Atlas Sound 100V User's Manual
Contents
1. momo eem mom De aea m Gm E a FAPSUB Frequency Response i LII LIII i 1 i 1 i i i b i i I i i amp i 1 i 1 i I i 1 i i 1 L 1 i L ee ee i H pss i I F i FAPSUB Impedance Ohms vs Frequency 9 Frequency Hz erensia anenee m lm a eT E emm srs ee TE BEp 8 F R d as E BB acnIisx cen ee ee 110 gp 145 lt M 2 N L gt lt ft H 0 2 2 TT m gt L X gt X lt 00 2 TT 2 ac a fe Atlas Sound LO ue LO 2 a LL 80 01 g 9H 6LZCOOSIV 4 aAnoedsai 411984 Jo Ajuiedoud 19470 d punos sey seuies 1 1 pue punos sepy pamasa siuBu 1 punos seny 800ZO2. x o x xl xl lt o xe c o o lt o x il il xl o pus o gt o xl V xe c xe c V o Py gt il o x o 2 o co lt c v o Pw oo N AOIN EE sound Subwoofers and the Inverse Square Law Even though frequencies below 200Hz are relatively omni directional listeners can still localize the subwoofer from the volume produced To avoid hot spots it may be necessary to use two or more subwoofers tapped at a lower setting spread throughout the room instead of a single subwoofer tapped at maximum wattage Ratio of Subwoofers to Full Range Speakers Due to the many potential variables it is difficult to give accurate sugges tions on system design It is important for the system designer to look at the required SPL at ear level ambient noise in the room speaker trans former efficiency and transformer insertion loss to determine the num ber of speakers and amplifier power required In 70 7V 100V systems care should be taken so the total speaker power taps do not exceed the amplifier s 70 7V output capability The following rule of thumb information and examples are offered to provide a starting point for system design For good low frequency augmentation in a full range sys
3. Amplifier Low Frequency Capability Many 70 7V 100V power amplifiers on the market today are from the era when business music systems extending down to only 100Hz were widely accepted These less expensive amplifiers are not capable of driving today s high fidelity systems that require sound below 100Hz When specifying the Atlas Sound FAPSUB which operates well below 100Hz it is VERY IMPORTANT to use a power amplifier capable of full output down to and below the lowest frequency going INTO the amp which is often around 50Hz An amplifier with low frequency capability is absolutely crucial whenever the system includes a subwoofer and is very important for today s high fidelity business music systems Architect amp Engineer Specficiations The loudspeaker system shall be Atlas Sound FAPSUB or approved equal System shall include a high performance 8 subwoofer loudspeaker ported bass reflex enclosure and stud mount grille for conventional ceil ing installation Frequency response for the system shall be 45Hz 120Hz x10dB and the sensitivity shall be 89dB SPL at 1W 1M Loudspeaker shall be comprised of an 8 low frequency cone type driver Magnet shall be a minimum of 200z 580g and the voice coil diameter shall be 1 Transformer shall be 70 7V with primary taps at 1 9 3 8 7 5 15 30 and 60 watts A front mount tap selector switch shall be included This switch shall have a transformer bypass setting for 80 direct cou
4. pled operation Enclosure shall be a deep drawn 937 ir steel enclosure design To facilitate connection in conduit systems enclosure shall be equipped with an access panel covering a recessed terminal cup This cover shall provide a combination 34 19mm inside diameter 1 25mm inside diam eter knock out on the side access and a top access compression fitting strain relief to facilitate flexible conduit up to 22mm outside diameter or 1 25mm inside diameter conduit when the compression fitting is removed External wiring shall be accomplished via a removable lockable wiring connector with screw down terminals to provide both secure wire termination and prewiring capability before loudspeaker installation The 4 pole locking Phoenix Style Euro connector shall facilitate in out connections and shall be located in the recessed area behind the conduit access panel Seismic support eye shall be provided on top of enclosure for additional suspension point when used in drop tile ceilings Construction of enclo sure shall be a minimum of 18 gauge deep drawn galvanized metal The system shall include a support backing plate to reinforce the ceil ing material and tile support rails for use on either 2 x 4 609mm x 1219mm or 2 x 2 609mm x 609mm suspended ceiling tiles This assembly can all be installed from beneath the ceiling tile Overall front face diameter shall not exceed 15 400mm overall depth from the bottom o
