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Madrigal Audio BPA 2 manual

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Table of contents for the manual

  • Page 1

    B P A 2 & B P A 3 P o w er Amplif iers[...]

  • Page 2

    2 C A UT ION RISK OF ELECTRIC SHOCK DO NOT OPEN CAUTION: TO REDUCE THE RISK OF ELECTRICAL SHOCK, DO NOT REMOVE COVER. NO USER-SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED PERSONNEL. WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE. The l i ght nin g fla s h w ith a rro w h ea d sy mbo[...]

  • Page 3

    3 I mport ant Saf e ty I nst ru c ti ons P l ea se r ea d all inst ru ct i ons a n d p re ca ut i o ns ca r efu ll y a n d c om p l et el y be f or e o per a t in g y our P roc eed po w er ampli fier . 1. AL W A Y S disc o nn ect y ou r ent ire sy ste m f r om t h e A C ma ins be f or e co nne ctin g or d isc onn ect ing a n y ca bl es , o r w he n[...]

  • Page 4

    4 F ro m all o f us at M a driga l A ud io La bor at ories , t h a n k you f or c h oosi n g t h is P rocee d power a mpl if ier . A g re at dea l of e ff ort went i nt o th e de si g n a nd c on st r uc t io n of th is pre c is io n devic e . Use d properl y , i t will g ive you ma n y years of en joymen t .[...]

  • Page 5

    5 T able of C ont en ts U npa cking and Pla cement ........................................................................ 6 U npackin g .......................................................................................................... 6 Plac eme n t ..........................................................................................[...]

  • Page 6

    6 U npac k i n g an d P lac em en t Un pac kin g Unpa ck y our Proceed ® B P A 2 o r B P A 3 po w er a m p lif ie r an d ke ep a ll pac k ing mat erials f or futu re tr ans port . S hip ment o f th e a mp lifi er w itho ut t h e o ri gi- na l pa ckin g mat eri a l is not recomm ended. Loc ate and remo v e the hea v y gau ge A C po w er c o rd , w [...]

  • Page 7

    7 O per ati n g V olt ag e The P roc eed B P A 2 a nd B P A 3 a re f a cto r y-se t f or 1 00V , 1 20V , 22 0V , 230 o r 2 40V A C ma ins o pe ra t i o n at e it he r 5 0 or 60Hz , a cc o rd in g to t he c ou nt r y f o r w hic h th e un it w as ma nu f a ctur ed . ( 2 30V on l y i n Europe a n Un io n c ou nt ries , in c om pl ia nc e with CE reg [...]

  • Page 8

    8 A Qu i c k St ar t W e recognize that many pe opl e are underst andab ly ea ger to b egin li steni ng to th eir ne w co m po ne nts , a nd t h a t re a din g th e ma nua l is oft en d o ne (if a t a ll) a t a l a t er t ime—pe r h a ps w hil e list enin g t o mus i c thr ou gh t he n ew p rodu ct itse lf . W e stron gl y recom mend that y ou re[...]

  • Page 9

    9 7 SL O WL Y RA ISE TH E V OL UM E O N Y O U R PR E A M PLI F I ER C o n gr a tu l a ti o ns! Y ou s ho u l d n o w be a bl e to e njo y y our f a v orit e mus ic w hil e re a din g th e r est o f th is manu al . ( P leas e , d o re ad t he r e st of th is man ua l . I t c o nt ai ns mu c h va lua ble i n f ormat io n abou t your n ew a mpl ifier [...]

  • Page 10

    10 Spec ial D esi g n F eatu r es C o n gr a tu l a t io ns o n y our p ur ch ase o f a P roc eed B P A! W hil e y o ur n e w a mp lifi er is st ra i ghtf or w a rd in its u se , it inc lu d es se v er a l de si gn f ea tur es w hic h are r e sp o nsi bl e f or it s ou tsta n din g perf orma nc e . A f e w of t he se a r e gi v en be lo w . Mu ltip[...]

  • Page 11

    11 F r on t P an e l 1P O W E R B U T T O N P re s sin g th e l a t c hin g po w er b utt o n co nnect s th e amp lifi er t o the A C mains , turn in g it on . P o w er c o nsu mpt io n w h en fu ll y o n a nd a t idl e is a p p r o xi- ma te l y 1 40 w att s f or t he B P A 2 a n d 2 1 0 w att s f or t he B P A 3 . At y ou r o pt io n, y ou ma y a[...]

  • Page 12

    12 be us ed . Wh en th e indi cat or l i g ht is g l o w in g red , th e u n it is in stan db y (see 1 a bo v e). If th e in di ca to r li g ht is co mp l et e l y off , t he a mp lif ie r is n ot re- c ei vin g po w er . Ch ec k y our A C co nn ect io ns a nd t h e re ar -pa ne l A C fus e .[...]

