ICON NeoAmp User manual

4CHANNELSSTEREO
HEADPHONEAMP
PhantomPowerSupply
ON
OFF
PHASE
NeoAmp
MIC1INPUT MIC2INPUT
ON
OFF
4CHANNELSSTEREO
HEADPHONEAMP
NeoAmp
ON
OFF
2Channelmicrophone/instrument
preampwithdirectbox
NeoPreAmp
PHONTOM
POWER
INPUT
LEVEL
GIN/SPK OUTPUT/LINK
MIC/INST
PHONTOM
POWER
MIC/INST
HEADPHONE1HEADPHONE2HEADPHONE3HEADPHONE4
LEVEL1 LEVEL2LEVEL3LEVEL4
ON
OFF
PhantomPowerSupply
NeoDI
NeoAmpisa4-channelheadphoneamplifierthatcanprovidemega-powerto
4headphonessimultaneously.

Introduction
NeoAmpFeatures
FrontPanelLayout
RearPanelLayout
OperatingtheNeoAmp
Schematic
Services
NeoAmpConnections
Specifications
Contents
2
3
4
5
7
8
1
9
10

1.Pleasereadallinstructionsbeforeoperatingtheunit.
2.Keeptheseinstructionsforfuturereference.
3.Pleasereadallsafetywarnings.
4.Followthemanufacturerinstructions.
5.Donotusethisunitnearwaterormoisture.
6.Cleanonlywithadrycloth.
7.Installinaccordancewiththemanufactureinstructions
8.Donotinstallnearanyheatsourcessuchasradiators,heatregisters,stoves,or
otherapparatus(includingamplifiers)thatproduceheat.
9.Donotdefeatthesafetypurposeofthepolarizedorgrounding-typeplug.
Apolarizedplughastwobladeswithonewiderthantheother.Agrounding
typeplughastwobladesandathirdgroundingprong.Thewidebladeorthird
prongisprovidedforyoursafety.Whentheprovidedplugdoesnotfityouroutlet,
consultanelectricianforreplacementoftheobsoleteoutlet.
10.Protectthepowercordfrombeingwalkedonandpinchedparticularlyatplugs,
conveniencereceptaclesandatthepointatwhichtheyexitfromtheunit.
11.Unplugthisunitduringlightningstormsorwhenunusedforlongperiodsoftime.
12.Referallservicingtoqualifiedpersonnel.Servicingisrequiredwhentheunithas
beendamagedinanyway.
ImportantSafetyInstructions
WARNING:Toreducetheriskoffireorelectricshock,donotexposethisunittorainormoisture

Introduction
Inthesepages,youwillfindadetaileddescriptionofthefeaturesofthe
NeoAmp,aswellasaguidedtourthroughitscontrolpanel,step-by-step
instructionsforitssetupanduse,andfullspecifications.
Youwillalsofindawarrantycardenclosed-Pleasedon`tforgettofillitout
andmailitinsothatyoucanreceiveonlinetechnicalsupportandsowe
cansendyouupdatedinformationabouttheseandotherICONproductsin
thefuture.
Withpropercare,yourNeoAmpwilloperatetroublefreeformanyyears.We
ecommendyourecordyourserialnumberinthespaceprovidedbelowfor
futurereference.
Guide
Pleasewriteyourserialnumberhereforfuturereference:
Purchasedat:
Dataofpurchase:
Apersonalwelcometoyoufromthemanagementandemployeesof
ICON
Alloftheco-workershereatICONarededicatedtoprovidingexcellent
productswithinherentlygoodvalue,andwearedelightedyouhave
purchasedoneofourproducts.
Wesincerelytrustthisproductwillprovideyearsofsatisfactoryservice,but
ifanythingisnottoyourcompletesatisfaction,wewillendeavortomake
thingsright.
WelcometoICON,andthankyouforbecomingpartofourworldwide
extendedfamily!
Welcome
1

NeoAmpFeatures
2
ON
OFF
4CHANNELSSTEREO
HEADPHONEAMP
HEADPHONE1HEADPHONE2HEADPHONE3HEADPHONE4
LEVEL1 LEVEL2LEVEL3LEVEL4
ACIN STEREOINPUT
Fourchannelstereoheadphoneamplifier
Maximumoutputpoweroneachchannelregardless
ofdifferentheadphoneimpedances
Four1/4inchstereoheadphoneoutputs
Individualvolumecontrolforeachheadphoneoutput
Stereo1/4-inchinputconnector
Ruggedaluminumextrusionchassis
Largerubberbumpers
18VoltACadapterincluded
Threeyearextendedwarranty

