User's Manual

17
SECURITY EARPHONE - HELMET KIT
• Generating Element: Electret Condenser
• Polar Pattern: Cardioid
• Frequency Range: 50Hz-18kHz
• Sensitivity: -53dB ±3dB 1V/microbar (2.2mV/Pa)
• Noise Level: 32dB „A“ weighted
• Max. Input SPL: 120dB
• Impedance: 2.8 to 6.8 kΩ, nominal 4.4kΩ
• Bias/+VDC: 1.5-9V
• Element: Magnetic Receiver
• Frequency Range: 100Hz-4kHz
• Sensitivity: 120dB ±3dB
• Impedance: 125Ω or 32Ω ±30% at 1000Hz
• Cable: Length 1.5m (59“) Ø 3mm
• Weight: 20 g (0.70 oz)
• Colors: black
Stay connected without com-
promises.
The VT HK Helmet kit has
been designed on customers
demand. Thanks to its high-
quality miniature Cardioid
capsule an optimal reproduc-
tion of the voice is guaran-
teed also with head wind. The
exible boom allows a precise
adjustment to the helm. Two
loudspeakers are mounted in
a compact body, which easily
can be mounted in the hel-
met. The VT HK Helmet kit is
very robust.
VT HK Helmet Kit
• Element: Magnetic Receiver
• Frequency Range: 100Hz-4kHz
• Sensitivity: 120 dB
±3dB at 1000 Hz
• Impedance: 125Ω or 32Ω ± 30% at 1000 Hz
• D.C. Resistance: 44Ω ± 3Ω
• Cable: Length 1.5m (59“)
• Plugs: 3.5mm Right Angle Phone (Mono)
• Weight: 20 g (0.71 oz)
• Colors: black
Great sound quality for pro-
gram that matters.
Designed for inconspicuous
listening requirements. The
earphone has a standard,
typical size 125Ω (or 32Ω)
driver. In combination with
a coiled acoustic tube the
sound is directed into the ear
canal. This method reduces
the ingress of ambient noise.
All parts can easily be ex-
changed. Other plugs or ano-
ther cable length are availab-
le on request.
VT610TC125 /VT610TC32 Earphone
Area of application: • Broadcast
• Security