Audionet AMP IV Bedienungsanleitung

audionet

amP Iv

4ChannelAmplifier

Owner'sManual

Congratulations!

Forthoseinneedofevenmore amplification wehaveengineeredthe

AMPIV.TheAMPIVisourpower amplifier formultichannelapplica-

tions and supplementsourmono and stereoamplifiers. Withitsfour

channelsmodern6.1 homecinemaiseasilyattainableaswell asother

multichannelapplications like,forexample,bi-amping.Withanintelli-

gentcircuit layoutand highpower output,theAMPIVplayssovereign

and slender.Thesound qualityisoutstanding.TheAMPIVdoesnotget

workedup and playshighlyemotionally.Likeall ourmono and stereo

power amplifierswehaverealizedAudionet'sultra-linear amplifier con-

ceptconsequentlywithintheAMPIV.Itscircuitsare designedforthe

lowestdistortion and highestspeedand stability.Theconstruction makes

thefourchannelsoperateindependentlyasmuchaspossible.Aclever

protection circuit ensurestheeasiesthandling,highoperation safety,and

detectsthecorrectmains phase.Theinputsare equippedwithgold-

plated, Teflon-insulatedsockets, and theoutputswithgold-platedloud-

speaker terminals. Of course,AMPIVcanbeswitchedon and off re-

motely.TheAMPIVfascinateswithtransparency,richdetailsand the

greatestofease. Letyourselfbemore than inspired byits enthusiasm.

First,pleasereadthemanualand theprecautions carefully.TheAMPIV

isacomplexunit and offerslotsofcommon features. Incaseofdifficul-

ties, pleasedo nothesitateto contactyourdealer orourfactorydirectly!

Installation and powersupply

Pleasefind aplace foryourAudionetAMPIVthatissufficientlyventi-

lated to allowtheheatto dissipate.

Connectthepower jackattherear toyourwall outlet.You shouldeither

usetheprovidedpower cordoranother oneaccordingtoelectricalspeci-

fications ofyourhomecountry.Tuningwith"audiophile"power cords

can lead to improved sound field. Ask yourdealer forassistance.

NOTE:Thepower specificationsontherearmustmeet theelectrical

specificationsofyourhomecountry. TheAMPIVisaClass I-system

and mustbeearthed. Pleaseensure a stableearthconnection.

YourAudionetAMPIVisabletodetectawrongpolarization ofthe

mains. Ifyou see thefrontLEDflashingquicklywhenpoweringon, flip

theplugin yourwall outlet(also see below).

Additionally,on therear panelyou find amark"phase"nexttothemains

connector.Ifyou havetheoptional"AudionetPower Cord",APC,the

phaseis also marked on thewall plugitself.

Thecorrectpolarization ofthemains isimportantforreasons ofclarity

and stabilityofsound.

WARNING: AMPIVswitcheson automatically(AutoPower On)when

usingthemains switch attherear panel(see section "Operating").

Placing

Connecting

Mainsphase detection

AutoPowerOn

Inputs and Outputs

Foraddingorremovingconnections yourAMPIVmustbeswitched off!

Pleasemakesure thatall cablesare inabsolute bestcondition.Bro-

kenshieldsorshort-cutloudspeaker cablescoulddamageloud-

speakers ortheamplifier!

AtfirstconnectyourAMPIVtoyourpre amplifier.Theinputsare sub-

dividedintothegroups "RightGroup"and "LeftGroup".Withinbothgroups

are two inputjacks each ("IN1R"&"IN2R"and "IN1L"&"IN2L").

Ifyou wanttousetheAMPIVasa4channelpower amplifier flipboth

switches "Input Source"into position "Right Multi"and "Left Multi".

Incaseyou wanttousetheAMPIVasabi-ampingpower amplifier in

stereomodefliptheswitches"InputSource"intoposition "IN1R"and

"IN1L".Connecttheoutputsofyourpre amplifier toinputs"IN1R"and

"IN 1L".

Bothmodesare selectableseparatelytobothinputgroups. Forexample,

you canuse"GroupRight"withitsinputsforbothsurround channels"Left

Surround"and "RightSurround"(switchposition "RightMulti").Theleft

group canbeusedtosetup aCenter speaker inbi-ampingmode(switch

position "bi-ampIN1L").

