Sound Performance Lab 2595 manuale d’uso

Manual Pa ssive Equ alizer with 120 V Make up A mpli f iers Pa sse q Model 2 5 95 - . '  °  . ) '  ) ' . '  °  . ) '  . ) '  °  ) '  - '  °  - . '                               ?[...]

2 Passe q Versio n 1.0 – 7 / 20 0 6 Des ig ner: Wolf g ang Neuman n Th is use r's guide con tai ns a de sc rip tio n of th e produc t . It in no way repr es ent s a g uar ante e of par tic ular char ac ter is ti c s or re sult s of u se. Th e inf or mat ion in th is do cum ent h as be en c are - f ully comp ile d an d ver i ed and , unl e[...]

3 Passe q Impor t ant Safet y Information ................................................................ 4 Hook Up ........................................................................................ 5 Introduc tion .................................................................................... 6 Uniq ue Featu res , Spec ial Featu res ..[...]

4 Passe q Ple as e n ote an d re tai n thi s inf or ma tio n. C are f ully read and fol low al l of t he saf et y and op er- ati ng inst r uc tio ns bef ore you use th e machin e. Be doubl y caref ul to note and follow th e war n- ing s and speci al safe t y notic es. Connec tions: Only u s e th e c onne c ti ons as de sc r ibe d. Oth er co nne c t[...]

5 Passe q Be ver y carefu l to check that the rear chas sis power s elec tion switch is se t to the correc t local line voltage position before using th e unit ( 2 30 V p osition: 220-240 V, 115 V position: 110- 120 V )! Whe n in doub t about a source, cont ac t your dealer or a pro fes sio nal elec t ri cian . Before connec ting any equipmen t mak[...]

6 Passe q SP L Pa sseq —t he most powerful p a ssiv e E qu al ize r e ver ma de Uniqu e Features • Th e most pow er f ul pa ssi ve EQ ev er made— 72 (! ) pa ssi ve lter s per channe l in one EQ. • 120 V makeu p am pli er s b a se d upon SP L S UPR A- OP s wit h 150 dB dy nam ic rag e a nd 20 0 V /ms slew rate. • Indi v idual coil s [...]

7 Passe q Adva ntages of Passive Filt erin g • T y pi ca lly c oil in duc t ance in vir tua lly a ll ac t i ve l ters is achi eve d t hroug h si mula tio n. T r ue pa ssi ve coil l ters , on t he contr ar y, c an only delive r th e g enuin e, chara c teri st ic sound ass o - ciate d with indu c ti ve compo nent s . • Inhe rent dis tor t i[...]

8 Passe q 12 0 Vo lt Ma keu p Am pli ers Wi th p a ssi ve  lter ing c ome s an u navoi dabl e dro p in sig n al le vel that req uire s make up amp li- c ati on, and w it h th e P a ss eq, her e SPL ’s e x tr aor dinar y Sup ra - OP s , wi th t hei r uniq ue ana log 120 -vol t te chn olog y, co me into pl ay. W ith a 116 d B s ig nal- to [...]

9 Passe q Lund ah l T ran sformers Th e Swe dish r m o f Lun dahl i s rec og nize d wo rl d wid e fo r the s uper io r son ic qual iti es of i t s han d made tr ans for m er s. SPL ha s use d Lun dahl tr ans fo rm er s for many year s, t y pic al ly for opt ional i n- an d out pu t st age s of v ar iou s pro duc t s. In th e c as e of t he P a s[...]

10 Passe q R ear Panel    1JO 8JSJOH9-34PDLFUT (/%IPUDPME "7*43*426&%&$)0$c-&$53*26&/&1"40673*3 3*4,0'&-&$53*$4)0 $, %0/0501&/ $"65*0/ "$.BJOT*OQVU "$.BJOT*OQV[...]

11 Passe q Power and Signal Connec tions Be ver y caref ul to chec k t hat the rear chassis power selec tion switch is se t to the cor rec t loc al line v oltag e position ( eithe r 230 or 115 vo lts) bef ore using the unit! Before conne cting any equipme nt make sure that any machine to be conne cted is tur ned of f ( on the Passe q rear panel the[...]

12 Passe q One Coi l per F ilt er , one Cor e pe r C oil Ea ch Pa ss eq lter is ind iv idual ly const r uc ted for it s i ntend ed f requ enc y, t hat is, each coil, condenser and v ariable resis tor (var . resis tor=boost or cut control ) ensemble is s onically tun ed to it s inten de d f r eque nc y r ang e. Thu s each lter ha s i t s ow n [...]

13 Passe q Cut LF-LMF Cut MF-MHF Cut MHF-HF Boo st LF B. LMF-MHF Boo st HF 20k 19k5 18k 18k 17k 16k 15k 14k 13k 12k 11k 10k 8k6 8 k6 7k8 7k5 7k 6k 6k 5k 2 5k 5k 4k8 4k5 4k3 4k 3k9 3k5 3k3 2k9 2k8 2k5 2k 4 2k3 1k9 1 k9 1k8 1k8 1k6 1k3 1k2 1k 2 1k2 1k 900 780 720 600 580 550 460 400 380 320 270 240 220 180 180 140 120 95 80 60 54 42 40 30 26 18 15 10[...]

14 Passe q - '                                                          # P P T U  E # LF -LMF Cut a nd LF Boost The low cut fre quency r ange ex tends from 30 Hz to 1. 9 [...]

