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Clear-Com CZ-MB340ES DX340ES 2-Channel 2.4GHz Wireless Base Station

Clear-Com CZ-MB340ES DX340ES 2-Channel 2.4GHz Wireless Base Station

SoundPro Item: 39930 | Part Number: CZ-MB340ES

Pricing available upon request

Pricing available upon request

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  • Triple Diversity Operation Maintains Link Stability In Dense RF Environments
  • Scales To 30 Users By Linking Two Base Stations Together
  • Dual-Channel Design Supports Independent Intercom Or Radio Routing
  • 10-Pin Terminal Strip Enables Direct 4-Wire Intercom Integration
  • Improved RF Filtering Over DX300ES Reduces Interference Susceptibility
  • 64-Bit Encryption Secures All Wireless Conversations
  • Multiple Power Options Support Both Fixed And Remote Deployments

The Clear-Com CZ-MB340ES is the base station component for the DX340ES digital wireless intercom system, designed for production teams, broadcast crews, and live event engineers who need reliable, hands-free two-way communication without frequency licensing requirements. It supports up to four full-duplex or fifteen half-duplex beltpack and all-in-one headset users per unit, and pairs with a second base to scale to a maximum of thirty users across a single system.

Built for demanding RF environments, the MB340ES uses triple diversity operation combining space, time, and frequency diversity to maintain link stability in multi-path settings like arena floors, broadcast trucks, and busy stage environments. Its 10-pin terminal strip connector provides straightforward integration with existing 4-wire intercom infrastructure, and the dual-channel design allows independent program or party-line routing. Improved RF filtering over the prior DX300ES generation reduces interference susceptibility in congested spectrum.

Flexible power options including 100-240V AC, 12-14V DC, six AA batteries, or the optional BAT850 rechargeable pack make the MB340ES equally at home in a rack, on a table, or deployed remotely in locations without mains power. Its compact footprint and quick setup process keep it practical for touring and temporary installs where deployment speed matters.

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Specifications

System
Frequency Range
All (2400-2483.5MHz), Low (2401.92 to 2439.936MHz) or High Band (2443.392 to 2481.408MHz)
Frequency Response
200Hz to 7kHz
Security
64-Bit Encryption
Temperature Range
-4 to 131°F (-20 to 55°C) typical
Transmit/Receive
Frequency-Hopping, Spread Spectrum (FHSS)
Transmit Power
100mw Burst
Modulation Type
Gaussian Filtered FSK, TDMA
Frequency Stability
13ppm
Harmonics/Spurious
Exceeds FCC and ETSI Specifications Over Temperature
RF Sensitivity
<-90dBm w 10-3 BER
System Distortion
<2%
Dynamic Range
-90dBm to -20dBm
FCC Acceptance
Part 15
Base Station
Antenna Type
External, Dual Diversity 1/2-Wave Dipole, R-TNC Connector (x2)
AUX I/O
600Ω Balanced, with Level Adjustment
Headset Connector
Mini-DIN (x2)
Headset Output
200mW into 32W
Relay
8-Pin Phoenix, NC/COM/NO/GND (x2), 2A @ 30V DC
Power
AC Input
100-240V AC, 50-60Hz
DC Input
12-14V DC
Battery
Six 1.5V AA Batteries or BAT850 Rechargeable Battery (Optional)
Dimensions
Width
8"
Height
8"
Depth
3.5"
Metric
203 x 203 x 90mm (WxHxD)
Weight
Product Weight
2.75 lbs (1.25kg) with Battery

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