SETUP switch to MUSIC and adjust the MUSIC LEVEL control to set your desired bass level Similarly while listening to a movie push the SETUP switch to MOVIE and adjust the MOVIE LEVEL control to set the desired bass level Each level control includes an LED indicator to identify
22. rical shock do not expose this equipment to rain or moisture 2 1 Read these instructions 2 Keep these instructions 3 Heed all warnings 4 Follow all instructions 5 Do not use this apparatus near water 6 Clean only with a dry cloth 7 Do not block any ventilation openings Install in according with the manufacturer s instructions 8 Do not install near any heat sources such as radiators heat registers stoves or other apparatus including amplifiers that produce heat 9 Do not defeat the safety purpose of the polarized or grounding type plug A polarized plug has two blades with one wider than the other A grounding type plug has two blades and a third grounding prong The wide blade or the third prong are provided for your safety If the provided plug does not fit into your outlet consult an electrician for replacement of the obsolete outlet 10 Protect the power cord from being walked on or pinched particularly at plug convenience receptacles and the point where they exit from the apparatus 11 Unplug this apparatus during lightening storms or when unused for long periods of time 12 Only use attachments and accessories specified by the manufacturer 13 Use only with a cart stand rack bracket or table specified by the manufacturer ALL or sold with the apparatus When a cart is used use caution when moving the cart apparatus combination to avoid injury from tip over 14 Refer all servicing to
23. tch the highest setting first 50Hz and adjust the levels for Music and Movie modes If further adjustment is needed select the next lowest frequency for BASS B00ST and repeat adjustments until satisfied 16 CHECKING PHASE ON THE SATELLITE LOUDSPEAKERS Loudspeaker wire has two conductors On applications with satellite loudspeakers one conductor is attached to a component s negative terminal while the other is attached to a component s positive terminal Usually the wire is marked for your convenience but the marking can be done in the following different ways Stripe on one wire Ribbed area you can feel on one conductor Different colors of metal wire on each conductor Fabric strand or string wound into one of the conductors Of course there are some wires that appear completely identical So be careful or you might make a connection mistake If you do one satellite loudspeaker will be playing out of phase with the other loudspeaker A pair of out of phase loudspeakers works against each other and the sound of the two playing together will be lacking in bass and sound phasey If you suspect the sound is not right and you cannot see any markings on the wire try this simple test 1 2 3 4 Qn Stand halfway between the satellite loudspeakers Play some music with the amplifier or receiver set to Mono Listen to the richness of the bass and the loudness of the sound Turn off the amplifier and r
24. uency sound effects EFFICIENT AMPLIFICATION TECHNOLOGY The SWA 500M s digital amplifier circuitry and quality components ensure superior sound quality This high power stand alone subwoofer amplifier will deliver more power with reduced current demands than conventional amplifiers PERSONAL BASS CONTROL The SWA 500M s controls are located in the front and enable you to set the desired bass level according to your personal taste for music and movies A bass boost selector located on the back enables you to select a frequency to enhance the sound of the connected subwoofer s FLEXIBLE INSTALLATION amp MULTIPLE BASS CAPABILITY Whether you have a large dedicated home theater sophisticated listening room or a simple audio video system the SWA 500M can be configured for use with various audio components like preamp processors and receivers In addition the SWA 500M s internal circuitry and sub switch feature allow you to connect up to two passive subwoofers the recommended number by home theater professionals and enjoy rich bass with superior sonic quality QUALITY YOU CAN COUNT ON Since 1978 Niles Audio has been a leading manufacturer of custom installed home entertainment products Recognized around the world for designing and manufacturing reliable durable solution based products Niles offers more than 500 products for whole house distribution and integration of audio video systems loudspeakers receivers amplifiers automati
25. which one is currently active as triggered by your home theater sound processor or receiver Also see CALIBRATING THE SWA 500M on page 15 N 3 LOW PASS Frequency Control Use this control to set the subwoofer s low pass crossover frequency from 40 to 120 Hz For more details see CALIBRATING THE SWA 500M on page 15 4 PHASE Control Use this control to set the subwoofer s phase response from 0 to 180 See CALIBRATING THE SWA 500M on page 15 CONTINUED ON NEXT PAGE NILES AUDIO CORPORATION 1 800 BUY HIFI CF 5 HIGH PASS Frequency adjustment with 0N 0FF switch This feature allows you to run R L loudspeaker wires RCA line level wires from an amp receiver processor into the SWA 500M and then back to the main audio amplifier to the R L loudspeakers When the HIGH PASS Frequency switch is engaged you can then control the frequencies to those R L speakers via the front control knob Use the HIGH PASS control to set the high pass crossover frequency from 60 to 160 Hz according to your loudspeaker manufacturer s recommendation to drive a satellite loudspeaker system amplifier from the line level AUDIO OUT jacks To activate the filtered signals set the ON OFF switch to ON 6 The MODE indicator on the far left shows which power mode is active as set by the Auto POWER switch Green is ON Red is STANDBY 7 High Pass Frequency Adjustment On Off Switch 8 Music Movie Mode Setup Mode SIGNAL CONNECTORS AND POWER CONTROLS
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