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Perreaux 750 manual

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Table of contents for the manual

  • Page 1

    Prisma 750 Monoblock Power Amplifier Owners Manual[...]

  • Page 2

    2 P e rre a u x Indus t ri e s L i m i t e d m a ke s no w a rra nt y for t he us e of i t s p rod uc t s, o t her t han t hose e x p re s s l y c ont a i ne d i n t he w a rra nt y de t ai l e d he re i n. T he Com p any ass ume s no re s p ons i bi l i t y for a ny e rrors w hi c h m a y a pp e a r i n t hi s doc um e nt , re s e rve s t he ri g [...]

  • Page 3

    3 i i i i I n t roduci n g the Perrea ux 750 Pow er A m pli fi e r Cong ra t ul a t i ons on y our P e rre a ux 7 50 p urcha s e . T o rea li se t he full p o t ent ia l of y our uni t y ou ne e d t o a pp re c i a t e a l l a s p e c t s of i t s o p era t ion. Be fore i ns t a l l i n g t he 750 i nt o y our s y s t em , rea d t he e nt ire m anu[...]

  • Page 4

    4 ii ii ii ii I m portan t Safe t y I n st ru cti on s Note : A l l s afety an d ope r a ti on i nstruc ti on s shou l d be re ad c a r e f ul l y be f ore t h e 75 0 i s ope ra te d. Ke e p th e O wne rs M an ua l i n a saf e place f or f utur e re f e r e n c e .  T he 750 s houl d not be us e d ne a r w a t e r, for e x a m p l e ne a r a b a[...]

  • Page 5

    5  D O N O T a t t e m pt t o re p a i r t he 750. In t he e ve nt of a p roble m , p le a se c ont a c t y o ur P e rre a ux d e a l e r.  D O N O T o p e ra t e t hi s p roduc t i n a n e x p l os i ve a t m os p he re . C au ti on! Th e 750 is a n e x tr e m e l y high pow e re d, c onv ect ion c ooled a m pl if i e r . Th e f i nn e d ou [...]

  • Page 6

    6 iii iii iii iii T able of Co n t en ts i i i i I n t r o d u ci n g t h e Pe r r e a u x 7 5 0 P o w e r Am p li fi er ..... ... ... ... ... ... ... .... ... ... ... ... ... ... .... ... ... .3 i i i i i i i i I m p o rtan t Sa fet y I n st r u c t i o ns ... ... ... ... ... .... .. ... ... ... ... .... ... ... ... ... ... ... .... ... ... ... ..[...]

  • Page 7

    7 1 1 1 1 Un pack i ng an d Placem en t T he 750 i s p a c ka g e d for m a x i m u m p rot e c t i on. P l e a s e c a re ful l y re a d t he i ns t ruc t i ons be l ow be fore p roc e e di ng t o unp a c k t he uni t . Be e x t re m el y ca re ful . Un p ack i n g Pr o ce d u r e  Ins p e c t bo t h e nds of t he c a rdboa rd bo x a nd op e n [...]

  • Page 8

    8 V e n ti l a t io n R e q u i r e m e n t s T he 750 i s a hi g h-p ow e re d a m p l i fi e r. F or o pt im al p erform anc e , t he unit M U S T re c e i v e a de qu a t e ve nt i l a t ion.  P l e a s e do not i ns t a l l i n a s e a l e d c a bi ne t .  P l e a s e do not s t a c k p roduc t s di re c t l y on t o p o f t he uni t . ?[...]

  • Page 9

    9 2 2 2 2 I n st an t I ns ta ll If y ou a re l i k e us , t he first t hing y ou w i l l w a nt t o do is t o p la y y our favouri t e p i e c e of m us i c t hroug h y our new 750. T he foll ow ing inst ruct ions are w rit t e n t o e na bl e y ou t o ac hi e ve t his as quic kly as p o s s ibl e. T hese are not com p rehe ns i ve i ns t ruc t i [...]

  • Page 10

    10 St a r t yo u r s o u r ce c o mp o n e n t S w i t c h on t he s ourc e c om p one nt bot h at t he wal l and on it s fron t p ane l. Ensure y ou ha ve s om e s ourc e m a t e ri a l i ns e rt e d a nd p re s s p l a y . I n c r e ase t h e v ol u m e S l ow l y i nc re a s e t he p re a m p l i f i e r vo l um e c ont rol t o a c hi e ve a c o[...]

