Niles OS-20 In/Outdoor Loudspeaker
Contents
1. 3 If you have any connectors gold pins or bananas which you prefer to use affix them to the stripped wire ends now Only gold plated connectors should be used outside as they will not tamish or corrode 4 Use the bracket knobs to attach the speaker to the bracket Do not tight en the knobs completely Angle the speaker so that the rear terminals are accessible 5 Connect one stripped wire end or connector to the black and one to the red terminal Pay attention to the markings on the wire Each speaker must be connected to the amplifier in the same way Speaker Phase Speaker wire has two conductors One conductor is attached to the negative terminals and one conductor is attached to the positive terminals of both your speaker and your amplifier Usually the wire is marked for your conve nience There are different ways to mark the wire a stripe on one wire a ribbed area of one conductor you can only feel different colors of metal wire on each conductor or there might be a fabric strand or string wound into one of the conductors Of course there are some wires which appear completely identical Be careful to avoid mistakes If you do one speaker will be playing out of phase with the other speaker An out of phase pair of speakers work against each other and the sound of the two speakers playing together will be lacking in bass and phasey sounding If you suspect the sound is not right and you cannot see any markings o2. life of the speaker by placing the speaker so that it receives less exposure to the elements Look for the best overall compromise between sound quality convenience and exposure Do not compromise safety PAINTING THE OS 20 The enclosure the brackets and the grills of the OS 20 can all be painted to match the surroundings Because we want you to preserve the acoustic quali ties of the grill please paint the grill according to the grill painting instructions Make sure you pick a paint that is appropriate for the mounting location There are interior and exterior varieties and even paint for marine uses If you are not sure what paint to use consult a paint store professional or a painter Tools Required A spray can of primer paint Krylon Sandable Spray Primer 1318 e The correct paint for the surroundings oil or water based paint is fine e A paint brush or applicator if the paint is not in a spray can e A paper clip or a corkscrew for removing the grill e Masking tape e 2 paint masks Supplied e A damp cloth and a dry cloth Preparing to Paint 1 Separate the parts of the speaker You should remove the brackets and the bracket knobs Remove the grill by hooking it with a bent paper clip or the tip of a corkscrew and pulling it away from the cabinet See Figure 8 Figure 8 Removing the grill using a paper clip 9 P zi P ie E T m O P N e 5 P zi P ie E T m O 2 NJ e 2 Wipe
3. off the other sides of the cabinet the bracket bracket knobs and grill with a damp cloth Do not touch or rub the speakers on the front baffle Make sure everything is dry before masking 3 Mask off the binding posts and the brass threaded inserts on the back panel with masking tape 4 Mask off the threaded inserts on the top and bottom with masking tape 5 Protect the front of the speakers by inserting the supplied paint masks in place of the grills Painting the Cabinet Bracket Knobs and Bracket 1 Apply two thin coats of a primer to the cabinet and knobs We recommend Krylon Sandable Spray Primer 1318 The bracket doesn t require a coat of primer 2 Allow the primer to completely dry 3 Apply the finish color 4 Allow the paint to completely dry 5 Carefully remove the masking material 6 Do not reattach the speaker to the bracket until the bracket is mounted Try to keep all handling of the freshly painted parts to a minimum Painting the Grill The grill is important to the sound of the OS 20 Do not fill the holes of the grill with paint The grill is constructed of aluminum with a perfectly even powder coat overall This powder coat is an ideal primer If you are using a spray paint use two thin coats without any primer If you are using a compressor and a spray gun use the finest most diffuse setting Practice on paper if you are not experienced in painting with spray paint If you are using an applicator
