Perreaux 750 - Manuals

5 DO NOT att empt t o rep air t he 750. In t he event of a p roblem, p lease cont act y our Perreaux d eal er. DO NOT op erat e t his p roduct in an exp losive at mosp here. Caution! The 750 is a n extr emely high pow ered, conv ection cooled a mplifier. The finned outer he at sinks may b ecome v er...

6 iii iii iii iii Table of Contents iiii Introducing the Perreaux 750 Power Amplifier ........................................................3 ii ii ii ii Important Safety Instructions ........................................................................................4 iii iii iii iii Table of...

7 1 1 1 1 Unpacking and Placement T he 750 is p ackaged for m a ximu m p rot ect ion. Please carefully read t he inst ruct ions below before p roceeding t o unp ack t he unit . Be ext rem ely careful. Unpacking Procedure Insp ect bot h ends of t he cardboard bo x and op en at t he end wit hout t he ...

9 2 2 2 2 Instant Install If y ou are lik e us, t he first t hing y ou will want t o do is t o p lay y our favourit e p iece of music t hrough y our new 750. T he following inst ruct ions are writt en t o enable y ou t o achieve t his as quickly as p ossible. T hese are not comp rehensive inst ruct ...

11 3 3 3 3 Front Panel Functions Power Indicator T he indicat or li ght is an LED t hat shows t he st at us of y our 750 monoblock p ower amp lifier. Off T his indicat es t hat t he amp lifier is eit her not connect ed t o t he mains supp ly , or t he unit is in st andby . T he unit not being conne ...

12 4 4 4 4 Rear Panel Functions Caution! Please make all changes at minimum volum e setting. Only increase th e volume after the con nections have b een made. Serial Number T he serial number is unique t o y our 750. Please record t his number and st ore it in a safe p lace. For any service relat ed...

16 5 5 5 5 Special Design Philosophies Perreau x has b een d esi gnin g and m anufact urin g on ly t he high est qualit y audio comp onent ry for more t han a quart er of a cent ury . T echnolo gy has cont inued t o evolve rap idly over t hat t ime and our knowledge and ap p licat ion of design, mat...

19 DC Offset Protection T his sy st em senses if any direct current (DC) is p resent at t he 750 outp ut t erminals and disconn ect s t he outp ut t o avoid p ot ent ial sp eaker dama ge. DC may be p resent due t o ancillary equip ment feeding DC int o t he inp ut or an amp lifier fau lt . Short-Cir...

20 7 7 7 7 Maximising System Potential Interconnects and Speaker Cables An oft en-ignored area in hi gh fidel it y sy st ems is t he cabling connect in g t he various comp onent s. Int erconnect le ads should b e hi gh qual it y cable wit h subst ant ial t erminat ions. Gold p lat e is inherent ly r...

22 8 8 8 8 The Power MOSFET T oday wit h t he vast number of t echni cal ach ieve ment s occurrin g around t he world, many discover ies ar e overshadowed or obscur ed by some t hat may app ear more i mp ort ant t o t he genera l m edia. One such d iscovery of imp ort ance, t o t he audiop hile at l...

23 t heir much smal ler siz e, no fi lament s and gre at er reli abil it y wit h reduced vulnerabi lit y t o p hysical dam a ge. Audio Applications When used in an audio p ower amp lifier, t he advant ages of t he p ower MOSFET over t he p ower t ransist or are much more difficult t o describe and w...

25 9 9 9 9 Care and Maintenance T he 750 has been designed t o p rovide many y ears of t rouble free enjoy ment . It ’s imp ort ant t o keep t he ext erior of t he unit clean and t o p eriodically ensure t hat t he air-coolin g gr ills re main cle ar from obst ruct ion. Note: Please switch the unit ...

27 11 11 11 11 Extended Warranty Registration Form Please comp let e t his form and eit her fax, mail or scan and e-mai l it t o Perreaux Indust ries Lt d. Fax: +64 3 489 2976 M ail: Perreau x Indust ries Lt d PO Box 305 M osgiel Dunedin 9053 New Z ealand E-mai l: info@p erreaux. com Alt ernat ively...

28 12 12 12 12 Faultfinding Your System Cause and Elimination of Hum Hum is a p art icularly annoy ing form of noise in any high fidel it y sy st em and at some t ime has been e xp erienced by many of us. Hum may result from a number of different sit uat ions and t o make mat t ers worse may be caus...

30 Step 1 – Loudspeakers P RE A MP LIFIER 750 A B 750 Change t he loudsp eaker leads from one loudsp eaker t o t he ot her. If t he fault remains in loudsp eaker ‘A’, t hen loudsp eaker ‘A’ is at fault , go no furt her. If t he fault now app ears in loudsp eaker ‘B’ t hen t he p roblem lies furt her...

33 13 13 13 13 Specifications T he 750 sp ecificat ions are det ai led in br ief and t hen subsequent ly in more det ail. In t he det ailed version, we at t empt t o exp lain t he signif ican ce of each sp ecificat ion. T he correlat ion bet ween p ublished sp ecificat ions and sonic qualit y can be...

34 Power Consumption Idle ................................................................................................................... 65WM aximum .................................................................................................... 1400W (a t 4Ω r at ed o ut pu t ) Mains Input...

35 T he amount of a mp lificat ion t he amp lifi er is assert ing on t he inp ut signal. Gain can be c alcu lat ed by dividin g t he rat ed out p ut by t he inp ut sensit ivity . Dynamic Headroom .................................................................................>1.1dB T his indicat...

37 15 15 15 15 Contact Details For more informat ion p lease cont act y our Perreaux d eal er, or cont act : Perreau x Indust ries Lt d PO Box 305 M osgiel Dunedin 9053 New Z ealand Ph: +64 3 489 2975 Fax: +64 3 489 2976 E-mai l: info@p erreau x. com Int ernet : www.p erreaux.com