  • Page 11

    11 3 3 3 3 F ron t Pane l F u n cti on s Po w e r I nd icat o r T he i ndi c a t or l i g ht i s an L E D t ha t s how s t he st a t us of y our 750 monobl oc k p ow e r a m p l i fi e r. O f f T hi s i ndi c a t e s t hat t he a m p li fi e r is ei t her not conne ct e d t o t he ma ins s upp l y , or t he uni t i s i n s t a ndb y . T he u ni t n[...]

  • Page 12

    12 4 4 4 4 R ear Pan e l F un ctio n s C au ti on! P l ea s e m a ke a l l c h a ng es a t mini m um v olum e setti ng . O n l y i ncre a se t h e vol um e a f ter the c on ne ct i on s h a ve b ee n ma de . Ser ial N u m b er T he s e ri a l nu m be r is unique t o y our 750. P le ase rec o rd t hi s num be r a nd s t ore i t i n a s a fe p la c e[...]

  • Page 13

    13 F use Rati n g T he fus e ra t i ng di s p l a y ed he re , re fe rs t o t he ra t i ng of t he m a i ns i n le t fu s e . F or m ore i nform a t i o n on fus e ra t i n g s , p le a se re f er t o Chap t er 13 “ S p e c i fi c a t i ons ” . C au ti on! Ne ve r r e place th e f uses wi th a ny ot h e r ra t i ng s othe r th an the on e speci[...]

  • Page 14

    14 T he p l ug m us t fol l ow t he s p e c i fi c a t i ons a s p er t he f ol l ow i ng di a g r a m : Sl ave Tr ig g e r O u t p u t A p a ra l l e l s l a ve t ri gg e r out p ut i s p rovi de d t o s w i t c h on or off an y conne c t ed p e ri p he ra l s t o t he 750. T he s la ve t rig ger out p u t i s de s i g ne d t o a c c e p t a 3.5mm[...]

  • Page 15

    15 Re fe r t o Cha pt e r 13 “ S p e c i fi c a t i ons ” , for de t a i l on i np ut s ensit ivi ty a nd i m p e da nc e . Note : P l ea s e set the i nput c on f i gu ra t i on swi t c h to t h e a ppr opr i a t e setti ng . T he p i n a s s i g nm e nt s of t he ba l a nc e d X L R c onn e c t ors a re a s fol l ow s : Pin 1 : S ig n al gro [...]

  • Page 16

    16 5 5 5 5 Spe ci al Desi g n Phi losophi es P e rre a u x ha s b e e n d esi g nin g and m anufa ct urin g on ly t he hi g h e s t qua l i t y audi o c om p one nt r y for m ore t ha n a qua rt e r of a c e nt ury . T ec hnol o g y has cont i nue d t o e vol ve ra p i dl y ove r t ha t t im e a nd our know l e dg e a nd a p p l i c a t i on of de [...]

  • Page 17

    17 “ F orm a nd fu nc t i on” are bot h t oug h ma s t ers. T hat i s w h y our a m p l i fi e r he a t s i nks a re not hidde n, but inst ea d fea t ure p romi nent l y in al l our desi g ns . W e m a ke no e x cuses for p roduci ng s ome of t he m os t di s t i nc t i ve hi g h- e nd a udi o p roduc t s on t he p la ne t . We le t “ form an[...]

  • Page 18

    18 6 6 6 6 Spe ci al Desi g n F e at ure s R u g g e d Bu i ld Qu a l it y M e c ha ni c a l s t re ng t h ha s bee n a ha l l m a rk of Perre a u x p roduct s s inc e t he c om p a ny fi rs t s t a rt e d p ro duc t i on ba c k i n 1974. T he c on c e p t be hi nd t he p hys i c a l de s i g n a nd c ons t ruc t i on i s t ha t ea c h s t ruct ura[...]

