0207 801 9111

This email address is being protected from spambots. You need JavaScript enabled to view it.

Tram - TR50 Lavalier Microphone

When it was introduced, the TRAM® TR50 miniature microphone revolutionized the industry- it has become the standard in feature film, television production and other areas of the entertainment industry. In addition to its diminutive size and superior sound quality, the TR-50 offers a combination of features that are simply not offered by any other microphone.


The TRAM® TR50 miniature professional lavalier microphone answers the needs of even the most demanding sound recording engineer. It has been designed with the latest electret development and electronics technology, to provide high sound quality with little or no visibility. Its small size and unique design permit a variety of uses and fastening options, that make it ideal for unobtrusive appearance and hidden mic use. The tiny omni-directional capsule features minimum sound coloration and is therefore easily combined with boom mics during post production. A variety of accessories makes mounting the mic on or under clothing easy, with reliable results.


The extended frequency response range and omni-directional characteristics have been designed to satisfy the most stringent requirements in all professional audio fields, particularly film and TV production.


The TR50 is available with a variety of connectors (Micro-Mini, Lemo (4, 6 or 8pin), Mini Switchcraft (3, 4 or 5pin), Sony, Sennheiser, etc.) For direct attachment to any wireless microphone transmitter. In addition to its use with wireless transmitters, the TR-50 can be used as a low impedance hard-wired microphone with the TR-79 power supply. 12/48v phantom powering (in addition to internal powering) is available on all TR-50*PS microphones and TR-79+ positive bias power supplies.

The TR79 power supply provides a balanced transformer output to an XLR connector and uses an Eveready 357 battery. The battery compartment is designed to permit only one insertion direction, so the polarity cannot be reversed. This compartment is accessible by turning the black plastic end cap counter clockwise and pulling firmly. The battery is removed by pushing it out with a sharp object through the hole provided in the bottom of’ the compartment.

  • TR50 Lavalier Mic Features:
    • Miniature Electret Condenser Microphone
    • Minimum sound coloration for universal use
    • Easily combined with boom microphones
    • Tiny, lightweight and compact; easily concealed
    • Extensive range of mounting accessories
    • Wide frequency response
    • Very low rubbing noise
    • Internal battery or 12-48V phantom power* (*with positive bias version only)
    • Detachable 250 Q power supply
    • Available in 4 colors: black, gray, white, tan
    • Large range of connectors for direct use on a wireless transmitter
    • Strong, durable and reliable
    • One-year warranty


  • TR50 Specifications:
    • Size: .18” x .300” x .55”
    • Type: Omni-directional electret condenser
    • Freq. Response: 40 - 16,000 Hz
    • Noise Level: 26dB equivalent SPL
    • Maximum SPL: 134dB
    • Output Level: -57dB
    • Nominal Impedance: 3,000Ω (TR-79 Power Supply - 250Ω)
    • Operating Voltage: 1.5V
    • Current Drain: 20-30 microamps (TR-79: 80-100 microamps)
    • Battery: 357 (SR44W/313)
    • Isolated Mic Element: To reduce rubbing noise
    • Bias: Negative and Positive
    • Cable: Sturdy, Flexible (TR-50BPS – 9 ft. long)
    • Available mic colors: Black, Gray, Tan, or White


  • TR50 Standard Accessories included with microphone (replace * with color):
    • Cable Holder with Vampire Pins (*CH)
    • Clip on Holder with Vampire Pins (*COH)
    • Tie Bar with Alligator Clip (*TB)
    • Tie Tac (*TT)
    • Windscreen (*WS)
    • Tape Down (*TD)
    • Carrying Case (*CC)
    • Cable Reel (*CR) - PS versions only

When using the Clip On and Tape Down Holders under clothing, mount the mic with the back out (facing clothing), as the back of the microphone housing has less rubbing noise than the front grid. There will be no reduction in audio sensitivity. These accessories are available in Black, Gray, Tan or white.

  • TR50 Optional Accessories:
    • Boundary Layer Tape Down (BLTD)
    • Double Tie Bar (BDTB)
    • Mic Cage with Plain Back (MC1)
    • Mic Cage with Vampire Pin Back (MC2)
Full Review William Hill www.wbetting.co.uk

This product is available for hire, please call 0207 801 9111 for information on availability, alternatively you can message us here.