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The rules should oblige the seller to give the purchaser an operating instrucion of SPL 9319, along with an item. The lack of an instruction or false information given to customer shall constitute grounds to apply for a complaint because of nonconformity of goods with the contract. In accordance with the law, a customer can receive an instruction in non-paper form; lately graphic and electronic forms of the manuals, as well as instructional videos have been majorly used. A necessary precondition for this is the unmistakable, legible character of an instruction.
What is an instruction?
The term originates from the Latin word „instructio”, which means organizing. Therefore, in an instruction of SPL 9319 one could find a process description. An instruction's purpose is to teach, to ease the start-up and an item's use or performance of certain activities. An instruction is a compilation of information about an item/a service, it is a clue.
Unfortunately, only a few customers devote their time to read an instruction of SPL 9319. A good user manual introduces us to a number of additional functionalities of the purchased item, and also helps us to avoid the formation of most of the defects.
What should a perfect user manual contain?
First and foremost, an user manual of SPL 9319 should contain:
- informations concerning technical data of SPL 9319
- name of the manufacturer and a year of construction of the SPL 9319 item
- rules of operation, control and maintenance of the SPL 9319 item
- safety signs and mark certificates which confirm compatibility with appropriate standards
Why don't we read the manuals?
Usually it results from the lack of time and certainty about functionalities of purchased items. Unfortunately, networking and start-up of SPL 9319 alone are not enough. An instruction contains a number of clues concerning respective functionalities, safety rules, maintenance methods (what means should be used), eventual defects of SPL 9319, and methods of problem resolution. Eventually, when one still can't find the answer to his problems, he will be directed to the SPL service. Lately animated manuals and instructional videos are quite popular among customers. These kinds of user manuals are effective; they assure that a customer will familiarize himself with the whole material, and won't skip complicated, technical information of SPL 9319.
Why one should read the manuals?
It is mostly in the manuals where we will find the details concerning construction and possibility of the SPL 9319 item, and its use of respective accessory, as well as information concerning all the functions and facilities.
After a successful purchase of an item one should find a moment and get to know with every part of an instruction. Currently the manuals are carefully prearranged and translated, so they could be fully understood by its users. The manuals will serve as an informational aid.
Table of contents for the manual
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Page 1
Owner ´ s Manual SOUND PERFORMANCE LABORA TORY STEREO Models 9319, 9320 ® ®[...]
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SOUND PERFORMANCE LABORATORY S TEREO V ITALIZER Owner´s Manual by Paul White and Hermann Gier Version 2.2/95 The information in this document has been carefully verified and is assumed to be correct. However Sound Performance Laboratory (SPL) reserves the right to modify the product described in this manual at any time. Changes without notice. Thi[...]
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3 STEREO Contents F orw ord 3 Introduction 4 Operation saf ety 4 Connections 5 Applications S tudio 6 T ape - duplication 7 Broadcast 7 Sound reinf orcement 8 V ideo & film post production 8 First s teps 9 T he c ontrol elements of t he S TEREO V IT ALIZER 11 V IT ALIZER A CTIVE 11 P EAK 11 B ASS 11 M ID -H I T UNE 12 P ROCESS 13 H ARMONICS 14 [...]
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4 STEREO T he S TEREO V IT ALIZER is an equalizer c oncept whic h mak es use of scientif ic psyc hoac oustic tec hnology to process audio signals . The unique c ombina- tion of dynamic equaliz er s , amplitude-c ontrolled phase c orrection and harmonic f iltering in t he S TEREO V IT ALIZER opens up a whole new lis tening dimension by adapting t he[...]
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5 STEREO Bef ore connecting t he S TEREO V IT ALIZER switc h t he power of f at all c onnected units . T he S TEREO V IT ALIZER is availa ble in two v ersion up to autumn 1995: V er sion 1: unbalanced jac k version (mono-1 /4“ jac ks wired tip hot) V er sion 2: prof essional version wit h unbalanced (switc hing mono- 1 /4“jac ks wired tip hot) [...]
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6 STEREO Applications: Studio A A p p p p l l i i c c a a t t i i o o n n 1 1 : : The S TEREO V ITALIZER inserted into the Master-Inserts of the console. A A p p p p l l i i c c a a t t i i o o n n 2 2 : : The S TEREO V ITALIZER inserted between Noise-Reduction and Recorder to improve archived recordings. 1 1 . . T he most obvious application of t [...]
