8.5 in. 216 mm - Community Professional Loudspeakers
8.5 in. 216 mm - Community Professional Loudspeakers
8.5 in. 216 mm - Community Professional Loudspeakers
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PC6641" ENTRANCE 60 X 40 DEGREEHIGH FREQUENCY HORNSPECIFICATIONS (See notes 1 - 3)Horn Type: Pattern Control, High frequency hornOperat<strong>in</strong>g Range: 1 kHz - 20 kHzUsable LF Limit: 660 HzFlare Rate: 620 HzThroat Diameter: 1 <strong>in</strong>. / 25.4 <strong>mm</strong>Axial Sensitivity 1W/1m (with VHF100 driver):112 dB SPL (1.6 kHz - 16 kHz 1/3 octave bands)Maximum Output (with VHF100 driver):125 dB SPL / 132 dB SPL peak (with VHF100 driver)Nom<strong>in</strong>al -6 dB Beamwidth:Horizontal: 60° (+7° / -11°, 2 kHz - 20 kHz)Vertical: 35° (+13° / -9°, 3 kHz - 20 kHz)Axial Q: 29.1 (2 kHz - 20 kHz)Axial DI: 14.6 (2 kHz - 20 kHz)Reco<strong>mm</strong>ended Signal Process<strong>in</strong>g (for VHF100 driver):1.8 kHz crossover po<strong>in</strong>t <strong>in</strong> a systemConstruction:Hand-lam<strong>in</strong>ated, re<strong>in</strong>forced composite, black fiberglassDouble wall construction us<strong>in</strong>g embedded balsa woodRequired Accessories:Electronic crossover, EqualizationOptional Accessories:DSC42: Digital crossover / processor2BKT: Rear yoke-type mount<strong>in</strong>g bracketCPLATE: Adapts 3 bolt driver to 2 bolt PC664 hornBolt Pattern:(2) 5/16 <strong>in</strong>. / 8 <strong>mm</strong> holes on 3 <strong>in</strong>. / 76 <strong>mm</strong> bolt circleDimensions:Height: <strong>8.5</strong> <strong>in</strong>. / <strong>216</strong> <strong>mm</strong>Width: 14.5 <strong>in</strong>. / 368 <strong>mm</strong>Depth: 10.5 <strong>in</strong>. / 267 <strong>mm</strong>Weight: 4 lb. / 1.8 kgShipp<strong>in</strong>g Weight: 7 lb. / 3.2 kg1. Sensitivity: Free field p<strong>in</strong>k noise measurement at 15 ft / 4.6 m at75% power; extrapolated to 1 meter and an <strong>in</strong>put of 2.83 volts RMS.0 dB SPL = 20 uPa.2. Watts: All wattage figures are calculated us<strong>in</strong>g the rated nom<strong>in</strong>alimpedance.3. EQ: Specifications are without equalization, normally requiredfor optimum performance.<strong>8.5</strong> <strong>in</strong>.<strong>216</strong> <strong>mm</strong>APPLICATIONS:• High Fidelity Component Systems• Sports Facilities• Perform<strong>in</strong>g Arts• Concert Systems• Houses of WorshipFEATURES:• Precise Horizontal and Vertical Control Ma<strong>in</strong>ta<strong>in</strong>sConsistent On and Off Axis Frequency Response• High Q Design Provides Increased IntelligibilityOver Distance• Strong, Light Weight, Non-Resonant, Weather ResistantFiberglass ConstructionDESCRIPTIONThe PC664 horn is designed by Co<strong>mm</strong>unity to function as ahigh frequency horn <strong>in</strong> a multi-way component system.Mated with a Co<strong>mm</strong>unity VHF100 1" compression driver itwill provide focused, extremely high output soundprojection, with predictable performance and exceptionallong term durability for professional sound re<strong>in</strong>forcementsystems. Performance data for Co<strong>mm</strong>unity horns is welldocumented, provid<strong>in</strong>g the designer and consultant withhighly predictable and consistent coverage patterns forsystem design.Each horn is a handcrafted, one-piece, precision waveguide,precision molded <strong>in</strong> hand-lam<strong>in</strong>ated, fiber-re<strong>in</strong>forcedfiberglass. Balsa wood is embedded <strong>in</strong> the sidewalls for nondiaphragmatic,resonant-free operation. With substantialfiberglass layer<strong>in</strong>g and <strong>in</strong>tegral throat and driver flangeconstruction, Co<strong>mm</strong>unity horns are built to withstand thetorque loads of the heaviest compression drivers. Their<strong>in</strong>herent strength and rigidity enhances sonic efficiency byprevent<strong>in</strong>g sound energy losses through the horn walls orfrom vibration. Co<strong>mm</strong>unity fiberglass horns are <strong>in</strong>herentlyweather-proof under all conditions of use. There is a fiveyear warranty.PC664 Page 1 of 2© 1999, Co<strong>mm</strong>unity Light & Sound, Inc.
PC6641" ENTRANCE 60 X 40 DEGREEHIGH FREQUENCY HORNFREQUENCY RESPONSEdB SPL25 Hz Resolution, 1/8 octave smooth<strong>in</strong>g12011010090807010 100 1,000 10,000Frequency <strong>in</strong> HertzBEAMWIDTHIMPEDANCEOhmsM<strong>in</strong> Z 1500 Hz - 20000 Hz = 9.4 Ohms @ 7132 Hz403224168010 100 1,000 10,000Frequency <strong>in</strong> HertzAXIAL Q100HorizontalVertical1000Degrees10Q1001100 1,000 10,000Frequency <strong>in</strong> Hertz10100 1,000 10,000Frequency <strong>in</strong> HertzDIMENSIONSARCHITECTS' AND ENGINEERS' SPECIFICATIONSThe horn shall be a 1 <strong>in</strong>ch throat entrance, Pattern Control, high frequency device. It shall be made as one piece us<strong>in</strong>g handlam<strong>in</strong>atedfiberglass, with double wall constructions formed by res<strong>in</strong>-encapsulated, sandwich core wood. It shall <strong>in</strong>clude an<strong>in</strong>tegral rear flange for mount<strong>in</strong>g a 1 <strong>in</strong>ch exit compression driver and a flat, front flange to facilitate mount<strong>in</strong>g. The usableoperat<strong>in</strong>g range shall be from 1 kHz to 20 kHz with nom<strong>in</strong>al -6 dB beamwidths of 60° horizontal, deviat<strong>in</strong>g no more than+7° / -11° between 2 kHz and 20 kHz, and 35° vertical, deviat<strong>in</strong>g no more than +13° / -9° between 3 kHz and 20 kHz. Thehorn shall be <strong>8.5</strong> <strong>in</strong>. (<strong>216</strong> <strong>mm</strong>) H x 14.5 <strong>in</strong>. (368 <strong>mm</strong>) W, x 10.5 <strong>in</strong>. (267 <strong>mm</strong>) D, and weigh 4 lb. (1.8 kg).Specifications subject to change without notice.PC664 Page 2 of 2HD664-991020
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