  • Page 19

    19 DC O f f s et P rote c t i on T h i s s y s t e m s e ns e s i f a ny di re c t c urre nt (D C) is p resen t at t he 750 ou t p ut t e rm i na l s and disconn ec t s t he outp u t t o a voi d p o t e n t ia l s p ea ker dam a g e. D C m a y be p re s e nt due t o anc i l l a ry equi p me n t fe e di ng DC int o t he i n p u t or an a m p l i fi [...]

  • Page 20

    20 7 7 7 7 M axim isi ng Sy st em Poten ti al I n t e r con n e c t s an d Sp e a k e r Ca b l e s A n oft e n- i g nore d a re a i n hi g h fi de l i t y s y s t e m s i s t he c a bl i ng c onne c t i n g t he va ri ous c om p one nt s . Int e rc onne c t l e a ds s houl d b e hi g h qua l i t y ca bl e wit h s u bs t a n t i a l t erm i nat i on[...]

  • Page 21

    21 T he re j e c t i on rat io ac hi e ve d is descri be d in mi nus dB. T he C M RR of a s ys t e m fol l ow s t he formul a 20Lo g ( V output / V input ). I n ot her w ords a CM RR of – 40dB m e a ns t ha t al l g arba ge ent eri n g t he unit w il l be ma d e 100 t i m e s s m a l l e r. T he p i e c e of e qui p m e nt w i t h p oores t C M R[...]

  • Page 22

    22 8 8 8 8 T he Pow er M OSF E T T oda y w i t h t he vast num ber of t e c hni c a l ac h ie ve me nt s occ ur ri n g around t he w orl d, m a ny di s c ove r i e s a r e ove rs ha dow e d or obs cur e d by s ome t hat ma y a pp e a r m ore i m p ort a nt t o t he g e ne ra l m edi a . O ne such d iscove ry of im p ort anc e , t o t he a udi op hi[...]

  • Page 23

    23 t he i r m uc h s m a l l e r s i z e , no fi l a m e nt s a nd g re a t e r re l i abi l i t y w i t h r e duc e d vul ne ra bi l i t y t o p h ys ic a l d a m a g e. Au d io Ap pl i ca t i o n s W he n us e d i n a n a udi o p o w e r am p li fi e r, t he adva nt ag es of t he p ow er MO S FET ove r t he p ow e r t ra ns i s t or a re m uc h m[...]

  • Page 24

    24 H ig h Fr e q u e n c y R e sp o n s e P roba bl y , from t he s oni c qua l i t y p oin t of vi e w, t he m ost im p ort ant im p rovem e nt i s t he p ow e r M O S F E T s va s t l y s u p e ri or hi g h fr e que nc y re s p ons e . A l a r g e p ro p or t i on o f t he p o w er t ransis t ors us ed in mode r n hi-fi am p li fi e rs s t a rt t[...]

  • Page 25

    25 9 9 9 9 Care an d M ai n te n an c e T he 7 50 has bee n desig ne d t o p rovide ma ny y ea rs of t rouble free enj oy me nt . It ’s i m p ort a n t t o kee p t he ex t eri or of t he unit cl ea n and t o p eri odic al l y ensure t ha t t he a i r-c ool i n g g r il ls re ma i n cl e ar from obs t ruc t ion. Note : P l ea s e swi t c h the uni[...]

  • Page 26

    26 1 0 1 0 1 0 1 0 W arran ty I n form at i on an d Obtain i n g Servic e 1 Ye ar L i m it e d W a r r a n t y T he P e rre a ux 750 i s w a rra nt e d t o be fre e from de f e c t s in m a t eri a l a nd w orkm a ns hi p unde r norm a l us e t o t he orig i n al p urcha ser for a p eri od of 1- y e a r (365) da y s from t he da t e of p urc ha s e[...]

  • Page 27

    27 1 1 1 1 1 1 1 1 E x t e nde d W arran t y R eg i st rat i on Form P l e a s e c om p l e t e t his form and ei t her fax , ma il or s ca n and e- m a i l it t o P erre a ux Indus t ri e s L t d. F a x : +64 3 489 2976 M a i l : P e rre a u x Indus t ri e s L t d P O Box 305 M o s g i e l D une di n 9053 N e w Z e a l a nd E -m a i l : i nfo@p er[...]

