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INSTALLATION & OPERATION GUIDE
MODEL
®
PSW800
SUB W OOFER
®
®
B LENDING H IGH F IDELITY AND A RCHITECTURE
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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 PSW800 wall mount subwoofer is uniquely designed to provide unobtrusive low frequency 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 at the same time reducing the overall cone Features and Benefits weight. This combination offers phenome- nal rigidity and stiffness-to-mass character- Mica-Filled, Dual Voice Coil istics that make it especially suited for low Polypropylene Woofer frequency reproduction. Niles speaker engineers have coupled this exceptional The mica-filled polypropylene woofer uti- cone material with a dual voice-coil drive lized in the PSW800 is optimized for tran- system that enables ins
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Features and Benefits ™ Inverted Dust Cap MicroPerf Grilles The inverted dust cap feature of the The PSW800 employs Niles’ exclusive PSW800 actually reinforces the cone to fur- MicroPerf grille construction. The excep- ther increase the stiffness-to-mass ratio and tionally tight hole pattern provides reduce distortion. In a subwoofer applica- acoustic transparency at all audio fre- tion, this dust cap inversion offers the addi- quencies and enables the woofer element tional benefit of reducing t
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How Many Subwoofers? Single Stereo Subwoofer How Many Subwoofers? One PSW800 can produce the bass sound from both the left and the right channels For most applications a single PSW800’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 PSW800 A stereo crossover divides the signal and fil- will deliver a
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LEFT IN RIGHT IN LEFT IN RIGHT IN 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
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Connections LEFT — IN RIGHT — IN Now, the volume control will raise and range (or with an external electronic lower the volume for the subwoofer 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 amplifier nected so that the crossover switches can channel to each individual subwoofer. be adjusted to your requirements. You must (See Figure 7). adjus
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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 PSW800 subwoofers Parallel/Serial Speaker Connection Test are connected to the satellite speakers, the overall system impedance to the amplifier 1. Hook up one pair of speakers to the “A” lowers. speaker terminals of your
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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 PSW800 and to the to the rigid non-resonant enclosures of sheetrock surrounding the wall beside the most floor standing subwoofers.
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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 Installation in New To install the bracket, first attach the ™ QuickSnap new construction wings to the Construction bracket by snapping them into the sides of the bracket. The wings can be shortened by Stage One: Before Drywall is Hung breaking them along the scored lines if their Insulating the Wall Cavity. length will interfere with a corner or eaves. The wings and brackets have centering lines If feasible, fill the wall cavity with insulation to simplify the p
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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- plaster down to the lath beneath. Then use ly if there is an unseen obstruction behind a chisel to remove all of the plaster within the wall. BE VERY CAREFUL NOT TO the taped outline. Finally, insert a metal SAW THROUGH EXISTING WIRES, PIPES, cutting blade into a sabre saw and very OR STRUCTURE. IF YOU FEEL ANY slowly and carefully saw the lath. Sawing EXTRA RESISTANCE AS YOU ARE CUT- the lath can easil
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Final Installation In New Or Existing Construction 10. Setting the High-Pass Filter gun or airless sprayer, thinning the paint When the “SAT” filter is in the CUT posi- (prevents clogging of grille holes), and by tion, all of the bass energy will be pro- applying several light coats instead of one duced via the PSW800. When the switch heavy one. is in the FULL position, both the satellite speakers and the PSW800 will reproduce the bass signal. Typically, satellites with Speaker/Subwoofer Phase w
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Operation 3) Satellite Left-Right Phase Reversal 3. Listen to the apparent placement of the If the right satellite is reversed in phase from vocals. the connections on the left satellite, you 4. Turn off the amplifier and reverse one of will hear reduced bass and a “phasey” dif- the connections on the subwoofer. fused vocal image. If you suspect the sound 5. Repeat the listening test with the same is not right and you cannot see any mark- setting of the volume control. When ings on the wire, tr
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Specifications Specifications Model PSW800 Driver Complement 8” Mica-filled polypropylene dual voice coil woofer with inverted butyl-rubber suspension and dust cap Design Principle Infinite baffle for large and varying air volumes Recommended Amplifier Power Ten to one hundred fifty watts per channel Impedance 8 Ohm - Single Subwoofer in Stereo 4 Ohm - Single Subwoofer with Voice Coils Paralleled for full monophonic output Frequency Response 35 Hz to 140 Hz, plus or minus 3dB (on axis) Sensi