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7 STEREO A A p p p p l l i i c c a a t t i i o o n n 3 3 : : The S TEREO V ITALIZER inserted between Compressor und Recorder. In t he field of electronic music , the S TEREO V IT ALIZER can be used to add new range and dept h to samplers and synthesiz er s and also to f urther process exis ting ef f ects suc h as delay and rev erberation. Even budg[...]
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8 STEREO In live perf ormance or in c lub installations , the S TEREO V IT ALIZER is a powerf ul ally in maint aining s peec h intelligibility under dif ficult c onditions . It is also of great benef it in syst ems designed to pla y recorded music because t he illusion of loudness can be maintained at lower absolut e SPLs. T his c ould be particula[...]
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9 STEREO W hen setting up the S TEREO V IT ALIZER f or the f irst time , it is wise to approac h the c ontrols in a s pecif ic order to av oid conf usion and to ac hieve positive results right from t he start. Use a CD as source . Set-up positions: -B ASS to z ero (center position) - H ARMONICS to M IN (c ounter c l oc kwise) - M ID -H I T UNE to 3[...]
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10 STEREO 5. A section wit hin the S TEREO V IT ALIZER with one of t he most decisive inf luences on the sound is P R OCESS control. If y ou continue to tur n the P ROCESS c ontrol up , more of the signal is added to t he B ASS and M ID -H I T UNE sections whils t dominant mid frequencies are reduced acc ording human hearing at t he same time . The[...]
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11 STEREO The control elements of the S TEREO V ITALIZER ® T he V IT ALIZER A CTIVE f unction switc hes the S TEREO V IT ALIZER on or off . T he status LED indicat es that t he S TEREO V IT ALIZER has been activated. T he V IT ALIZER A CTIVE f unction is a relais-hard-bypass f unction. In the ev ent of a power f ailure the S TEREO V IT ALIZER is a[...]
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12 STEREO F ig .1: T he dotted line shows frequency r esponses f or a soft Bass (S OFT )a t maximumP ROCESS and a M ID -H I T UNE of 3.5 kHz. T he solid line shows t he phase response , whic h alwa ys drifts onl y a f ew degr ees if the amplitude is increased. Fi g. 2 : T he dotted line shows frequency r esponses f or a hard Bass(T IGHT )a t maximu[...]
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13 STEREO Control elements appropriate frequencies , thus c hanging the s pectral cont ent of t he original signal. T he S TEREO V IT ALIZER , how ever , relies on a more subtle met hod of amplitude-depending phase shifting . This does not inv olve altering t he s pectral c omposition of the signal but it does maint ain the subjectiv e impression o[...]
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Fi g. 4 : T he dotted line shows frequency r esponses f or a soft Bass (S OFT ) at varying P ROCESS and a M ID -H I T UNE of 3.5 kHz. T he solid line shows t he phase responses , whic h alwa ys drift onl y a f ew degr ees if the P R OCESS inten- sity is increased. T he diagram shows v ery clearl y that t he mid attenua- tion gets s trong er as the [...]
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15 STEREO Stereo Width 8 f ilter interv enes at l ow frequencies . If the M ID -H I T UNE f ilter is at 1 kHz, the H ARMONICS f ilter af f ects higher frequencies . T he c haracteristics of t he tw o f ilters theref ore complement eac h other in an ideal f ashion. T he I N switc h switc hes the S URROUND P R OCESSOR on or off . The s tatus-LED indi[...]
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16 STEREO Specifications S TEREO V ITALIZER Rear Panel Version 1 (Model 9319, unbalanced jack-version, until autumn 1995) - unbalanced input & output stages (0 dB) - mono-1 /4inc h-jac ks - 2-wire power c ord - relais-hard-bypass Version 2 (Model 9320, unbal. jacks & bal. XLR-Version) - balanced (+6 dB) & unbalanced (0 dB) in pu t &[...]
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17 STEREO SPL electronics GmbH (hereafter called SPL) products are warranted only in the country where purchased, through the authorized SPL distributor in that country, against defects in material or workmanship. The specific period of this limited warranty shall be that which is described to the original retail purchaser by the authorized SPL dea[...]