  • Page 13

    13 R ear P an e l Caution! T urn th e v olum e on y our pr eampl ifier al l the w ay do wn be fore attempting to connect an ything to y our Pr oceed B P A 2 or BP A 3 . 1 A C MA I NS R E C E PT A CLE C o nne ct th e A C po w er c ord (in cl u ded in t h e a cc es so r y pa c k) to t h e I .E .C .- sta n da r d A C rec epta cl e o n th e rea r pa n [...]

  • Page 14

    14 Re mo t e tu rn-on tip po lari ty Y ou r P roc eed d ea le r ca n hel p y ou tak e a d v a nta ge o f t he se d es i gn f eatu re s t o maximi z e y ou r sy ste m ’ s v ers a til ity . 3 A C MA I NS F US E O ne f ast-b l o w fuse is l oca ted o n th e re ar p a ne l o f th e B P A . If it s ho u l d be- c om e ne ce ss ar y , re p l a ce t he [...]

  • Page 15

    15 5 BA LAN C E D AU DI O IN PU TS A cc epts ri g ht-ch ann e l an d l e ft-ch ann e l si gna ls f r om p re am p lif ie rs w it h ba l- a nc ed out pu ts v ia h i g h qu a lity XL R co nn ect ors . The p in as si gnme nts o f th ese XLR -typ e f ema l e in pu t c onn ect ors a re: P in 1: Si gna l gr ou nd P in 2: S i gna l + (no n-in v er tin g) [...]

  • Page 16

    16 Car e & Mai n t en an c e T o rem o v e du st f r om t h e ca bin et of y ou r am p lif i er , use a f ea th er du st er o r a l int- f r ee so ft c l oth . T o re m o v e d ir t an d fin gerp rints , w e re c omm en d is op ro py l al c o ho l and a soft cloth. Dampe n the cloth with alco hol fir st and then lig ht ly clea n the su rf a c e[...]

  • Page 17

    17 U .S . an d Can adian W arr anty 90-Day Lim it ed W arran ty This P roc eed ® p rodu ct is w arra nted t o be f ree f ro m de fe ct s in mat eria l a nd w or k- man ship under norm al use for a pe rio d of ni net y ( 9 0 ) d a ys fr om the date o f pur- chas e . T o extend the war ranty of this Proceed product , r eturn t he w arr a nty re gist[...]

  • Page 18

    18 Ob t aining S e r vic e W e t ak e g re at prid e i n o ur deale rs. Exp er i e nce , de d ication, and i n teg rity mak e th ese p r of es si o na ls id ea ll y su ited t o as sis t w ith o ur c us t o mer s ’ se r vi ce n eeds . If y ou r P roc eed co m po ne nt mus t be servi c ed , p l ease c o nta ct y o ur d ea l er . Y our de a l er w i[...]

  • Page 19

    19 Spec ific ati ons T he c orrelat io n between pu bl is h ed spec ific at io ns an d perfo rman c e is u nr el iable . A l ist of n um bers reveal s virt uall y not h in g . All t ec h ni cal me as u rem ent s m ust be su b- je c t t o qual itat ive as we ll as qua nti ta tive i nt er pret at i o n . M easu remen ts o f th e Pro- c eed B P A yiel[...]

  • Page 20

    20 D im ensi ons: B P A 2 & B P A 3 ( Not e th at th e BP A 2 an d th e BP A 3 h ave th e sam e ext ernal d im ens io ns . T h e BP A 3 is s h own bel ow . ) triple monaural amplifier HPA power 0.695" 1.77 cm 5.25" 13.3 cm 17 .46" 44.35 cm 1.40" 3.56 cm 19.55" 49.66 cm 15.47" 39.29 cm 17 .26" 43.84 cm 16.87&qu[...]

  • Page 21

    21 Ra ck Mo u n ti ng If y ou n eed o r p ref er t o ra ck m ou nt y ou r am p lif i er , c o nta ct y ou r P r oce ed dea le r a bou t th e opt i o nal r a ck m ou nt kit. This p urp ose-d es i gn ed asse mb l y pr o v ides the ne eded v ent il at io n f or t h e h eat s ink “ chimn e y s ” of t he a m p lifi er as w ell a s th e su p- po rt r[...]

  • Page 22

    630365 © 5/1999 Madrigal Audio Laboratories, Inc. All rights reserved. Printed in U.S.A. m Madrigal Audio Laboratories, Inc. 2081 South Main Street, P.O. Box 781 Middletown, Connecticut 06457 USA Telephone: (860) 346-0896 Fax: (860) 346-1540 http://www.madrigal.com/ PR O C E E D R is a registered trademark of Madrigal Audio Laboratories, Inc. a Ha[...]