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-45 headmic with small foam windscreen
• Additional medium and large foam windscreens
• User guide and warranty
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
• Wide bandwidth, uni-directional electret condenser mic
ensures clean transparent audio and enhanced vocal pickup
with improved gain before feedback
• Durable, thin metal frame can be easily molded to any user
• Ergonomic single-ear design and comfortable fit with or
without glasses, hats, or headphones (also no hairstyle
hindrance)
• Tiny capsule with diameter of 5.0mm for lightest weight
and hours of comfortable use
• Three sizes of foam windscreen included to reduce wind
and popping noise
• Extendable boom fully adjustable 100 degrees for optimum
mic capsule placement
• Available with Mini-XLR or 3.5mm phono plug for wired
and wireless applications (fits most standard wireless
bodypack transmitters)
• Choice of black or beige
• Low voltage phantom power required (1.5-6VDC)
Use and Care
The headset’s arch-shaped ear rest is placed over whichever
ear you choose. The tip of the supporting arches rests behind
the ear, providing the necessary stability during use. The mic
boom descends from the ear and should be placed close to
the mouth in a favorable audio position. Bend the boom and
headset slightly for optimal fit.
Connect the Mini-XLR or 3.5mm phono plug of the
microphone cable to the input jack of the bodypack
transmitter or power supply adaptor. When using a power
supply adaptor, connect it to the microphone input of an audio
preamp that provides phantom power.
The HM-45 assembly has been moisture-proofed to guard
against deterioration during use. After use in a high moisture
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
avoid conditions of extremely high humidity. This will help
maintain the HM-45’s excellent performance. While the
HM-45 is not unusually sensitive to the outside environment,
extremes in temperature can be harmful. Avoid leaving the
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