  • Page 28

    28 1 2 1 2 1 2 1 2 F au ltf i n din g Y our Sy st em Ca u s e a n d E li min ati o n o f H u m H um i s a p a rt i c ul a rl y annoy ing form of noise in any hig h fide l it y s y s t e m a nd a t s om e t i m e ha s be e n e x p eri e nc e d by m a ny of u s . H um m a y re s ul t from a num ber of di ffere nt s i t u a t i ons and t o ma ke m a t[...]

  • Page 29

    29  W he n a p i e c e of e qui p m e nt i s s upp l i e d w i t h a t hre e p in m ai ns/l i n e supp ly l e a d a l l t hre e p ins m us t be c onne c t e d i n t he c orre c t fa shion - s e e y o ur de a l e r i f i n doubt .  Che c k a l l i nt e rc onne c t i ng si g n al l e a ds for g ood conne c t ions, b ot h i nt erna l c onne c t [...]

  • Page 30

    30 S tep 1 – Loudspe a ker s P RE A M P LIFIE R 7 50 A B 750 Cha nge t he louds p ea ke r le a ds from one louds p ea ker t o t he ot he r. If t he faul t re m a i ns i n l ouds p e a ke r ‘A ’, t he n l ouds p e a ke r ‘A ’ i s a t fa ul t , g o no furt he r. If t he fa ul t now app ea rs in louds p ea ker ‘B’ t hen t he p roble m li[...]

  • Page 31

    31 If t he fa ul t s t a ys i n louds p ea ke r ‘A ’ , t hen it is p robabl e t hat t he faul t ma y ex i s t w i t hi n t he a m p li fi e r. C au ti on: C ha ng i ng of an y c on ne c t or s must b e c a rr ied out at a mi n i m u m v olume setti ng . O nly i nc re ase the vol um e a f ter t he c on ne c ti ons h a v e b ee n c h a ng ed. S t[...]

  • Page 32

    32 Fa u lt fi nd ing Flo w c h ar t S w a p l oudsp ea ker c onn e c t i o ns F a ul t i n l ouds pe a ke r A F a ul t i n l ouds pe a ke r A ? S w a p a m pl i fi e r out put s Re s t ore spe a ke r c a bl e s t o or i gi na l c onne c t i ons F a ul t i n l ouds pe a ke r B? S w a p a m pl i fi e r s ourc e i npu t c ha nne l s L ouds pe a ke r A[...]

  • Page 33

    33 1 3 1 3 1 3 1 3 Spe ci fi catio n s T he 750 s p e c i fi c a t i ons a re de t a i l e d i n br ie f and t hen subs eque nt l y in m ore de t ai l . In t he de t a i l e d ve rsion, we a t t e m pt t o ex p la in t he sig ni f ic an ce of e a c h s p e c i fi c a t i on. T he c orre l a t i on be t w e e n p ubl i s he d s p e c i fi c a t i on[...]

  • Page 34

    34 P owe r C on s um pt i on Idl e ................................................................................................................... 65W M a x i m um .................................................................................................... 1400W (a t 4 Ω r a t ed o u t p u t ) Ma i ns Inpu t Vol tag e 100V , 110V , 12[...]

  • Page 35

    35 T he a m ount of a m p l i fi c a t i on t he am p li fi e r i s a s s e rt i ng on t he i np u t sig na l . G ai n c a n be c a l c u l a t e d by divi di n g t he ra t ed out p u t b y t he i np u t s e ns i t i vi t y . Dy n a m ic He a d r o o m .................................................................................> 1.1 d B T h[...]

  • Page 36

    36 1 4 1 4 1 4 1 4 Phy sic al Di m en si on s[...]

  • Page 37

    37 1 5 1 5 1 5 1 5 Cont act Deta i ls F or m ore i nform a t i on p l e a s e c ont a c t y our P e rre a ux d e a l e r, or c ont a c t : P e rre a u x Indus t ri e s L t d P O Box 305 M o s g i e l D une di n 9053 N e w Z e a l a nd P h: +64 3 489 2975 F a x : +64 3 489 2976 E -m a i l : i nfo@p erre a u x . com Int e rne t : w w w . p e rre a ux[...]

  • Page 38

    38 Ins ta ll a tio n N o te s[...]