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TECPRO COMMUNICATION SYSTEM - Headsets

DMH320 – Dual muff SMH310 – Single muff

  • – New generation high performance headsets specifically designed for communications use
  • – Retains the renowned durability and comfort of the 200 series
  • – Very robust construction, made from unbreakable flexible composite material
  • – Similar construction to 200 series, spare parts also available
  • – Dual-chamber foam-filled earshells, larger than 200 series for wearing comfort
  • – High acoustic isolation on DMH320 for reduced ear fatigue
  • – Extended response ear loudspeakers
  • – Broadcast quality noise-cancelling dynamic microphone
  • – New boom design allows use with boom at left or right hand side
  • – Mic switched off by swinging boom upwards
  • – Boom can be bent into optimum position to suit the wearer
Technical Specification:
Nominal impedance:400 ohm each at 1kHz
Frequency response:20–20,000Hz
Sensitivity:94dB s.p.l. for 1mW
Distortion:Less than 0.5%
Max. rated power handling:0.5 watts
Microphone:Dynamic type, uni-directional, wired balanced
Nominal impedance:200 ohm at 1kHz
Frequency response:40–15,000Hz
Approx. weight:DMH320 350g
SMH310 220g
Cable:1.8m (balanced mic with separate left and right ear loudspeakers)

DMH220 – Dual muff SMH210 – Single muff

  • – Very robust construction with only two moving joints
  • – Hidden fixings hinder tampering whilst allowing easy repairs
  • – Full range of spare parts available
  • – Noise cancelling microphone on flexible steel-reinforced boom
  • – Steel core cable for extra strength
  • – Soft comfortable cushions
  • – Wide, smooth response for reduced listening fatigue
Technical Specification:
Nominal impedance:400 ohm each at 1kHz
Frequency response:20–20,000Hz
Sensitivity:94dB s.p.l. for 1mW
Distortion:Less than 0.5%
Max. rated power handling:0.5 watts
Microphone:Dynamic type, uni-directional
Nominal impedance:200 ohm at 1kHz
Frequency response:300–11,000Hz
Approx. weight:DMH220 250g
SMH210 210g
Cable:1.5m steel braced.
WIRING CONVENTIONS

Headset connectors:

XLR 4 pin -
Pin 1 Microphone earth/screen
Pin 2 Microphone signal
Pin 3 Earphones earth/screen
Pin 4 Earphones signal
XLR 5 pin -(BP116 and BP117 only)
Pin 1 Microphone earth/screen
Pin 2 Microphone signal
Pin 3 Earphones earth/screen
Pin 4 Left earphone signal
Pin 5 Right earphone signal
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