5. 3 FAX 800 765 3435 System Design Considerations How many subwoofers to use where to place them and at what wattage to tap them will be different in almost every situation Variables include Size of the Room Speaker Mounting Ceiling Height Ambient Noise Level Type of Music Available Speaker Locations Generally speaking separate electronic crossovers and amplification are not necessary for the FAPSUB However in certain high SPL situa tions the increased efficiency gained by using an active crossover and dedicated amplifier is beneficial Many amplifier manufacturers offer plug in cards to provide this function on their products A very cost effec tive in line electronic crossover is also available from RDL Labs Model ST CX1VV for use with dedicated amplifiers For contemporary music reproduction the minimum subwoofer level should be set to match the volume of the full range speakers however for some high energy music applications the maximum level could be as much as 10dB louder than the full range speakers Like any speaker use of the boundary effect will increase the output of the FAPSUB Placing the loudspeaker within 3 of a wall will increase the output by 3dB Placement within 3 of a corner will increase the level another 3dB 6dB total FAPSUB AtlasSound com 2 4 ATS002219 RevB 10 08 x c z E o o lt q gt I il il
6. ATS002219 RevB 10 08 o x c z E 4 o o lt gt I il o il x o x xl xl lt o xe c o o p lt o x il 4 xl o V gt o 4 xl 4 V xe c xe c V o Py gt il o x o 4 t o co lt c v o Pw oo N AOIN EE sound 1601 JACK MCKAY BLVD ENNIS TEXAS 75119 U S A FAPSUB Strategy Series Il In Ceiling 70 7V 80 Subwoofer System Specifications Woofer Size Woofer Impedance Transformer Taps at 70 7V Power Handling Sensitivity 1 W 1 M Frequency Response Dispersion Low Pass Filter Magnet Weight VC Diameter VC Material VC Former Material Cut out Diameter Height Diameter TELEPHONE 800 876 3333 FAX 800 765 3435 Features e Tuned and Ported Long Excursion 8 Subwoofer System Produces Amazing Extended Low Frequency Response in Any Ceiling Speaker System e High Efficiency Passive Crossover Network Eliminates the Need for Dedicated Amplifier and or Active Crossover e Low Crossover Point Greatly Reduces Localization Ability of Listener to Identify the Subwoofer Location e Front Mounted Tap Selector Switch for Easy System Tuning Adjustment Includes Transformer
7. Bypass Setting for 80 Direct Coupled Operation e Easy Installation in Drop Tile or Sheetrock Ceilings Via C Ring V Rail Tile Bridge and Dog Leg Mounting System Included e Uniquely Designed Easy Access Input Panel Design Allows for Thru Conduit Runs Using Flexible or Rigid Conduit e Detachable Phoenix Style Locking Four pole Euro Connectors for Easy Daisy Chain Wiring e Attractive Stud Mount Grille Matches Aesthetics of Other Atlas Sound FAP Series e UL Listed 1480 Applications FAPSUB In recent years there has been a shift in market demand for commer cial sound systems to deliver higher fidelity sound Retail restaurant and hospitality owners and managers are finding that their customers are expecting the quality of their shopping or dining experience to be enhanced by music reproduced at nearly the same sound quality they 8 203mm expect in their home theaters and car stereos Business owners now 80 Direct Coupled Nominal realize that the excitement caused by a quality audio system can turn into 1 9 3 8 7 5 15 30 amp 60 Watts increased customer satisfaction The FAPSUB when used in conjunction with other Atlas Sound full range speakers provides great sounding back 100 Watts RMS ground foreground music reproduction suitable to these applications 89dB Average 45Hz 120Hz 10dB 55Hz 100Hz x6dB Omni Three Pole Design 18dB octave 120Hz Nominal 200z 580g 85 5mm C