FrontPanelLayout
3
ON
OFF
4CHANNELSSTEREO
HEADPHONEAMP
HEADPHONE1HEADPHONE2HEADPHONE3HEADPHONE4
LEVEL1 LEVEL2LEVEL3LEVEL4
1 2 3 4
5 6 7 8 9
①
②
③
④
⑤
⑥
⑦
⑧
⑨
HEADPHONE1
HEADPHONE2
HEADPHONE3
HEADPHONE4
LEVEL1
LEVEL2
LEVEL3
LEVEL4
POWERSWITCH
1/4 outputforconnectingheadphone1
1/4 outputforconnectingheadphone2
1/4 outputforconnectingheadphone3
1/4 outputforconnectingheadphone4
ControlknobusedtoadjusttheoutputlevelofHeadphone1
ControlknobusedtoadjusttheoutputlevelofHeadphone2
ControlknobusedtoadjusttheoutputlevelofHeadphone3
ControlknobusedtoadjusttheoutputlevelofHeadphone4
TheLEDglowsredwhentheunitison.

RearPanelLayput
4
ACIN STEREOINPUT
1
2
①
②
ACPOWERADAPTERINPUT
STEREOINPUT
Connectthesuppliedpoweradapterhere
1/4-inchTRS(TIP/RING/SLEEVE)connectortoinputmainstereosignal

5
OperatingtheNeoAmp
ON
OFF
4CHANNELSSTEREO
HEADPHONEAMP
HEADPHONE1HEADPHONE2HEADPHONE3HEADPHONE4
LEVEL1 LEVEL2LEVEL3LEVEL4
ThebasicprocedureforsettingupandusingyourNeoAmpissimpleandtakes
onlyafewminutes.Removeallpackingmaterials(savethemincasetheyare
neededforfutureserviceortransportation)andchecktomakesurethatyou
removethesuppliedACpoweradapter.
Beforeyouconnectyourheadphones,besuretodouble
checkthatalllevelcontrolsareturnedallthewaydown(fullycounterclockwise
position).TheNeoAmpissmall,butpowerful.Itcangenerateloudsignallevels
intotheconnectedheadphones.Werecommendthatyouexerciseextreme
cautionandcareforyourears.Alwaysstartwiththelevelcontrolsallthewayoff
andslowlyraisethesignaltoacomfortablelisteninglevel.
ConnecttheoutputfromthedeviceyouwantmonitoredtotheSTEREOINPUT
jacksontheNeoAmpRearpanel.
Setthecontrolstothefollowingpositions:
IMPORTANTNOTE:
TurnthefourheadphonechannelLEVELknobstotheirminimum(fully
counterclockwise)setting.
PlugtheNeoAmppoweradapterintoawalloutlet.
Applyasignal,liketheoutputofamixerplayingaCD,totheNeoAmp'sSTEREO
INPUTjack.
ConnectasetofheadphonestoChannel1andslowlyturnthechannel'sLEVEL
knobclockwiseuntilyouhearthedesiredlevel.