ConnectyourspeakerstothegoldplatedWBTterminalsattheback.

Pleasemakesure thatthered outputs (+) oftheamplifier are connected to

thepositiveinputsoftheloudspeakers(usuallyred)and thewhiteoutputs

(-) are connectedtothenegativeloudspeaker inputs(usuallywhiteor

black).

Wrongspeaker polarization will result in severe loss ofsound quality!

Thenominalloudspeaker impedance should be4 ohms orhigher.

AlthoughtheAMPIVhasaprotection circuit topreventdamageofthe

system, switch off theunit whileworkingon theloudspeaker cables.

Inputs

Speakers

Never useforce ortools tighteningtheterminalscrews!

Inthefollowingyou will find theassignmentofinputjacks tocorre-

spondingloudspeaker outputsdependingon position ofswitch"Input

Source":

"Input Source"in position "Right Multi":

Input"IN 1R"-> Speakers output"OUT 1R"

Input"IN 2R"-> Speakers output"OUT 2R"

"Input Source"in position "Left Multi":

Input"IN 1L"-> Speakers output"OUT 1L"

Input"IN 2L"-> Speakers output"OUT 2L"

"Input Source"in position "bi-ampIN 1R":

Input"IN 1R"-> Speakers output"OUT 1R"&"OUT 2R"

Input"IN 2R"-> notused

"Input Source"in position "bi-ampIN 1L":

Input"IN 1L"-> Speakers output"OUT 1L"&"OUT 2L"

Input"IN 2L"-> notused

Assignmentofspeakers

Operating

First,switchon theAMPIVbyflippingthemains switchattherear in

position "1".Theswitchislocatedabovethemains socket.Nowthe

AMPIVwill startautomaticallyinrun mode(AutoPower On).To enter

thestand-bymodepress thebutton atthefrontpanel.

ForswitchingyourAMPIVon and off,pleaseusethepower button at

thefrontpanelfromnowon. Themains switchdoesnotneedtobeoper-

atedunless you are absentforalongtime.Itmustonlybeoperatedwhile

theAMPIVis in stand bymode

Asmentionedabove,yourAudionetAMPIVisabletodetectawrong

polarization ofthemains. Theindication isdonebythefrontLEDbe-

tweenthetouchofthe"power"keyand the"click"oftheloudspeaker re-

lays.

Ifthepolarization iscorrect,theLEDflashesÄ_____Ä_____Äetc.

However,ifyou shouldobserveafastsignalÄ_Ä_Ä_Ä_Ä_Äetc., flip

theplugin yourwall outletafter havingswitched off theAMPIV.

WhentheAMPIVisinstand-bymodeit canbepoweredup byany

Audionetpre amplifier (e.g.MAP,PRE, PRE1, PREG2, PRE1G2)

usingthe"Audionetlink".Thisfeature isdescribedinthepre amplifier

manuals, too.

You onlyneedasimpleoptical"Toslink"cable.Connectoneofthepre-

amplifier outputs"AudionetLink"withthe"Link"inputofyourAMPIV

"IN").NowtheAMPIVisswitchedon and off bythepre amplifier.

Lengthofthe"Toslink"cableisnotcritical-so you canplace theAMP

IVnextto thespeakers ifyou prefer.

Connectthe"AudionetLink"inputoffurther Audionetpower amplifiersto

the"link"output("OUT")ofAMPIVusingasimple,optical"Toslink"

cable.

Power

Mainsphase indicator

AudionetLink

Protection system

YourAudionetAMPIVisequippedwithoneofthemostpowerfulpro-

tection circuits availableon themarket.

In caseofan errorpleasecheck thecausereferringto thefollowingtable:

¨Overload:Short-circuit ofaloudspeaker cableorloudspeaker defect.

¨Overtemperature:Pleasefree thetop and bottomventilation slots!

¨HFError:HFoscillation, pleasecheck yourinputsource.

¨DCError:Dangerous DC-voltageattheoutput: Defectivepreamp,

source oractivecrossover carryingDC.

