A900-PM-3/8IN Mounting Kit

Shure's A900-PM-3/8IN Mounting Kit includes parts to install compatible microphones on 3/8-inch diameter threaded rod (rod not included). Install the threaded rod on the ceiling and then attach the microphone using the VESA bracket for a simple mounting solution.

A900-PM also available for installation on 1.5-inch diameter threaded NPT pole.

Compatible Microphones

This accessory works with:

  • MXA920 series microphones
    • MXA920-S
    • MXA920-R
  • MXA902 series integrated conferencing ceiling arrays
    • MXA902-S
    • MXA902-S-60CM

What's in the Box

  • Mounting kit:
    • VESA bracket and set screw
    • Thumb screws (4)
    • Allen key (M4)
    • 3/8 in. adapter
    • Jam nut
    • Cable ties (8)

Illustration showing Shure A900-PM-3/8IN kit parts: VESA bracket, set screw, 4 thumb screws, 3/8-in. adapter, jam nut, and 8 cable ties.

Attaching Microphones to 3/8 in. Threaded Rod

To get started, you will need:

  • A900-PM-3/8IN kit
  • 3/8 in. diameter threaded rod and hardware to attach to ceiling*
  • Ethernet cable*

*Not included

  1. Install the threaded rod on the ceiling according to manufacturer's instructions. Route the Ethernet cable down the side of the threaded rod.
  2. Thread the jam nut onto the threaded rod.

    Illustration showing how to thread the jam nut onto 3/8-in. threaded NPT pipe.

  3. Attach the 3/8 in. adapter to the VESA bracket. Thread the VESA bracket onto the threaded rod. Using a wrench, tighten the jam nut against the 3/8 in. adapter.

    Illustration showing how to thread the 3/8-in. adapter onto the VESA bracket and then thread the assembly onto threaded rod.

  4. Partially thread the thumb screws into the microphone.

    An illustration showing how to partially thread 4 thumb screws into mounting holes on the back of MXA901 microphones.

  5. Lift the microphone and align the thumb screws with the holes in the VESA bracket. Tighten the thumb screws to secure the microphone to the VESA bracket.

    Important: Before tightening, make sure that the thumb screws are properly seated in the VESA bracket.

    When installing on short poles, it's easiest to check alignment from the side with the enclosed keyholes.

    Illustration showing how to lift and properly align an MXA901 with the VESA bracket. After aligning, tighten the 4 thumb screws to connect the mic to the bracket.

  6. Rotate the microphone to your preferred position. Tighten the VESA bracket's set screw with the Allen key to lock the position.

    Turn the VESA bracket to change the position of the MXA901. Then use an Allen key and set screw to lock the position of the VESA bracket.

  7. Connect the Ethernet cable to the microphone. Secure the Ethernet cable to the threaded rod with the cable ties.

    Illustration showing how to connect Ethernet cable to an MXA901 microphone mounted on 3/8-in. threaded rod.


  1. READ these instructions.
  2. KEEP these instructions.
  3. HEED all warnings.
  4. FOLLOW all instructions.
  5. DO NOT use this apparatus near water.
  6. CLEAN ONLY with dry cloth.
  7. DO NOT block any ventilation openings. Allow sufficient distances for adequate ventilation and install in accordance with the manufacturer’s instructions.
  8. DO NOT install near any heat sources such as open flames, radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat. Do not place any open flame sources on the product.
  9. DO NOT defeat the safety purpose of the polarized or grounding type plug. A polarized plug has two blades with one wider than the other. A grounding type plug has two blades and a third grounding prong. The wider blade or the third prong are provided for your safety. If the provided plug does not fit into your outlet, consult an electrician for replacement of the obsolete outlet.
  10. PROTECT the power cord from being walked on or pinched, particularly at plugs, convenience receptacles, and the point where they exit from the apparatus.
  11. ONLY USE attachments/accessories specified by the manufacturer.
  12. USE only with a cart, stand, tripod, bracket, or table specified by the manufacturer, or sold with the apparatus. When a cart is used, use caution when moving the cart/apparatus combination to avoid injury from tip-over.

    A cart with a receiver on top tipping over onto a person. There is a circle around the image with a line through it.

  13. UNPLUG this apparatus during lightning storms or when unused for long periods of time.
  14. REFER all servicing to qualified service personnel. Servicing is required when the apparatus has been damaged in any way, such as power supply cord or plug is damaged, liquid has been spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or moisture, does not operate normally, or has been dropped.
  15. DO NOT expose the apparatus to dripping and splashing. DO NOT put objects filled with liquids, such as vases, on the apparatus.
  16. The MAINS plug or an appliance coupler shall remain readily operable.
  17. The airborne noise of the Apparatus does not exceed 70dB (A).
  18. Apparatus with CLASS I construction shall be connected to a MAINS socket outlet with a protective earthing connection.
  19. To reduce the risk of fire or electric shock, do not expose this apparatus to rain or moisture.
  20. Do not attempt to modify this product. Doing so could result in personal injury and/or product failure.
  21. Operate this product within its specified operating temperature range.
This symbol indicates that dangerous voltage constituting a risk of electric shock is present within this unit.
This symbol indicates that there are important operating and maintenance instructions in the literature accompanying this unit.