4. or brush and a can of paint thin the paint first Thick paint will tend to clog the grill holes Replacing the Grill Carefully fit the grill into its recess so that it is barely in place Starting with one comer go around the speaker pushing the grill in a lite bit each time You should be gentle the aluminum grill can be easily bent out of shape You will feel a positive snap when it is fully in place 9 P P c E T m O P N e Mounting the Bracket 1 Remove the bracket knobs and the bracket from the speaker 2 Hold the bracket up to the mounting surface The speaker can be mounted either horizontally or vertically Hold the bracket so that the speaker wire fits through the large circular wire hole in the bracket Align the bracket to be square with the surroundings use a level for accuracy 3 Mark the locations of the three oval shaped screw holes See Figure 9 Be sure to use all of the holes 4 Drill pilot holes into the mounting surface Figure 9 Mounting the OS 20 5 Pull the speaker wire through the wire hole in the center of the mounting bracket Align the bracket so that the holes all line up 6 Use your hardware to attach the bracket to the mounting surface Connecting the Speaker 1 Separate the two conductors of the speaker wire so that at least two inches of each conductor are free 2 Strip one half inch of insulation from the end of each conductor of the speaker wire
5. A NILES Niles Audio Corporation 12331 SW 130 Street Miami Horida 33186 Tel 305 238 4373 Fac 305 238 0185 1999 Niles Audio Corporation D800199A Printed in Taiwan INSTALLATION amp OPERATION GUIDE Indoor O utdoo r Loudspeaker f IN LES B LCENDIN GOHO Hie DRE TTD Y AND ARCHITECTURE CONGRATULATIONS Thank you for choosing the OS 20 Indoor O utdoor Loudspeaker from Niles With proper installation and operation you ll enjoy years of trouble free use Niles manufactures the industry s most complete line of custom installation components and accessories for audio video systems For a free full line catalog write Niles Catalog Request PO Box 160818 Miami Horida 33116 0818 TABLE OF CONTENTS INTRODUCTION 2 FEATURES amp BENEFITS 9 PARTS GUIDE 6 INSTALLATION CONSIDERATIONS 7 PAINTING THEOS 1O 12 INSTALLATION 15 OPERATION 18 SPECIFICATIONS 19 WARRANTY REGISTRATION CARD 21 LIMITED WARRANTY 22 01999 Niles Audio Corporation All rights reserved Niles reserves the right to change product specifications without notice Niles the Niles logo and Blending High Fidelity and Architecture are registered trademarks of Niles Audio Corporation OmniMount is a registered trademark of OmniMount Systems INTRODUCTION The OS 20 manies unparalleled listening satisfaction with the freedom to listen to music anywhere You can use them indoors and outdoors even on a boat The extraordinary sonic pe
6. ATION CARD Model Purchased Serial Number Date Purchased month day year Dealer Name and Location 9 Dr Miss Name Address City Telephone Mr Mrs Ms State Zip 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 L1 Under 25 L1 25 34 L1 35 44 L1 45 54 L1 55 amp over Income L1 Under 24 999 L1 25 000 34 999 L1 35 000 44 999 L1 45 000 59 999 L1 60 000 74 999 1 75 000 99 999 L1 Over 99 999 Occupation 4 Arts Entertainment _J Business Owner L Engineer _J Finance Accounting _I General Office Management _I Professional _I Sales Marketing _I Student _I Tradesperson Musical tastes Please check all that apply L Alternative L Classical L Country LJ Jazz _I New Age 4 Popular R amp B L1 Rock L1 Other How did you hear about Niles 4 Architect Developer 1 Custom Installer 1 Direct Mail 4 Friend Family 1 In Store Display 1 Interior Designer _I Magazine Ad _I Mail Order Catalog _I Newspaper Ad _J Product Brochure _J Product Review _I Retail Salesperson What magazines do you read 1 Who will install the product L1 Custom Installer L1 Electrician L1 Friend 1 Myself Which factor s influ enced the purchase of your Niles product Please check all that apply LJ Ease of Use LJ Price Valu
7. E 5 10 Speaker N Placement a Figure 4 Zone Illustration depicts the optimum placement zone for a listening distance of ten feet Make sure you are not blocking or reflecting the sound off of fumiture or other objects You should have a direct line of sight with the front of the speaker To determine the best position measure the distance between the ideal listening position and the wall you plan to mount the speakers on Try to place the speak ers so that they are at least one half the listening distance apart this maintains a large pleasant stereo image and less than the entire listening distance this avoids a hole in the middle effect For example if you are ten feet back from the wall the speakers should be between five and ten feet apart See Figure 4 You can control the speakers bass output by placement This is called the boundary effect You will get more bass response by mounting the OS 20 directly to a wall or other flat surface any boundary close to the speaker will reinforce the bass frequencies You can increase the bass output even more by mounting the OS 20 in a corner or under an eave See Figure 5 This type of placement gives the speaker two boundaries both reinforcing the bass sounds Of course if you wish to hear less bass try moving the speaker away from the boundary See Figure 6 Figure 5 Figure 6 Placement for less bass output Placement for more bass output Mounting
