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INSTALLATION & OPERATION GUIDE
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Congratulations! Thank you for choosing a Niles loudspeaker. With proper installation and operation, you'll enjoy years of trouble-free use. The PSW8 wall mount subwoofer is uniquely designed to provide unobtrusive low fre- quency augmentation. The selectable high and low-pass filters make it suitable for use with a wide variety of satellite speakers. Niles manufactures the industry's most complete line of custom installation components and accessories for audio/video systems. For a free full li
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Features and Benefits Inverted Dust Cap Features and Benefits The inverted dust cap feature of the PSW8 actually reinforces the cone to further Injection Molded TCC increase the stiffness-to-mass ratio and (Talc, Carbon and Ceramic) reduce distortion. In a subwoofer applica- Woofer with Butyl Rubber tion, this dust cap inversion offers the addi- Surround and Vented Pole Piece tional benefit of reducing the “oil can” effect The Niles PSW8 Subwoofer employs a that can cause traditional woofers t
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Features and Benefits High Power Handling Output terminals are also provided to utilize the switchable low-pass filter and provide for The PSW8 employs an exceptionally heavy- convenient wiring to the satellite speakers. All duty magnet/voice-coil/spider assembly that terminals are Niles patented non-strip design, is capable of handling high power ampli- which greatly simplifies installation. fiers (up to 150 watts). Easy Retrofit Installation in your Infinite Baffle Design Existing Home The PSW
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How Many Subwoofers? Single Stereo Subwoofer How Many Subwoofers? One PSW8 can produce the bass sound from both the left and the right channels For most applications a single PSW8’s is because of its unique dual voice coil appropriate. However, in large rooms, high design. One voice coil powers the left chan- performance listening rooms or in home nel and the other powers the right channel. theaters, an array of two or more PSW8s A stereo crossover divides the signal and fil- will deliver astoun
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LEFT IN RIGHT IN LEFT IN RIGHT IN Connections Dual Subwoofer Systems Connections A four conductor wire (Left+, Left-, Right+ and Right-) 16 gauge or larger is run from Single Stereo Subwoofer the amplifier location to the local volume control. (See Figure 5). A four conductor wire (Left+, Left-, Right+ and Right-) 16 gauge or larger is run from the amplifier location to the local volume Amplifier control. (See Figure 4). Amplifier Left Right Left Right Wire to Corresponding Output PSW-800 PASS
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R E E E E K K K K O R R R R O O O O S A A A A U U U U N R K R R R R T T T T E N O F F F F S N N N N S O I I I I N Connections D C K E K E N R O S O A U D C R R T E K O F R O N S A U I N Now, the volume control will raise and range (or with an external electronic lower the volume for the subwoofers and crossover) by a separate amplifier channel. the left and right speakers simultaneously. Connections are straight-forward; two Additionally, the crossovers are now con- conductor wires connect each
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Impedance clear indication and your amplifier or Impedance receiver has two sets of speaker terminals (typically labeled “A” and “B”) your ampli- fier may be capable of driving a four ohm With One or Two Subwoofers load. Perform the following test to be sure: When one or two PSW8 subwoofers are connected to the satellite speakers, the Parallel/Serial Speaker Connection Test overall system impedance to the amplifier 1. Hook up one pair of speakers to the “A” lowers. speaker terminals of your am
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Impedance Using Speaker Selectors With Using Impedance Magnifying Standard Volume Controls Volume Controls In multi-room systems with standard vol- The simplest way to increase the imped- ume controls any Niles speaker selector ance of a satellite/subwoofer system is to will maintain a four ohm load if you leave install a Niles VCS-2D-IM or VCS-2S-IM one set of room outputs unused for every impedance magnifying volume control speaker system with an impedance of less instead of a standard volume
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Treatment & Placement Enclosure Lining Treatment & Placement Purchase some subwoofer damping materi- al from a car stereo store (there are various ™ Typically, sheetrock encloses the sub- brands available, e.g. Dynamat ). Apply woofer in most installations. Sheetrock has the damping material to the back of the a fairly loud resonant “twang” compared wall behind the PSW8 and to the to the rigid non-resonant enclosures of sheetrock surrounding the wall beside the most floor standing subwoofers. No
