Near A Series Manual - Environmental Indoor/Outdoor Loudspeakers
Contents
1. N EAR KHI MODELS A2 A6 A8 amp VARIATIONS A SERIES ENVIRONMENT PROOF INDOOR OUTDOOR LOUDSPEAKERS 54 2033 02D 0606 NEAR A SERIES ENVIRONMENT PROOF INDOOR OUTDOOR LOUDSPEAKERS BRACKET INSTALLATION A2 MODELS ONLY H aga 9 NN i 77 C777 au EE ered fu t XQ fa aaa lk FLAT SURFACE 90 DEGREE ADJOINING SURFACES CANTED secure both ends A6 and A8 models are too heavy for this type of mounting WARNING Mounting brackets must be secured in accordance with local codes If in doubt consult a professional contractor to determine the integrity of the structure to which the bracket will be attached When reguired a user supplied safety strap can be secured to the back of the speaker cabinet using the threaded brass insert and supplied screw MULTIPLE SPEAKERS AND SOUND COVERAGE Placement is critical when the goal is smooth even sound coverage of an area Horizontal and vertical dispersion usually vary with 2 way speakers so installation orientation should be consistent Models A6 and A8 deliver about 110 and 100 degrees of horizontal sound coverage respectively while the coaxial A2 provides about 90 degrees Too great a distance between any 2 speakers will create a dead spot in the coverage VVhen in doubt use more speakers to ensure adeguate coverage OTHER FACTORS TO CONSIDER Distance is not the only factor affecting sound intensity Others that should be considered in the planni2. UT TO NEXT SPEAKER COMMON CONNECTIONS EXAMPLE OF 70V SYSTEM CONFIGURATION AMPLIFIER WITH 70V OUTPUT 5 SPEAKERS CONNECTED IN PARALLEL USING 16W TAPS NOTE The total number of speakers multiplied by the tap value cannot exceed the output power in watts of the 70V amplifier The above example shows 5 speakers Using the 16W taps you need an amplifier with at least 5 x 16 80W A good rule of thumb is to select an amplifier with 20 greater power in this case an amplifier that delivers about 100W EXAMPLE OF 802 SYSTEM CONFIGURATION AMPLIFIER WITH 8Q OUTPUT Observe correct polarity for maximum RIGHT bass performance 80 80 80 80 SIENA Ls 4Q TOTAL 4Q TOTAL 2 SPEAKERS PER CHANNEL CONNECTED IN PARALLEL SPECIFICATIONS MODEL NUMBER A2 A2T A6 A6T A8 A8T LF Driver 6 MDT 6 MDT 8 MDT HF Driver 1h Polycarbonate 1 Titanium 1 Titanium Freq Response 10 dB 55 Hz to 20 kHz 50 Hz to 20 kHz 45 Hz to 20 kHz Impedance 8 ohm 70V 8 ohm 70V 8 ohm 70V js rt 100W 16W 150W 32W 175W 64W Sensitivity 1M 1W 8 ohm 88 dBspl 89 dBspl 91 dBspl Additional Taps 70V 8W 4W 16W 8W 32W 16W Dignerion Angles Horiz 70 Horiz To Hariz 100 Vert 90 Vert 45 up 35 down Vert 45 up 35 down Speaker Dimensions 9 dia x 8 D 7 Ie x 13716 H x 76 D 1074 W x 1778 H x 104 D Product Weight 8 Ib 10 Ib 11 Ib 12 Ib 18 Ib 20 I
3. b Terminations Gold Plated Rust Proof Barrier Strip Cabinet Color Black Green White Half Space Response NEAR TECHNOLOGIES NEAR A Series Armadillo loudspeakers feature NEAR s unique technologies that improve sound quality and operating reliability All models feature NEAR s MDT Metal Diaphragm Technology and MLS Magnetic Liquid Suspension Unique MDT Metal Diaphragm Technology e High rigidity and low mass of metal versus traditional papers and plastics e Extremely stable cone structure over long periods of time e Fast transmission of sound through the diaphragm means low energy storage e Special anodizing process creates a ceramic coating for increased stiffness Efficient heat sinking of voice coils under long term high power situations Patented MLS Magnetic Liquid Suspension e Voice coil is constantly centered for lower distortion e Voice coil is more efficiently heat sinked by fluid instead of air e Greater linearity is accomplished because the mechanical spider is eliminated e Constant lubrication of the gap prevents oxidation from outdoor use BOGEN COMMUNICATIONS INC Ramsey NJ 07446 U S A 201 934 8500 Fax 201 934 9832 e mail info bogen com www bogen com Specifications are subject to change without notice 2000 Bogen Communications Inc
4. ng phase are adjacent surface reinforcement and environmental effects such as temperature extremes and humidity mainly in outdoor installations LOW FREOUENCY OUTPUT Bass output level depends on a speaker s location The more reflecting surfaces in proximity to the speakers walls ceilings floors the greater the bass output Therefore speakers mounted in free space e g hanging from an overhead support will produce comparatively less bass output UNDERPOWERING VS OVERPOWERING Most speaker damage is caused by amplifiers with too little power An overdriven amp sends clipping distor tion to the speakers Clipping is usually audible it may vary from a harsh sound to a fuzzy or blurry sound If you hear clipping at loud volume levels turn down the volume until the distortion is no longer present Damage caused by operating the speakers at distorted volume levels is not covered by the warranty PAINTING The speaker cabinet and grille can be painted with a thin coat of spray paint Remove the grille and mask the speaker assembly so that only the cabinet gets painted Then if desired spray the grille lightly to avoid plugging the holes MAINTENANCE None required Speaker cabinets can be wiped clean with a soft damp cloth BACK PANEL CONNECTIONS BACK PANEL OF 70V MODELS BACK PANEL OF 8Q MODELS MODEL A2 C 4 8 16 7 A6 C 8 16 32 A8 C 16 32 64 IN FROM AMP OR PRECEDING SPEAKER TAP CONNECTIONS O
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