8. Methods The OS 20 can be mounted either horizontally or vertically The bracket knobs will keep the speaker angled correctly in any position once they are tightened You can choose from three mounting methods to attach the OS 20 to the wall ceiling or other mounting surface Z P 4 O zZ O ie zZ N iz s O z un Z rm O zZ O O z un iz m 5 a O z Un l If the speaker is never going to be exposed to sudden accidental impacts wind waves or earthquakes you can simply hang it on a nail using the nail hole s of the bracket See Figure 7 Nail Mounting Screw Mounting OmniMount or Custom Bracket Mounting Figure 7 The OS 20 can be mounted three ways 2 The safest and most secure way to mount the speaker is by screwing it to the mounting surface using your own hardware suitable for the surface you are mounting to and the bracket supplied with the speaker See Figure 7 3 There are threaded brass inserts on the back of the OS 20 for attaching an OmniMount or a custom bracket See Figure 7 This allows you to position the speaker at unusual angles or distances from the mounting surface Safety First Be careful to use hardware that is designed for the surface you are mounting to The OS20 with the bracket weighs 8 1 2 pounds If you are not sure of a safe way to mount the speakers consult a professional installer or a building contractor You will maximize the useful
9. P O BOX 160818 Miami Florida 33116 0818 Please fill in your product information and retain for your records Model Serial No Purchase Date 2 e zl zh q 5 gt
10. ate rust proof construction The enclo sure itself is shatterproof The OS 20 s components are weather resistant UV resistant salt water corrosion resistant and immune to damage from tempera ture extremes 50 to over 200 degrees Fahrenheit The connectors five way design allows you to use any of the most popular wire The binding posts are mounted upside down in a molded recess on the back of terminating methods Gold plating gives you a corrosion free high quality speaker wire connection 3 z E FEATU RES amp BENEFITS Easy Finger Sized Access Weather Resistant C connections Z um O zZ O O z un iz m 5 O z un INSTALLATION CONSIDERATIONS Tools and Materials Required A wire stripper e A pencil A level optional e Three screws or bolts suitable for the mounting surface e The proper screwdriver for your mounting hardware e A drill bit of the right size and type e An electric drill Wiring The OS 20 connects to your receiver or amplifier using 2 conductor speaker wire See Figure 2 For most applications we recommend using 16 or 18 gauge wire For wiring runs longer than 80 feet we recommend 14 gauge wire The binding posts of the OS 20 will accommodate up to 12 gauge wire direct ly Larger sizes can be accommodated using spade banana or pin connectors TECH TIP Wire size is expressed by its AWG American Wire Gauge number The lower the number the
11. e LJ Product Features 4 Quality Durability 4 Reputation _I Style Appearance Warranty Do you L Own a House If yes how many square feet L1 Own a Town House Condominium Co op 4 Rent an Apartment _I Rent a House Are you interested in receiving literature on other Niles products Ld Yes LI No Are there products capabilities that you would like to see introduced DETACH HERE AND RETURN TO Niles Audio Corporation Warranty Registration Dept P O Box 160818 Miami Florida 33116 0818 LIMITED WARRANTY Niles Audio Corporation NILES warrants its outdoor 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 m
12. f and light polypropylene cone the butyl rubber surround the substantial magnet and the rigid steel basket are all optimized for large excur sions of the woofer In this way the five and a quarter inch cone can create the same deep bass output of a much larger speaker moving small distances in and out The end result is rich satisfying bass from a compact weather resistant loudspeaker Eight Ohm Impedance The OS 20 s are designed to be part of a multi room audio system The OS 20 s eight ohm impedance makes them compatible with virtually any amplifier In addition this permits multiple pairs of OS 20 sto be wired to a single ampli fier with a Niles speaker selector Rigd Acoustically Inert Enclosure The cabinet of the OS 20 is composed of mineral filled polypropylene This material is extremely non resonant All you hear is the music Low Diffraction Grill and Front Baffle The grill of the OS 20 has hundreds of precisely sized perforations creating an acoustically transparent grill The front baffle is gently curved in a radius opti mized for the best sound Sound waves emanating from the woofer and the tweeter are not reflected by the surrounding parts of the speaker Tapering Shape The cabinet of the OS 20 is shaped so that the speaker will tuck discretely away into comers or under eaves Swiveling Bracket The U shaped bracket and bracket knobs allow the OS 20 to be pointed at the optimum listening position and locked
