Plinius AudioメーカーSA-103の使用説明書/サービス説明書
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2 CONG RATULATIO NS on your d ecision to become the pr oud owner of this Plinius SA- 103 Po wer Am plifier. This manual has been prepared to hel p you und er stand the ope r ation of your amplifier, and to provide inf or mation abo ut its desi gn and t he var iety o f w ays it ma y be u sed.
3 DESI GN PHILOS OPHY Fro m a dist ance yo u can see th at the design of t he Pliniu s pro ducts is mor e than an appl ied st yli ng exercise to the front panel. We have star ted from t he ground up to produce a casing for our electronics that is un rival l ed in it s physic al st ren gth an d visual si mplic it y.
4 C ONTENTS Int rod uct ion .................................................................................................................. .................. Page 3 Prec aut ion s ...................................................................
5 P RECAUT IONS Please t ake spec ial not e of th e foll owing precaut io ns before o perat ing your new amplif ier: • The P linius SA-103 P ower Ampli fier ca n be operate d in mon o mode delive ring u p to 460 wat ts into 8 ohms . Thi s amp lifier i s als o cap able of a very larg e pe ak curren t de live ry.
6 A MPLIF IER F EAT URES – F RONT P ANE L F RON T P AN EL L AYOUT S HOWING M UTE A ND B IAS S WI TCHES MUT E S WI TCH It is not rec omm end ed p ractic e to inte rfe re wi th the i np ut ca bles while the a mplif ier is switc hed on and conn ected to the loud spe ake rs, so a M ute bu tton i s fitte d to in terr upt the inp ut s ign al.
7 CLA SS A: Th is positi on provides Class A bias to th e o utput stage ther efore ensur ing the optimum pe rformanc e of th e am pli fier d uring all li steni ng ev en ts . Cla ss A a mpli fiers ru n hot ter th an Cla ss AB amplifiers, hence our specially designed and distinctive heat sinks.
8 Z258 RCA STE REO RCA BRIDG ED MONO X LR BALANCED MONO X L R S T ER EO PUSH PUSH C A UTIO N RISK OF ELEC TRIC SHO CK DO NO T OPEN A MPLIF IER F EATU RES – R EAR P ANEL This panel incorporates all the te rminal s for connecting the input signa l s from you r preamplifier, and out put to t he loudspeaker s, and m ains suppl y.
9 AMPLIFIER CONFIGURA TION SELECTOR REFER T O OWNERS M A NUAL F OR USAGE INSTR U CTIONS RC A ST ER EO RCA BRI DGED MONO XLR BALANCED MONO XL R S TER EO A LL MONO /BRI DGE OPTIONS USE RI GHT INPU T A N.
10 The ACS s witch opt ions a re: RCA S TEREO : Thi s opti on provi des a stereo outp ut via b oth lef t and right ou tput cha nnels from a stere o signal co nnec ted t o bo th left and r ight input RCA in put s.
11 O UTP UT TER MIN ALS - B RIDGE D/ MON O In br idged/ mono modes, t he l oudspeaker s ut ili se onl y th e posit ive (+) ou tput s of you r Pl inius SA -103 .
12 I NSTALLAT ION AND O PERATIO N PL AC EMENT AN D V ENT ILAT ION Your Pl in ius SA-103 is designed to operate at a moder a tely high temper ature, even more so when used in Class A . The i deal locat i on i s on a rigid st and or flo o r mo unted away fr om di r ect co ntact wit h any temper atur e sensitive mat erials or deep pil e carpets.
13 RCA S TER EO RCA BRIDGED MONO XLR BALANCED MONO XLR ST EREO PUSH PUSH I NP UT /O UTP UT C ONNECTION R EAR P AN EL S HO WING L OC ATION O F I NPUT /O UTP UT T ERMINAL S It is important that you conn.
14 RCA ST EREO Conn ect yo ur p ream plifi er or i npu t sig nal to the tw o RC A inp uts a t the top of the amp lifie r ba ck p ane l. Make sure yo u co nnect the r ed coded cabl e to the re d R IGHT RC A input an d the black (or w hite) cabl e to the bl ack L EFT RCA input.
15 XLR BALA NCED MONO As with RCA Bridg ed Mono, this option configu res your amplifier to drive one loud speaker, but from one balanc ed lin e input co nnected t o the RIGHT XLR In put. In bal anced mo no mo de the onl y input made to your preamplif ier is to the RIGHT channel XLR input.
16 P HAS ING ( OR PO LAR I TY) It is important to achieve go od ster e o imaging in your l istening room. By observing the wi r ing instructions above, each Power Amplifier/loudspeaker comb inatio n should be in phase.
1 7 SA -103 F EAT URES ERR O R DETECT IO N The Plinius SA-103 Po wer Ampl if ier has in-built error detect ion. This will func t ion unde r the fo llowing conditions: • When t he amplifier is overdr.
18 LED BRI GHT NESS C O NT RO L Your P linius SA-103 h as a n intern al LED brig htnes s cont rol tha t will a djus t all thre e fron t pane l LED’ s.
19 L OUDSPEAKER S ELECT ION Your P linius SA-103 P ower Amp lifi er is d esi gned for use with h igh fi delity louds pea kers . It sh ould not b e used to operat e any ot her t ype of appliance o r equipment . Choice of loudsp eak ers is one of pers on al ta ste, provid ing the ch ose n loud spe ake rs are s uitab le for us e with your amplifier .
20 W HY C LASS A I S B ETTER Class A has al ways been re garded as th e per fec t o perating mo de fo r audio amplif iers. Man y leading amplif ier designer s and manuf act urers worl d wide recognise t hat a well designed Cl ass A c ircuit has inh erently lowe r disto rti on tha n any other d esig n.
21 S PEC IFICATIO NS 125-W ATTS RMS PER CH ANNEL INTO 8 OHMS. BOTH CHANNELS DRIVEN FROM 20Hz TO 20kHz. B RIDGE D /B ALANCED M ONO O UTP UT : 460 Watts RMS 2 0Hz to 20kH z int o 8 ohms . F REQUE NCY R ESPONSE : 20Hz to 20kH z ± 0 .2dB . -3 dB at 5Hz and - 3dB at 7 0kHz .
22 I NDEX ACS (Ampli fier C onfi gurat ion Sel ecto r) ........................................................................................ P age 9 Bal anced Sign al .................................................................................
23 C ONTA CT D ET AIL S Al l o peration al, tech nical and descr ipt ive mat erial publ ished h ere i s subject to change at any t ime wit hout notice. For further product information or queries, please co ntact us at the address below. PL INIUS pr oduc ts ar e design ed and manuf act ur ed by: Plinius Audio Lt d.
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