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<br />SOUNDBLOX, sOL.nd absorbing structural masonry uMs, ofler
<br />an atllBcllvo, e!tlClentand economical means lor acoustical cor-
<br />rectJOl1 and nOI5& conlrol They are made near lho job:;lle by
<br />selected quality con;rete block producers Ihus ehmll1allng COSIly
<br />long d,slano:e Shipping Special mold parts whIch III slandard
<br />automatic block lTl3chllles are used and lhese are supptled by
<br />The Proud'oat Cornrany. rne 'hus Bssunng unlloml qUBtlly 3nd
<br />A(,olJ~UcAI elflclency The uOlls are roadlly Bvallable In all pans 01
<br />lhe country
<br />,--.-..r-- .......... 1 ,...........~.., ~..,~'to. ~.,..rc.""'~~A.-"-~"'- T'r'f"
<br />; SOUNDBlOX' derl\-;!helr excellent sound abSorc">t1ontfr~ a
<br />unique caVIty. $lot resonator COl1S1lUctlon WIth the absorption
<br />~ greally Increased, ~:' mos. case~, by USe 01 melal septa and
<br />,; fibrouslillersln the cavlII&S, The cavIties are closed at tho top and
<br />I Ihe slots allow Ihe closed caVities 10 act 89 damped (Helmholtz)
<br />~ resonalors. The slots 01 the R. RSR and Q Type umts ar ""unnel-
<br />~shaped lor superior acoU$tlcal couollng to lher.fJlle2' anQ/~es
<br />f onalor ~vltles. .",""~}^!i 1f1;~'tfW1.:tA t:~ ..;.,~., ,~. :.
<br />r In effect, t/IG specially desftnod metal &epla, whlc~ renee lhe
<br />, higher IrequellClos bul transm~ Iha lowerJr~Ullncles, provk:le two
<br />l resonators In,each b1ocl(cavlly"where 1')(\1)'.one existed ~e'ore'
<br />Tuned tQ d1Uorent ~eqverf.!~a an octave or more apa~r.t~dUal
<br />~resonaton"o'eaUy ~en,theJrequency, band whefe;Ye!I~h1gh
<br />. sound ab$Cl.fIll.lori ls~obtaI.Mdm18'reSOnalorprlnclple of so\oloo
<br />absorpllon;"used L., Iuch.deVlCeS as eutornobl!e mulllers)ls an
<br />f efficlenl 'fla)' 01 provldlng'sound absorptIon. II has b~en brought
<br />~6 a\:'lGW,levero' effectiveness by the:septum 1iIlers analunnel~
<br />~ll!~~~${J.~,R1~~!\ ~Qd aATyp,Il~SQU~DB~QJ{mjg
<br />Bot/l',lhe JI'Ietlll septa afld,the funnal.ahlped alol'tealures~ol
<br />t/lo'JIl(ldesn}SOUNOBLO~'\lls.ar8 ..hown~ln the.i.seb~t1t1c
<br />~drlwlnga> be low;'; F.Jlthe(" the,'graph;muatrlllea' ~he,p.1~rge
<br />lound,.bsorpuon'tlrllprovemenl 'oblalned by use of)these
<br />lealurell;;Jhe"graph'compares the sound IIbsorpl!on 01 the
<br />modern e', Type R unlta with that 01 the old, obsolete 8't Type
<br />8 units whIch didn't hive the Iunnel,shaped elols and sep:
<br />'lum~type 'llllers.::The"slladed area II theJaddlld lOllfld ,ab-
<br />aorpUOf\provlded ~y tI}~:TYPll R units ;" ".N~~'l'~.:
<br />
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<br />'~'l~'TY'2 II TY'I 0 (I" ..,ry) .....;:"
<br />
<br />Areas where SOUNDBLOX
<br />should be considered
<br />
<br />SchOOls
<br />
<br />gymnasIums
<br />nalatollums
<br />lludltorlulM
<br />music rooms - practice. band. thOfal
<br />mech.nlul equlpmMI row.,
<br />vocaUon&1 rooms
<br />mlllll-purpo~e rooms
<br />leclule foom~
<br />corridors o"ld cl.nrooms
<br />
<br />Induslrlal Pis nt,
<br />
<br />noisy pIaI'I afelS
<br />partlllon~ balwtlan noisy and quiet plant
<br />III11aS
<br />outdoor nolsll screens (to prolllcl Mlghoorl'
<br />mec ham eal equIpment rooms
<br />boiler rooms
<br />Ian room~
<br />onglne exh&usl slacks
<br />
<br />Churches
<br />
<br />na\es and "anSell!S
<br />social halls
<br />classrooms
<br />chapels
<br />mechanic ,I equipment rooms
<br />
<br />Eleclrlc Utllitlos
<br />
<br />(', 'oor !ransformor '1olse screens
<br />generator lOOins
<br />I!n rooms
<br />boiler rooms
<br />
<br />computN rooms
<br />cooling lowor noise screens
<br />newspaper pren rooms
<br />textile 1'",11 weave rooms
<br />englna test cells
<br />reCleatlon halls
<br />bov.llng alleys
<br />skallng r:nks
<br />convenlfon cenlers
<br />tleld houses
<br />car wash facilities
<br />shoollng rong"
<br />retuln a:r shalls
<br />alrcral. maln'en(lnc'l hangars
<br />standbY ger.crlltol faclhlll\s
<br />hospllal mechanical. business ond
<br />utility areas
<br />shlp/ord facUltle,
<br />airport tar'lltles
<br />subways and subwar shllons
<br />tunnels
<br />sewage treatment pttnts
<br />coll~ell/"s
<br />lobc>ratcrle$
<br />hIghway noise screens
<br />tel elype rooms
<br />radiO and le,evislon studios
<br />IMalres
<br />roslaurants
<br />
<br />SOUNOBLCX alll/oad bea, onn slructural uMs haVing the ~amf'
<br />hlQh compres~lve strength as t.rdlnary hollow concrete masonry
<br />unltsollhe same c,)mpOSltlon they are Installed wnvenllonally.
<br />wlll'1lim~ or no added labor, mal{lng IhE'lr In place costlow In
<br />comparison to most other acoust'cal matenals In add\tlon to high
<br />sound absorpllon SQUNDBLOX walls havo SUpNlor soun(i
<br />transmiSSiOn loss pertormance (STC) when compared 10 wdlls 01
<br />ord,nary hollow concrete masonry un,ls olthe same compoSlllon
<br />
<br />The rugged dUlab lll( of SOUNOBLOX uMs permits ,helf use
<br />In walls of mduslna plarts, gymnaSlum~, mech,ullcal equIp
<br />ment rourns, etc Since most ordlllary acoustical materials aro
<br />soft arid genemlly confined 10 cellmys, absorption of sOllnd
<br />In Ihe horlzofllal c reCllons of a room 1$ dllflcull 10 ach.eve With
<br />Ihem SOUNOBLOX uMS pl'ov,de praClrCdl means to bu.ld high
<br />sound ab$Orpho"l Into the wl>!Is and balance the absorption," 0.'1
<br />dlleCllons
<br />
<br />(See pllotos 0[1 pages 2 5 an.;! 7)
<br />
<br />SOUNDlkOX uwls are a'SO w,dely t:sed QuI 01 doors Ie sere!'n
<br />no.5'3 from neIghbors a~ 'n ransfOlmcl, (.001ln9 lower and ex-
<br />pressway nOISO apphca',ons.
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