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Meyer Sound MTS-4A manual

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Table of contents for the manual

  • Page 1

    MTS-4A Self-P ow er ed Loudspeaker Systems S uperior engineering for the art and science of sound. Keep these important oper ating instructions Check www .meyersound.com for updates OPERA TING INSTRUCTIONS OPERA TING INSTRUCTIONS [...]

  • Page 2

    Protective earth gr ound T erre d e protection Die sch utzerde Tierr a proteccionista Fram e or chassis Masse , châssis Rahmen od er chassis Armad ura o chassis Important oper ating instru ctions P our indequer importan t instru ctions Zu wi chtig e betriebs- anweisun g und unter- haltsanweisun g zeigen P ara indi car importante funci onar y man t[...]

  • Page 3

    3 E NGLISH • T o r edu ce the risk o f electric sh ock, disconnect th e unit from th e AC main s befor e installin g audi o cable . Reconnect th e power cord only after makin g all sign al connecti ons . • Connect th e unit to a two-pole , three wire gr oundin g main s receptacle . Th e receptacle m ust be connected to a fuse or circuit br eake[...]

  • Page 4

    The M eyer MTS-4A self-power ed loudspeak er is a compact, self-contain ed, full-r ang e system suited for clubs an d small theatr es (throw distan ces less than 100 ft). Its tr apezoid al shape facilitates arr ay desi gn that maximizes cover age an d SPL for th e size of th e array . Since all fr equenci es are pr odu ced from on e cabinet, th e M[...]

  • Page 5

    circuit br eakers h eat up (and trip) at varyin g rates , it is essenti al to und erstand th e types of curr ent r atings and h ow they corr espond to cir cuit break er and cable specifi cation s. The maximum continuous RMS current is th e maxim um RMS curren t over a dur ation o f at least 10 seconds . It is used to calculate the temper ature in c[...]

  • Page 6

    The MT S-4A presen ts a 10 k Ω balanced input imped ance to a three-pin XLR conn ector wired with th e followin g conventi on: Pin 1 220 k Ω to chassis and earth gr ound (ESD clamped) Pin 2 Sign al Pin 3 Sign al Case Earth (AC) gr ound an d chassis Shortin g an input connector pin to th e case can form a gr ound loop an d cause hum. Pins 2 an d[...]

  • Page 7

    7 RIGGING compressed air to clear d ust from th e grill, filter , fans , and heatsinks . Mak e sure that th e air du cts are clear an d that ther e is at least six inch es clearan ce for e xhaust behind th e cabinet. T wo variable-speed prim ary fan s run contin uously with an inau dible operatin g noise o f 22 dBA at 1 m at th eir slowest speed. W[...]

  • Page 8

    8 It is essen tial that even th e most car efully assembled sound systems be an alyzed with precise m easurem ent tools . W e recomm end usin g the Me yer Sound SIM ® Sy stem II Sound Analyzer 1 and CP-10 P ar ametric Equalizer 2 to • assist the pr ocess of ch oosing and confi guring speak ers; • measure pr opagation d elays between subsystems[...]

  • Page 9

    LD-1A WITH F LOWN MTS-4A AND CQ; 650-P ON THE F LOOR This ex ample shows th e LD-1A integr ating a complete system of self-power ed speakers f or a larg e venue . Alth ough channels 1, 3, and 5 con stitute half of th e system, channels 2, 4, an d 6 can be used with id enti cal connecti ons to cr eate the oth er half. The upper an d lower MTS-4A arr[...]

  • Page 10

    W e do n ot recomm end usin g phase poppers to analyze d river polarity . The phase respon se for all d rivers varies , to some degr ee , over the fr equency r ang e in which it operates . Since the phase popper , a popular but inaccurate tool, d oes not discern variati ons in phase r esponse with r espect to frequen cy , it provi des n o useful in[...]

  • Page 11

    A RRA Y D ESIGN FOR L OW F REQUENCIES Since th e MTS-4A con tains sub an d low frequen cy drivers , in additi on to mid an d high d rivers, arr ay desi gn for the MT S-4A must in corporate th e differen t array r esponse o f high and low frequen cies . The beam wi dth f or a single speak er widen s as the fr equency d ecreases . Frequen cies below [...]

  • Page 12

    12 MT S-4A SPECIFICA TIONS Copyrigh t © 2000 Meyer Soun d Laboratories , Inc . All Righ ts Reserved Acoustical 1 (each loudspeaker) Cove rag e Tr ansducers Audio Input Amplifiers AC Power Phy sical Notes Operating Fr equency Range 2 Free Field Half-Space Phase Response Maximum P eak SPL 3 Signal to Noise Ratio Sub Frequenc y Low Fr equency Mid Fre[...]

  • Page 13

    REAR P ANEL DET AIL All units in inch es 13 MTS-4A DIMENSIONS 30.26 21.97 13.36 13.16 10.63 21.26 56.75 30.00 7.5 14.125 28.5 13.00 Bottom To p Front Side MTS-4A[...]

  • Page 14

    14 Mey er Sound Laboratories , Inc. 2832 San P ablo Aven ue Berkeley , CA 94702 tel: 510.486.1166 fax: 510.486.8356 e-mail: inf o@meyersoun d.com www .meyersound .com CONT A CT INFORMA TION 05.029.006.02 Rev A Check www .meyersound.com for updates[...]