Instruction/ maintenance manual of the product 9319 SPL
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Owner ´ s Manual SOUND PERFORMANCE LABORA TORY STEREO Models 9319, 9320 ® ®.
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.
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.
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 , .
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.
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.
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.
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.
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.
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 .
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.
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.
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 .
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.
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.
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.
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.
An important point after buying a device SPL 9319 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought SPL 9319 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data SPL 9319 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, SPL 9319 you will learn all the available features of the product, as well as information on its operation. The information that you get SPL 9319 will certainly help you make a decision on the purchase.
If you already are a holder of SPL 9319, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime SPL 9319.
However, one of the most important roles played by the user manual is to help in solving problems with SPL 9319. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device SPL 9319 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