OperatingtheNeoAmp
6
MIX
1
TRIM
PEAK
LINEIN
MICIN
-60-16-30+14
U
HI
12K
MID
PREQ
L/R
1-2
3-4
SOLO
PFL
L/R
1-2
3-4
-15+15
U
1008K
U
10
U
U
-15+15
-15+15
+15
U
U
10
10
U
1
PER
AUX1
AUX2
EFX
PAN
TRIMTRIMTRIMTRIM
HI
12K
MID
PREQ
SOLO
PFL
L/R
1-2
3-4
AUX1
AUX2
EFX
PAN
HI
12K
MID
PREQ
SOLO
PFL
L/R
1-2
3-4
AUX1
AUX2
EFX
PAN
HI
12K
MID
PREQ
SOLO
PFL
L/R
1-2
3-4
AUX1
AUX2
EFX
PAN
HI
12K
MID
PREQ
SOLO
PFL
L/R
1-2
3-4
AUX1
AUX2
EFX
PAN
HI
12K
MID
PREQ
SOLO
PFL
L/R
1-2
3-4
AUX1
AUX2
EFX
PAN
HI
12K
MID
PREQ
SOLO
PFL
L/R
1-2
3-4
AUX1
AUX2
EFX
PAN
HI
12K
MID
PREQ
SOLO
PFL
L/R
1-2
3-4
AUX1
AUX2
EFX
PAN
HI
12K
MID
PREQ
SOLO
PFL
L/R
1-2
3-4
AUX1
AUX2
EFX
PAN
HI
12K
MID
PREQ
SOLO
PFL
L/R
1-2
3-4
AUX1
AUX2
EFX
PAN
-15+15
U
1008K
U
10
U
U
-15+15
-15+15
+15
U
U
10
10
U
-15+15
U
1008K
U
10
U
U
-15+15
-15+15
+15
U
U
10
10
U
-15+15
U
1008K
U
10
U
U
-15+15
-15+15
+15
U
U
10
10
U
-15+15
U
1008K
U
10
U
U
-15+15
-15+15
+15
U
U
10
10
U
-15+15
U
1008K
U
10
U
U
-15+15
-15+15
+15
U
U
10
10
U
-15+15
U
1008K
U
10
U
U
-15+15
-15+15
+15
U
U
10
10
U
-15+15
U
1008K
U
10
U
U
-15+15
-15+15
+15
U
U
10
10
U
-15+15
U
1008K
U
10
U
U
-15+15
-15+15
+15
U
U
10
10
U
-15+15
U
1008K
U
10
U
U
-15+15
-15+15
+15
U
U
10
10
U
23456
LINEINLINEINLINEINLINEINLINEIN
-60-16-30+14
U
-60-16-30+14
U
-60-16-30+14
U
-60-16-30+14
U
-60-16-30+14
U
MICINMICINMICINMICINMICIN
TRIM
-60-16-30+14
UTRIM
-60-16-30+14
UTRIM
-60-16-30+14
UTRIM
-60-16-30+14
U
11/1213/1415/1617/18
RRRR
L/MONOL/MONOL/MONOL/MONO
AUXRETURN1
L/MONO R L/MONO R
AUXRETURN2MAINOUT
LR
L
L
R
R
INSERT
CONTROL
ROOM
PEAK
2
PEAK
3
PEAK
4
PEAK
5
PEAK
6
PEAK
7
PEAK
8
PEAK
9
PEAK
10
PEAK
1234567/89/1011/1213/14
IMX-1404
4BUS14CHANNELCOMPACTINTEGRATEDSTUDIOMIXINGCONSOLE
10
U
U
10
10
U
10
U
U
10
10
U
U
10
10
U
TO
MIX
HEADPHONE
SUB
TO
MIX
MAINMIX
+5
+4
+2
0
-2
-4
-7
-10
-15
-20
PFLSOLO
MONO
TAPEIN
C.R/PHONES
AUX1
AUX2
EFX
AUX1
AUX2
SENDRETURN
PFL
SOLO
3/4
1/2
GROUP
MIX
TAPEIN
10
5
10
5
5
10
15
40
30
20
10
5
10
5
U
5
10
15
40
30
20
1SUB2SUB3SUB4
10
5
10
5
5
10
15
40
30
20
10
5
10
5
U
5
10
15
40
30
20
10
5
10
5
5
10
15
40
30
20
10
5
10
5
U
5
10
15
40
30
20
10
5
10
5
5
10
15
40
30
20
10
5
10
5
U
5
10
15
40
30
20
10
5
10
5
5
10
15
40
30
20
10
5
10
5
U
5
10
15
40
30
20
10
5
10
5
5
10
15
40
30
20
10
5
10
5
U
5
10
15
40
30
20
10
5
10
5
5
10
15
40
30
20
10
5
10
5
U
5
10
15
40
30
20
10
5
10
5
5
10
15
40
30
20
10
5
10
5
U
5
10
15
40
30
20
10
5
10
5
5
10
15
40
30
20
10
5
10
5
U
5
10
15
40
30
20
10
5
10
5
5
10
15
40
30
20
10
5
10
5
U
5
10
15
40
30
20
10
5
10
5
5
10
15
40
30
20
10
5
10
5
U
5
10
15
40
30
20
10
5
10
5
5
10
15
40
30
20
10
5
10
5
U
5
10
15
40
30
20
10
5
10
5
5
10
15
40
30
20
10
5
10
5
U
5
10
15
40
30
20
10
5
10
5
5
10
15
40
30
20
10
5
10
5
U
5
10
15
40
30
20
10
5
10
5
5
10
15
40
30
20
10
5
10
5
U
5
10
15
40
30
20
ACIN STEREOINPUT
ON
OFF
4CHANNELSSTEREO
HEADPHONEAMP
HEADPHONE1HEADPHONE2HEADPHONE3HEADPHONE4
LEVEL1 LEVEL2LEVEL3LEVEL4
RepeatthepreviousstepforalltheChannelsthathaveheadphonesconnected,
makingsuretostarttheLEVELknobcompletelycounterclockwiseandthenslowly
raisingituntilthedesiredlevelisachieved.Ifyouhaveconnecteddifferentmodels
ofheadphonestothevariousChannelHeadphonejacks,youmayfindthatsome
requiremoregainthanotherstoachievethesamevolume.Thiskindofdisparity
occursifthevariousheadphoneshavedifferentimpedances.Thelowerthe
impedance,theloudertheheadphonewillsoundcomparedtoanother,higher
impedanceheadphoneatthesameVOLUMEsetting.Anotherfactoraffecting
headphoneloudnessiscalledsensitivity.Thisisgenerallymeasuredbydetermining
thedecibel(dB)levelgeneratedby1MWofpowerinput.ThehigherthedBrating,
theloudertheheadphone.Seethereferencechartformoredetails.
Thediagrambelowshowsatypicalset-upforasmallbandusingtheNeoAmp
headphoneamplifierwithastereomixerforasophisticatedpersonalheadphone
monitoringsystem.
TypicalSet-up
Typicalhook-upforfourheadphoneswithindependentlevelcontrol