Apossiblefault isindicatedforall fourpower amplifiersseparately.In

caseofanerrortheLEDatthefrontpanelwill flash. Look throughthe

gaps inthetop plate.Attherear end ofthemainPCByou will find 12

LEDs. Whilerunnininerrorfree operatingmodeall 12 LEDswill beon.

IfanerroroccuredonlyoneoftheLEDswill beon indicatingtheerror.

There isanumber printednexttoeachLED.Pleaselook up thecorre-

spondingerrordescription in thefollowingtable:

1. DCon channel1L

2. DCon channel2L

3. DCon channel1R

4. DCon channel2R

5. Overload on channel1L

6. Overload on channel2L

7. Overload on channel1R

8. Overload on channel2R

9. Overtemperature on heatsink L

10. Overtemperature on heatsink R

11. High frequencyin group L

12. High frequencyin group R

WARNING: Removecauseforerrorbefore switchingon AMPIV

again!

Specialities

ForoptimizingthehighfrequencycapabilitiesAudionetconsequently

usesSurface-MountedDevices(SMD).Asaresult thefaster and more

compactcircuitsenabletheengineer touselow-straw and extremeshort

wiring. Theverygood dampingfactoris aresult ofthis, forinstance.

Pre and power stageshaveseparaterectifierscircuits. Themaintrans-

formersare ratedat2*400VA and drivesixteenhighcurrentcapacitors

withanoverall capacityof120.000mF.All 16 rectifyingdiodesare ultra-

fast"schottky"-types.

Inputand driver stages haveseparatefastand discretevoltageregulators.

IntheinputstageAudionetemploysalow-noisemonolithicDual-FET. A

dualdifferentialgainstagefollowsfeedingmultiplebootstrappedemit-

ter-followers, whichdecouplethepower stagesfromthevoltagegain

stages perfectly.

Afastarithmeticcorrection circuit locallyensuresthatdistortion ofthe

power stagesiseliminatedatonce.ThefastAmerican"IR"Power-

MOSFET-Transistorsensure powerfulloudspeaker controland longterm

stability.

Construction

Powersupply

Circuitry

Precautions and Care

¨Preventchildren fromplayingwith plasticbags!

¨Pleasestore and operatetheunit inadryroomatareasonableroom

temperature

¨Avoid moisture oranyliquid to getinto theunit

¨Setup theunit in afree position. Do notcover thetop.

¨Donotopenthecase.Nouser serviceablepartsinside.Unauthorized

openingwill causetheloss ofwaranty.

¨Do notshort-circuit theoutputterminals.

¨Pleaseuseadrycloth forcleaning

Wewish you manyexcitinglisteningexperienceswithyourAudionet

products!

Ifyou needfurther information aboutourproductspleasedo nothesitate

to contactyou localAudionetdealer orus directly!

YourAudionetTeam

Technical Data

Function4-channel power amplifier

Outputpower4*100 Wattsinto8ohms

4*160 Wattsinto4ohms

Frequencyrange2-300.000 Hz (-3dB)

Damping factor > 1000 from10 Hz to10 kHz

THD + N> 104 dB (25 Watts/4ohms)

Harmonic distortionk2typ. -115 dB for 25 Wattsinto4ohms

k3typ. -120 dB for 25 Wattsinto4ohms

Signal tonoiseratio> 110 dB

Channel separation> 90 dB at 1kHz

Inputimpedance 37 kohms, 150 pF

Inputs4RCAlineAC-coupled, gold-plated

1Audionet-Link, optical

Outputs4stereoloudspeaker terminals, gold-plated

1Audionet-Link, optical

Mains120 Vor 230 V, 50...60 Hz

2WStandby, max. 800 W

Dimensions430 mm *110 mm *360 mm (W*H*D)

Weight18 kg

FeaturesProtectioncircuit for HF, DC, temperatureandoverload

remote switch-onvia Audionet-Link (optical)

automatic mainsphaserecognition

autostartfunction

Engineered and produced by:

Idektron GmbH&Co. KG, HernerStr. 299, Gebäude 6, 44809 Bochum

www.audionet.de

contact@audionet.de

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