Instruction Manual

•Takecarenottopinchthecableswhenwiring,
makingcablewiringbyforcemayresultinre
or electric shock.
•Usethespeciedplateincombination.Doing
otherwise may cause the unit or component
tofalloff,resultinginpersonalinjury.
CAUTION
When Installing the Unit
•Avoid installing the unit in humid or dusty
locations, in locations exposed to the direct
sunlight, near the heaters, or in locations
generating sooty smoke or steam as doing
otherwisemayresultinreorelectricshock.
•Avoidtouchingtheunit'ssharpmetaledgeto
preventinjury.
•To avoid electric shocks, be sure to switch
offtheamplier’spowerwhenconnectingthe
unit.
When the Unit is in Use
•Donotoperatetheunitforanextendedperiod
of time with the sound distorting. Doing so
may cause the connected speakers to heat,
resultinginare.
•Havetheunitcheckedperiodicallybytheshop
fromwhereitwaspurchased.Failuretodoso
mayresultincorrosionordamagetotheunit
orits mounting bracketthatcouldcausethe
unittofall,possiblycausingpersonalinjury.
2. GENERAL DESCRIPTION
TheAT-063AP,AT-303AP,andAT-603AParethewall-mounttransformertypeattenuatorscapable
ofhandlingawiderangeofinputpower.Theyfeature5-levelnevolumeadjustmentandapush-in
terminal block for easy cable connection.
3. FEATURES
•Volumeadjustableto5levels(0dB,−6dB,−12dB,−18dBandOFF)
•Apush-incoloredterminalblockprovidesaneasycableconnection.
4. SPECIFICATIONS
Model AT-063AP AT-303AP AT-603AP
Input volume 0.5–6W 0.5–30W 0.5–60W
InputImpedance 20kΩ–1.7kΩ 20kΩ–330Ω 20kΩ–170Ω
Attenuation 5steps(0dB,–6dB,–12dB,–18dB,OFF)
Applicable Cable 600Vvinyl-insulatedcable(IndoorVinylorHeat-resistantIndoorVinylcable)
Solidcable:ø0.8(0.03")–ø1.6(0.06")mm
Finish Knob,panel,plate:ABSresin,white(RAL1013orequivalentcolor)
Case: ABSresin,black
Terminal
Push-in connector
Dimensions 70(w)x120(h)x52.4(d)mm(2.76”x4.72”x2.06”)(withplate)
41(w)x108(h)x52.4(d)mm(1.61”x4.25”x2.06”)(attenuatoronly)
Weight
170g(0.37lb)(unitonly) 210g(0.46lb)(unitonly) 210g(0.46lb)(unitonly)
Note: Thedesignandspecicationsaresubjecttochangewithoutnoticeforimprovement.
• Accessories
Plate .......................................................................1
MachinescrewM3.5x5(mountedtotheplate) ....2
MachinescrewM4x35 ..........................................2
• Optional products
Plate: YP-1AF
Wallmountingbox:YS-11A
Flush-mountbox: YC-801
Wall-mountbox: YC-802