Nady Systems HM-45 User Manual
USER GUIDE
HM-45
Uni-Directional Headmic
™
Congratulations on purchasing the Nady HM-45 ultra-small condenser
headset microphone. Optimally designed for singing and speech
applications, the HM-45’s small size and light weight make it
ideal for all hands-free use with minimum visibility.
Perfect for singers/musicians (drummers,
keyboardists), vocal/dance performers, DJs,
television announcers, public speakers,
and aerobics instructors.
Standard Items Supplied
• HM-45headmicwithsmallfoamwindscreen
• Additionalmediumandlargefoamwindscreens
• Userguideandwarranty
Optional Accessories
• XM-10 Mini-XLR to XLR phantom power adaptor
(converts 9-52VDC phantom power to 1.5VDC)
• HM-CC1 Plastic headmic carrying case
Features
• Widebandwidth,uni-directionalelectretcondensermic
ensures clean transparent audio and enhanced vocal pickup
with improved gain before feedback
• Durable,thinmetalframecanbeeasilymoldedtoanyuser
• Ergonomicsingle-eardesignandcomfortablefitwithor
without glasses, hats, or headphones (also no hairstyle
hindrance)
• Tinycapsulewithdiameterof5.0mmforlightestweight
and hours of comfortable use
• Threesizesoffoamwindscreenincludedtoreducewind
and popping noise
• Extendableboomfullyadjustable100degreesforoptimum
mic capsule placement
• AvailablewithMini-XLRor3.5mmphonoplugforwired
andwirelessapplications(fitsmoststandardwireless
bodypack transmitters)
• Choiceofblackorbeige
• Lowvoltagephantompowerrequired(1.5-6VDC)
Use and Care
Theheadset’sarch-shapedearrestisplacedoverwhichever
earyouchoose.Thetipofthesupportingarchesrestsbehind
theear,providingthenecessarystabilityduringuse.Themic
boom descends from the ear and should be placed close to
the mouth in a favorable audio position. Bend the boom and
headsetslightlyforoptimalfit.
ConnecttheMini-XLRor3.5mmphonoplugofthe
microphonecabletotheinputjackofthebodypack
transmitterorpowersupplyadaptor.Whenusingapower
supply adaptor, connect it to the microphone input of an audio
preamp that provides phantom power.
TheHM-45assemblyhasbeenmoisture-proofedtoguard
againstdeteriorationduringuse.Afteruseinahighmoisture
application such as aerobics or a stage performance, remove
the foam screen, wipe the headset with a dry soft cloth and
permit it to air-dry. Do not store the unit in a closed space
(e.g., a plastic bag) until all moisture has evaporated, and
avoidconditionsofextremelyhighhumidity.Thiswillhelp
maintaintheHM-45’sexcellentperformance.Whilethe
HM-45 is not unusually sensitive to the outside environment,
extremesintemperaturecanbeharmful.Avoidleavingthe
microphone in direct sunlight for long periods of time.
Frequency Pattern
and Polar Response
20
50 100
500
-20
-10
0
+20
+10
k
0
1
k
1
20k
Frequency in Hz
Relative
Response
in
dB