13. into place quickly and easily Easy Three Way Mounting System 1 The OS 20 can be hung from a nail using the nail hole on the bracket 2 The bracket can be screwed into the mounting surface using your hardware 3 The OS 20 is equipped with 1 4 20 threaded inserts for OmniMount or custom brackets Stable Shelf Placement The rubber inserts on the bracket knobs serve as one of the speaker s feet when the OS 20 is placed directly on a shelf or desktop without the bracket In addi tion two feet are molded into the base of the cabinet to give added stability i r c JJ m un f C ITI Pa ITI un PARTS GUIDE 65 c b Fo N O a 8 O Y o 5 BOs o e S255 8 Oa CE MSE eaaoonur io E X m E c oO C c 5 o a o D ji o g 2 oc SG 259lI xITtTz Q T oa 2 2 2 o Sweet os 5S mzzo0t B IL d 9O o o o 0 000 S o PARTS GUIDE Q fis emm on large enough to fit your fingers so you can easily loosen or tighten the speaker iting with aluminum and it is powder coated powder coating gives absolutely the OS 20 This prevents water from pooling at the connection The recess is The hardware is made of stainless steel or brass and the binding posts are plat ed with gold The bracket and grill are made of aluminum oxidation is self lim even coverage everywhere for the ultim
14. larger the wire i e twelve AWG is physically larger than fourteen AWG When you run wire inside walls outdoors or in marine installations special jacketing or conduit is required for a trouble free installation and conformation to the local and national building codes If you are not sure of the correct wire jacket or type of conduit to use consult a professional audio video installer building contractor or the local building and inspection department TUNER 949 CJ TUNER 949 15 ul lu 15 ul lu OMIM OOOO Oceans Figure 2 Figure 3 Wiring directly from a receiver or Incorporating a volume control amplifier Incorporating a Volume Control It s possible to control the volume of the sound at the speaker location Plan to wire the system so that each pair of speakers has its own volume control Niles makes a wide range of indoor and outdoor volume controls Consult your local Niles dealer for more information Volume controls are connected in line with the speaker so you must connect the wire from the amplifier to the volume con trol and then from the volume control to the speaker See Figure 3 Recommended Amplifier Power We recommend an amplifier with a power rating of five to one hundred watts per channel for optimum performance Ironically most speakers are not dam aged by large amplifiers but by small amplifiers If you are playing at high vol ure a small amplifier will run out of power very quickly Whe
15. n an amplifier runs out of power it creates damaging clipping distortion A large amplifier will play at the same volume without distorting See the section O peration for more information about clipping distortion Z 4 O zZ O o zZ un iz s O z un Z 4 O zZ O O z un iz m 5 O z un Placing the OS 20 for the Best Sound Quality The OS 205 s dispersion pattern is very broad The speaker is very sensitive and will handle a lot of amplifier power This allows good sound quality over an extremely large listening area However if a single pair is positioned to provide coverage of a very large room or patio you will have hot spots of loud sound when you are near the speakers The best way to avoid hot spots for a large Space is to use several pairs A good rule of thumb is a pair of speakers for every 200 to 400 square feet of listening area Your local Niles dealer is a good source for advice on speaker placement for your particular installation When using more than one pair it is usually best to alternate a left channel and then a right channel so that you never have a left next to a left The position of the speakers and the surroundings around them play a very important role in how a stereo image is created You should experiment to find the very best position for your speakers Here are some guidelines to make the process quick and easy Speaker N Placement QI Zone