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Installation Fundamentals If construction forces a side by side run for Installation Fundamentals more than ten feet, install metal conduit or shielded speaker wire. Low-voltage wires Introduction such as doorbells, intercoms, telephone, security, or television cannot cause interfer- If you have doubts about whether you are ence or hum on your speaker wires, so you capable of installing an in-wall speaker, can safely run all of them at the same time, consult a Niles dealer or professional throug
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Installation Fundamentals A good technique is to snap a chalk line is the skeleton; two-by-four wood or metal across the face of the studs or against the “studs” running vertically from the floor to bottom of the ceiling joists. Then work the ceiling in walls and two-by-six or larger backward so that you can always see the “joists” running horizontally in the ceilings holes you have already drilled. Paying care- and floors. In between the studs and the ful attention to this will save you a lot o
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Installation Fundamentals cover plate and switch or receptacle, and shining a penlight into the wall. If you have access to an attic or basement space you can quickly see which part of the wall space the wire is free of obstructions (See Figure 12). When you don’t have access above or below the wall, try to estimate the existing wire Speaker Volume and pipe locations from the Location Control Location positions of electrical outlets and plumbed fixtures on both sides of the wall. Take a look at
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Installation Fundamentals Figure 13 plenum rated wire (check your local building codes, some municipalities require conduit). In traditional wood stud/drywall construc- tion you can cut the hole for the speaker and utilize the large hole to auger holes across, up or down the wall for as far as your drill bit will take you. If you have matching paint and take reasonable care in patching you can cut a hatch in the dry- wall at each stud, run your wire, and patch and touch-up the wall (See Figure 1
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Installation in New Construction To install the bracket, first attach the ™ Installation in New QuickSnap new construction wings to the bracket by snapping them into the sides of Construction the bracket. The wings can be shortened by breaking them along the scored lines if their Stage One: Before Drywall is Hung length will interfere with a corner or eaves. Insulating the Wall Cavity. The wings and brackets have centering lines to simplify the placement of the speaker. If feasible, fill the wal
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Installation In Existing Construction Figure 16 Installation of Brackets, Frames and Grilles in Existing Walls IMPORTANT: Before you cut into any wall, review the sections on running wire and speaker placement. 1. Drill a 1/8” pilot hole just barely through the wallboard or dry wall (1/2” to 5/8” deep in most homes) about an inch below the center of your proposed speak- in a complete circle. If it turns freely, er location (an inch to the side if you are repeat the procedure from a hole about
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Final Installation In New Or Existing Construction the drywall section can be replaced clean- Installation of the ly if there is an unseen obstruction behind the wall. BE VERY CAREFUL NOT TO Speaker and Grille SAW THROUGH EXISTING WIRES, PIPES, OR STRUCTURE. IF YOU FEEL ANY in New or Existing EXTRA RESISTANCE AS YOU ARE CUT- TING, STOP. Construction 4. If you are cutting into lath and plaster walls, use masking tape to outline your Installing a Niles MS-1 MicroSensor™ penciled marks, drill the
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Final Installation In New Or Existing Construction Installing the Speaker 5. Place the speaker baffle in If the grille is already the frame by installing the installed, remove it by legs in the corresponding using a bent paper clip or holes in the frame and the tip of a corkscrew and tilting the speaker forward pulling it away from the until the snaps engage frame (See Figure 18). (See Figure 21). Figure 18 1. Separate the speaker wire so that at least two inches of each conductor are free. 2. O
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Final Installation In New Or Existing Construction 1. Stand half way between the two speakers. 2. Play some music with the amplifier or radio set to Mono. 3. Listen to the richness of the bass and the loudness of the sound. 4. Turn off the amplifier and reverse the connections on one amplifier channel 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”. Setting the
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Final Installation In New Or Existing Construction Setting the Subwoofer Speaker/Subwoofer Phase Low-Pass Filter Speaker wire has two conductors. One With the “Low Pass” switch in the 100Hz conductor is attached to the negative (–) position, the PSW8 will only reproduce terminals and one conductor is attached to bass below one hundred cycles. When the the positive (+) terminals of both your switch is in the 140Hz position, the PSW8 speaker and your amplifier. Usually, the will reproduce bass be
