Sinfoni Tempo Grave User manual

GRAVE
AMPLIFIERS • OWNER’S GUIDE
Tempo

LINEA TEMPO GRAVE
PREFACE
INSTALLATION PROCEDURE
CONNECTION POWER SUPPLY
CONNECTION LOUDSPEAKERS
INPUTS
LIGHTS AND PROTECTIONS
03
05
06
07
11
12

OWNER’S MANUAL PREFACE
03
 Firstofall,wewouldliketocongratulatewithyouforyourchoiceofourSinfoniTempoamplifier.
Ifyouarereadingthisshortintroductioninsteadofmadlyflickacrossthepagesofthishandbooklooking
forfeaturesliketheweightednoiseortheT.I.M.,thenmaybewehavehitthetargettounveilalittlebitof
thephilosophyofourlaboratories.Infact,youwillnotfindthesefiguresamongthecharacteristicsofour
productsmainlybecauseitisourfirmconvictionthatitisimpossibletovaluesuchaproductonlyonthe
basisofplainnumbers.Itwouldbelikeguessingthetasteofadishreadingjustthelistofitsingredients.
Onlyafterasuitable“tasting”youwillrealizethestrikingsoundpropertiesofourproducts,andyouwill
appreciatetheirtransparency,theirmusicality,theirdepthandallotheraspectsthatprobably,asaSinfoni
purchaser,youalreadyknow.Trytodescribeitwithcoldtechnicalparameters,ifyoucan!
 Inordertogettheutmostfromourproducts,werecommendyoutouseonlyhigh-qualitycom-
ponentsandcables:withafewadjustmenteverySinfoniamplifierwillgiveyouunexpectedemotionsand
sensations.Wekindlyaskyoutofollowtheindicationsmentionedinthishandbook,andwewishyouto
enjoyMusicatbest.

PREFACE
Tempo
04

OWNER’S MANUAL INSTALLATION
05
 TheSinfonicaramplifiersaredesignedtoworkwitha12VDCpowersupply,howeverthevol-
tagecanrangefrombetween11Vand14.5V.PowerSupplycablesmustbeofasuitablegauge,keeping
inmindthatthenegativeonemustbeconnectedtothegroundinthenearestpointofthecarchassis,
whilethepositiveonemustcomedirectlyfromthebattery.Ifthedistancefromthebatterytotheapparatus
isquitelong,thenitwillbenecessarytousethickercables,inordertoavoidanyperformanceloss:we
suggestyourinstallertouseatleastgoodqualityAWG7OxygenFreeCoppercable.
 TheREMinput(remote)mustbeconnectedtotheremoteoutputofthesource,andtheFan
outputtoanexternalfanwithlowloads.Itcansupplyupto500mAat12V,turnsonwhenthetemperature
oftheunitexceeds50°Candturnsoffonlywhenthislowersunder40°Ceveniftheremotekeepsthe
amplifierOFF.

INSTALLATION POWER SUPPLY
06
+ 12 V TO FAN
SOURCE REMOTE
GROUND - CAR CHASSIS
BATTERY POSITIVE

INSTALLATION CONNECTING LOUDSPEAKERS
07
 Thestandardloadimpedancefittingtotheamplitudeseriesis4Ω,buttheseamplifiersare
fearlessofalowerimpedanceliketheonethatcanbeeasilyfoundinacar(threewaysystemsorhighly
reactiveloudspeakers).Connectinga2Ωloadisnotaproblem,infact,asitispossibletouseasimulta-
neousstereo-monoconfiguration,thenitisstillpossibletoconnecta4ΩSubwoofertoa4Ωsystemto
thebridgedoutput.Thiswoulddecreasetheoverallloadtoabout1,3Ωperchannel.Insuchacase,a
suitableventilationmustbeprovided,aswellasanadequatepowersupplycable,duetothestrongimpul-
sivecurrent,rangingbetween50Aand80A.Thefollowingimagesclearlyshowthepossibleconnections.

CONNECTING LOUDSPEAKERS STEREO CONNECTION
08

CONNECTING LOUDSPEAKERS MONO CONNECTION
09

CONNECTING LOUDSPEAKERS STEREO + MONO CONNECTION
10
LOW PASS

INSTALLATION INPUTS
11
 Theinputloadis48KΩ,anditssensitivityisadjustablefrom400mVpeak-peak(150mVRMS)
to8Vpeak-peak(2.8VRMS),thereforeitperfectlymatchesanysource,includingthosethatprovidea
4Vpreout(1.4VRMS).TheregulationisachievedrotatingtheinputRandLpotentiometerswithacommon
screwdriver.InordertoobtaintheBRIDGEDMONOoperationitisnecessarytouseaYcabletoreachthe
twoinputs,whileinthesimultaneousMONO-STEREOconnectiontheuseapassivelow-passfilterbefore
thesubwooferisnecessary.Thiswillshielditfromthehighandmediumfrequencies,thatarepresentin
stereophonicmode.

INSTALLATION LIGHTS AND PROTECTIONS
11
12
 TheLEDnearbythepowerconnectorshowsthepresenceofRemotesignal.Thethermal
protectionpreventstheamplifierfromexceeding82°C,incaseofover-heatingnormaloperationsmay
continueonlyafteratemperaturedecreaseof10°C.
 Internally,justbehindtheLED,youcanfindtwofuses(30Aeach)thatcanbeeasilyreached
disassemblingjusttheamplifier’send-cap.Inanycase,itsbreakistobeconsideredasanunlikelyevent,
dueonlytoaseriousfailure,possiblycausedbyanimproperuseoftheamplifier,orapowersurgeduring
connectiontothepowersource.

SPECIFICATIONS
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OPTIONS:BUILT IN ACTIVE CROSS - OVER MODULE
CONTINUOUSLY ADJUSTABLE FROM 40 HZ TO 200 HZ
LOW PASS 24 dB X OCTAVE MONO
POWERSUPPLY
STANDBYCURRENT
INPUTSENSIVITY
INPUTIMPEDANCE
OUTPUTPOWER: 4 Ω@ 12/13,8 V
2 Ω @ 12/13,8 V
MONO 4 Ω @ 12/13,8 V
MONO 2 Ω @ 12/13,8 V
FREQUENCYRESPONSE
SIGNAL/NOISERATIO
DIMENSIONS(W/H/D)
WEIGHT
 9-15VCC
<1,2A
0,4-8V
48KΩ
165/165WX2
295/315WX2
590/635WX1
775/925WX1
+/-1dBFROM10HZTO30KHZ
>90dB
434X40X187(MM)
3,8KG

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