8. aped formed mounting rails and a C Ring assembly The C Ring can be attached to the rails with the screws provided to extend support to the T Bar grid in sus pended ceiling applications Multiple hole locations are provided to allow the C Ring to be positioned to the outer edge the tile if necessary For existing dry wall applications the tile bridge C Ring and support rails can be inserted into the hole cut for the FAPSUB For easy positioning the V shaped support rails match the shape of the C Ring tabs for easy maneuvering and location when working blindly above the deck For new construction drywall ceiling applications the optional FAP82 TR trim ring is available This unit provides a marked location for drywall installers to cut around essentially reserving the desired location in the ceiling until final installation of FAPSUB Mounting holes are provided to accommodate 16 or 24 OC stud joist mounting A support ring is also provided on the top of the FAPSUB enclosure to facilitate an auxiliary support cable NOTE IT IS MANDATORY THAT THIS SECONDARY SUPPORT BE UTILIZED IN DROP CEILINGS FOR SAFETY AND SEISMIC CONSIDERATIONS C Hing V Hails FAP82 TH 2008 Atlas Sound L P All rights reserved Atlas Sound and Strategy Series are trademarks of Atlas Sound L P All other trademarks are property of their respective owners Atlas Sound 1601 JACK MCKAY BLVD ENNIS TEXAS 75119 U S A TELEPHONE 800 876 333
9. f the ceiling shall not exceed 12 323mm Grilles shall be a press fit installation manufactured 24 gauge perforated mesh and finished in white epoxy AtlasSound com 3 4 4 4 277 deere d m CETE PP Pe Pee E EE ee ee EORR OE ERE S ee ee ee ee eee 7 3 1 0 ee ee a i i LI 8 8 8 mmu om am OG OE RR m ROG m Peer RAO G SU ROS GRO mim mmm 8 1 1 ERG RGE EO XR ORO OG EDGE GE REO ROS RD OR D S GE GO Gb S GE E zm mm m mm h L E AtlasSound com 4 dm oda mod ow dh zc omo o G m 1 e m m ommo momo m mo omo momo omo omo omo om oom M M ee ee eee ee Frequency Hz RE T morcm E ee ee mm
10. opper Kapton 14 355mm 12 324mm 15 400mm FAPSUB back AtlasSound com 1 4 General Description The FAPSUB consists of a highly efficient 8 subwoofer designed for optimal performance in its included enclosure system The woofer fea tures an extended vented pole piece for higher excursion and better heat dissipation and a Kapton voice coil former for increased power handling A highly efficient 3 pole filtering network eliminates unwanted high frequencies from the woofer while the 937 in tuned and ported deep drawn steel enclosure provides frequency response down to 45Hz 10dB A specially designed rippled speaker dust cap helps eliminate nearly all frequency artifacts emanating from the center of the woofer ATS002219 RevB 10 08 cone A special low saturation 70 7V 100V transformer is included with pri mary taps at 1 9 3 8 7 5 15 30 and 60 watts 70 7V to match and balance the subwoofer with full range speakers without the need for sep arate amplification A convenient front mounted selector switch allows tap selection without the need to remove the speaker from the ceiling This tap selector switch also includes a transformer bypass setting for 80 direct coupled applications Mounting is simplified with Strategy Series style Dog Leg tabs that allow easy installation into drop tile or drywall ceilings with the provided tile bridge assembly The tile bridge consists of two V sh
11. tem all full range speakers FAPSUBs on the same amplifier a single FAPSUB should be used for every four full range speakers For excellent low frequency augmentation in a full range system all full range speakers and FAPSUBs on the same amplifier a single FAPSUB should be used for every two full range speakers Amplifier Limitations Even with the extreme efficiency of the FAPSUB it will not overcome the limitations of an underpowered system Be sure to allow sufficient head room by using basic system design parameters choosing an amplifier Small Sports Bar Square Feet 1 500 Ceiling Height 9 75 Digital Music Example Peak Ambient Noise Level Program Full Range Speakers Eight Atlas Sound FAP42T speakers tapped at 4 watts each 32 watts total will provide 90dB on axis at 3 5 ear height 15dB above ambient 13 5 spacing between speakers provides minimum overlap coverage at AKHz Subwoofers Two Atlas Sound FAPSUB subwoofers tapped at 30 watts each 60 watts total will fill out the low frequencies at 8dB above the level of the full range speakers If boundary loaded into one corner of the room the level will be increased another 6dB 14dB above the full range speakers Total Wattage 92 watts x 1 3 Multiplier for headroom 119 6 watts Amplifier Power Suggested 120 Watts Atlas Sound AA120 1601 JACK MCKAY BLVD ENNIS TEXAS 75119 U S A TELEPHONE 800 876 3333 FAX 800 765 3435
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