16. n the wire try this simple test 1 Point the speakers at each other rather than at you 2 Play some music with the amplifier or radio set to Mono Z z z O zZ 3 Stand so you are the same distance from each speaker and listen to the rich ness of the bass and the loudness of the sound 4 Tum off the amplifier and reverse the connections on one speaker only 5 Repeat the listening test with the same setting of the volume control When the sound has a richer bass and is slightly louder the speakers are working together or in phase Final Adjustments 1 After checking that the speaker is in phase and works correctly angle the speaker for the best sound 2 Tighten the bracket knobs using only your hands Use of any power tools may over ti ghten the knob and strip the threads of the insert 3 Check that the entire installation is safe and secure OPERATION Listening at Higher Volumes Outdoors there are no walls to reflect and contain the sound It requires more power to achieve a reasonable volume of sound outside than it does when you are indoors You also frequently find yourself very far from the speaker It is possible to tum the volume so high that the amplifier runs out of power This creates clipping distortion Clipping distortion makes treble sound very harsh and unmusical When you hear harsh sounding treble from any good speaker indoors or outdoors tum the volume down immediately Those har
17. rformance of the OS 20 was achieved by harmoniz ing unique and proprietary technology with the most advanced manufacturing methods and materials available The OS 20 is a two way speaker in an acoustic suspension enclosure The cab inet is shaped to fit neatly into corners or eaves It is supplied with a swiveling mounting bracket for easy installation anywhere In addition our engineers constructed the OS 20 s to withstand the stresses and strains of the world out side For the first time serious listeners can enjoy a concert on the green in their own back yard z mr a O J c O o P c AJ m un e UJ ITI P ITI un FEATURES amp BENEATS Precision Crossover An electronic dividing network inside the cabinet precisely distributes the music to the woofer and the tweeter The two way design of the OS 20 s crossover provides excellent stereo imaging and low distortion ElastoDynamic Hybrid Dome Tweeter In the past every weather resistant speaker has disappointed listeners with a fatiguing and harsh treble sound caused by tweeter ringing In the course of developing our weather resistant tweeter we determined that tweeter ringing can be damped out by a microscopically thin elastomeric coating on a natural fiber dome substrate The result is a transparently clear sweet natural sounding tweeter which still maintains extended frequency response Long Throw Polypropylene Woofer The unusually stif
18. sh sounds are masking some much more powerful ultra high frequency sound spikes which will quickly damage any fine loudspeaker Cleaning You can clean the OS 20 s with a dampened soft cloth or paper towel If the speaker is mounted high up on a wall or ceiling use a broom to gently brush it off Hosing off the speaker is not recommended as the tweeter is a precise mechanism which might be damaged by a high pressure stream of water E Ww n m e zl gt gt le T SPECIHCATIONS Recommended Amplifier Power Five to one hundred watts per channel Nominal Impedance 8 Ohms Frequency Response 68 Hz to 21kHz plus or minus 3 dB on axis Sensitivity 9 decibels for 2 83 volts of Pink Noise measured at 1 meter on axis Wiring Requirements Sixteen to eighteen gauge 2 conductor unshielded or shielded wire for runs up to eighty feet Fourteen gauge 2 conductor unshielded or shielded wire for runs up to two hundred feet Temperature Extremes 50 to 200 Fahrenheit Dimensions Speaker without U Bracket 9 7 8 Wide x 13 High x 7 1 4 Deep Dimensions Speaker with U Bracket 9 7 8 Wide x 13 High x 9 Deep Weight Speaker and Bracket 8 1 2 Ibs ERE II I Ol I Fl PLEASE FILL OUT THE WARRANTY REGISTRATION CARD ON THE REVERSE SIDE DETACH AND MAIL TO Niles Audio Corporation Warranty Registration Dept PO Box 160818 Miami Horida 33116 0818 NILES WARRANTY REGISTR
19. ust write to NILES and include your name model and serial num ber of your unit along with a brief description of the problem A factory Retum Authorization Number will be sent to you DO NOT RETURN ANY UNIT WITHOUT FIRST RECEIVING WRITTEN AUTHORIZATION AND SHIPPING INSTRUCTIONS FROM NILES If the above conditions are met the purchaser s sole remedy shall be to retum 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 retum 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 FIT NESS 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 so 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 INC
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