7
NeoAmpConnections
OTHERMANUFACTURER'SHEADPHONES
ManufacturerModelImpedanceSensitivity/MW
AKGK-141600ohm98dB
AKGK-240600ohm88dB
BeyerDT-150250ohm114dB
BeyerDT-801250ohm114dB
FostexT-1050ohm91dB
FostexT-2050ohm96dB
FostexT-4050ohm98dB
SennheiserHD-450(original)70ohm94dB
SennheiserHD-450SeriesII60ohm94dB
SonyMDR-750245ohm100dB
SonyMDR-750445ohm103dB
SonyMDR-750663ohm106dB
ICONHEADPHONES
ModelImpedanceSensitivity/MW
HP160200ohm97dB
HP400200ohm97dB
HP420200ohm90dB
HP424200ohm>98dB
HP428200ohm>98dB
HP500600ohm>93dB
HP600600ohm>95dB
HP722600ohm>98dB
HEADPHONEIMPEDANCEANDSENSITIVITYRATINGS
Virtuallyallheadphonesthatterminateinastereo1/4"plugcanbeusedwiththe
NeoAmpHeadphoneAmp.
Thischartprovidesapartiallistingofsomeofthemorepopularmodels,along
withtheirimpedanceandsensitivityratings.Headphoneswithlowerimpedances
(orhighersensitivity)willsoundlouderascomparedtoother,higherimpedance
(orlowersensitivity)headphonesatthesamechannelVolumesetting.
ICONhasnoconnectionwithanyofthesemanufacturers,nordoweendorse
anyparticularmodelsforusewiththeNeoAmp.Thisissimplyareferencelisting
foryourconvenience.Formoreinformationaboutanyoftheseheadphones,
contactthemanufacturerdirectly.

ON
OFF
2Channelmicrophone/instrument
preampwithdirectbox
NeoPreAmp
PHONTOM
POWER
MIC/INST
PHONTOM
POWER
MIC/INST
NeoAmp
INPUT
LEVEL
GIN/SPK OUTPUT/LINK
ON
OFF
PhantomPowerSupply
NeoDI
PhantomPowerSupply
ON
OFF
PHASE
MIC1INPUT MIC2INPUT
ON
OFF
4CHANNELSSTEREO
HEADPHONEAMP
NeoAmp
HEADPHONE1HEADPHONE2HEADPHONE3HEADPHONE4
LEVEL1 LEVEL2LEVEL3LEVEL4
StackingNeoAmp
8
StackingtheNeoAmp
YoucanstackoneNeoAmporanyotherICONNeoSeriesgearsontopofeach
otherbysimplyliningupthebumpers.

Specifications
9
InputImpedance100Kohmunbalanced
MaxInputLevel+19dBV
InputConnectorsStereo1/4 TRSphone
Outputs4Stereo1/4 TRSphone
OutputImpedance100ohmeachoutput
MaxGain20dB/Channel
S/NRatio>90dB
THD<.005%
IMD(SMPTE)<.005%
Power18VACadapter
Dimensions7.87 Lx4.88 Wx2 H
(200mmLx124mmWx51mmH)
Weight2.5lb(1.12Kg)

Schematic
10

Services
11
1.Ensuretheproblemisnotrelatedtooperationerrororexternalsystem
devices.
2.Keepthisowner'smanual.Wedon'tneedittorepairtheunit.
3.Packtheunitinitsoriginalpackagingincludingendcardandbox.This
isveryimportant.Ifyouhavelostthepackaging,pleasemakesureyou
havepackedtheunitproperly.ICONisnotresponsibleforanydamage
thatoccursduetonon-factorypacking.
4.ShiptotheICONtechsupportcenterorthelocalreturnauthorization.
U.S.OFFICE:
ICONDigitalCorp.
2222PleasantViewRoadSuite#1
Middleton,WI53562USA
EUROPEOFFICE:
ICON(Germany)
Klingelweg14,D-36132,
Soisdorf,Germany
ASIAOFFICE:
ICON(Asia)
SuiteNo.2209,22/F,SkylineTower,39WangKwongRoad,KowloonBay,
BayKowloon.HongKong
Foradditionalupdateinformationpleasevisitourwebsiteat:
www.ICON-global.com

[e-mail]
www.icon-global.com