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The U-Box is a highly versatile, robust enclosure to convert any Clear-Com KB 4-Gang sized speaker station into a desktop, shelf or wall mount unit for portable or permanent installation.


  • Enclosure for KB speaker station
  • Permanently installed or portable
  • Integrated handles
  • Vertical or angled KB installation
  • Desktop or wall mount
  • VESA 75 mounting option
  • Rugged enclosure
  • Available wired for single or dual-channel partyline and 4-wire

Item Code

U-BOX-X3: Single-Channel

U-BOX-X6: Dual-Channel

U-BOX-RJ45: RJ45 Four-Wire

PSU-EXT-003: Power supply for U-Box-RJ45

Following included with U-Box: 280038Z-SP: Screw Kit to fasten KB / HB - (4 screws) 6-32 x 1/2”

MECH-00246-SP: Mounting Bracket Kit



U-Box-X3 XLR Partyline: 3-pin XLR-M/F

U-Box-X6 XLR Partyline: “Switchcraft-style”* 6-pin XLR-M/F

U-Box-RJ45 Four-Wire: etherCON RJ45

Input Power Connector: DC 2.1mm Co-axial


32° - 158°F (0 - 70°C)


U-Box Keyholes Center-to-Center: 4.0in (101.6mm)

Keyhole Diameter: 0.318-0.159in (8.08-4.04mm)

VESA Sockets Center-to-Center: 2.95in (75mm)

VESA Thread Type: M4x10

Mounting Bracket Keyholes Center-to-Center: 5.9in (149.9mm)


U-Box: 4.5 x 8.2 x 2.8in (HxWxD)

(113.79 x 208.79 x 70.23mm)

U-Box in Mounting Bracket: 5.4 x 8.3 x 6.1in (HxWxD)

(136.19 x 209.55 x 154.37mm)


U-Box: 0.71lbs (0.32kg)

U-Box with Mounting Bracket: 0.90lbs (0.41kg)

U-Box with KB Speaker Station: 1.97lbs (0.89kg)

*IMPORTANT: XLR Connector Compatibility Clear-Com products featuring 6-pin XLR connectors utilize the Switchcraft XLR pin layout. Compatible connectors are available from manufacturers, such as Switchcraft and Neutrik, yet compatibility must be verified. Neutrik 6-pin XLR connectors must include “S” in the part number to ensure compatibility.

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