15 Passe q M HF -HF Cut and HF Boost Pa s se q’s high f req uenc y b and s hav e a dif fer ent l ayou t for the cut an d b oos t r ange s: Th e MHF -H F cut ba nd e xh ibi t s a (wide -b and ) shel vi ng char ac ter is ti c, w hile t he HF b oos t ba nd e x h i b i t s a v a r i a b l e Q , p e a k  l te r c h a r a c t e r i s t i c . A s s e[...]

16 Passe q In th e arena s of re cordin g and mi x ing on e can g ener all y dis ting ui sh bet we en t wo ma in goa l s in appl yin g EQ: T h e rs t is sou nd cor re c tio n, or so und de sig n thro ugh pr oce ssing of in di- v i d u al c h a n n e l s w h il e t h e s e c on d m a y b e i m p r o v i n g t h e ir s e p ar a t i o n o r p r e s[...]

17 Passe q First contr ol le vels, then appl y E Q Bad ly adju ste d l evel s of ten induc e u s to misu se EQ in misg ui ded ef for t s to cor re c t t hem . A s so on a s one ha s t he f eel ing th at he or sh e ne ed s more t hat 6 dB i n EQ ( bo os t), o ne sh ould i n v e s t i g a te t h o r o u g h l y w h e t h e r or n o t i n i t i a l l [...]

18 Passe q Cut ting f un damen tal levels Cut t ing fu ndam ent al fr equ enci es prov ide s for a per cei ved incr ea se in h ar mon ic s and i s the ref ore an ef f ec t i ve alte r nati ve to bo os ting h ar mon ic le vel s . Th is is a comm on pr ac t ice in Ro c k /P o p p r o d u c t i on s t h a t c an b e e f f e c t i v e i n a l l m u s i[...]

19 Passe q An over view of freq uenc ies a nd exa mpl es fo r pos sib le process in g ( H e r e w e p r o v i d e a p p r o x i m a t e v a l u e s w h i c h m ay e x p a n d t o a d ja c e n t a r e a s) 50 Hz – cut : Re duce s bo omin ess i n all low er in st r umen t s ( ba s se s, k ic k dr ums , toms) wh ose f unc t ion al so impl icit ly in[...]

20 Passe q Cl a s si c al i ns t r u me n t s a nd t he i r f r e qu en c ie s A s ym pho ny orc he st r a pre se nt s a kind of idea l par ad ig m of a balan ced , w ide -sp ec t r um instrum ental sound canvas. I t is there fore o nly sensi ble t o co nsid er its sound as an orienta - tio n poin t al so f or oth er mu sic al ge nre s —it wil l [...]

21 Passe q Fre qu en c y an d En e r g y In ge ner al , a f re quen c y pre sc rib e s a number of ev ent s in a tim e inte r v al . Th e pe r-seco nd c yc le of a w av e for m is gi ven in Her t z (Hz). Lower tones pro duce longe r waves and hig her, wa ves of shor ter leng th , and th e hig her t he f re quen c y, th e h igh er th e to ne. T he h[...]

22 Passe q F requenc y Filt ers A s a rule al mos t e ver yon e of u s ha s  rs t ma de an aquaint ance with fr eque nc y l ter ing thr oug h our lis tenin g to hom e ster eos . Such el eme nta r y k in ds of l ters a re simpl e ampl i- tud e- ba s ed l ters: W h en one t ur ns a b a ss con tr ol cl ock w is e, on e hear s a g ener al o[...]

23 Passe q Equalizer In our conte x t here , an EQ is in ef fe c t a n et wo rk of f re quen c y lter s whic h chang es it s out put charac ter istic s depen ding on f requen cies. T he common recording st udio con cept f or sound shap ing o r co r rec t ion is th e am pli tud e- ba s ed EQ. Bu t ow ing to t he la rge nu mbe r of l ter comb i[...]

24 Passe q A c t i ve EQ s Th e lte rs of a n ac ti ve n et w ork r equi re e x ter nal p owe r whi ch all ows f or an i nteg r ati on of a mp l i f y i ng e l e m e n t s t h a t a l l o w f o r b o t h b o o s t a n d c u t f u n c t i o n s . Ac ti ve EQs d om ina te t he mar k et , a nd p er h ap s a g oo d p ar t of th is i s du e to t he i[...]

Passe q Po wer Supply Th e p ower supply w a s ca ref ull y eng ine ere d to pr ov ide c lean an d con sis tent c ur rent t t t an imp or t ant p rere quisi te f or e xcel lent au dio. Buil t a roun d a tor oidal t r ansf or m er, the p owe r suppl y ge ner ates a min imal e lec t rom ag net ic  eld w ith no h um or me cha nic al no ise . Th e o[...]

26 Passe q Guarantee & P roduct R egistration All SP L pr oduc t s com e w ith a t wo -y ear m anuf a c ture r ’s gua ran tee ag ain st def ec t s in m ater ial or ass emb ly f rom the date of pur cha s e. T ub es have a g uar ante e of thr ee mont hs . End u ser s a re s uppo r te d in th e t wo -ye ar g uar an tee thro ugh th eir dis tr ib [...]

Copy Master: R ecall Settings - . '  °  . ) '  ) ' . '  °  . ) '  . ) '  °  ) '  - '  °  - . '                                            ?[...]

28 Passe q < Manual Passeq[...]