SKU: COMBINE4

COMBINE4 Transmitter Combiner

IN STOCK

MAP: $799 USD

The COMBINE4 active IEM transmitter combiner brings together up to four in-ear monitor transmitter signals into a single, more powerful transmit antenna, eliminating the use of problematic multiple antennas while lowering the buildup of unwanted Intermodulation.

Where To Buy Learn More

Key Features Setup What's Included Resources FAQs

Key Features & Benefits

Optimize Antenna Performance Freedom to place one directional antenna outside the rack for better line-of-sight and improved wireless performance.

Stay Connected 1RU Full rack width to install near transmitters. Includes cabling accessories to connect and power up to four wireless transmitters.

Compatible Works with all manufacturers transmitters.

What Our Customers Have to Say

"RF Venue is simply the best all around solution for multiple wireless mic setups."

Ball Electronics

"We choose RF Venue products because they allow us to handle the most challenging, unique, and interesting wireless projects while assuring our clients that their show reliability will be rock solid."

Event Wave Productions

Product Setup

The COMBINE4 is also sold bundled with CP Beam Antenna (CPB). This turnkey bundle includes everything needed to configure up to 4 channels of In-Ear Monitors. Including Premium made in USA low loss double shielded coaxial cabling coax cable. (1) CP Beam Antenna (CPB) for In-Ear Monitors1) COMBINE4 transmitter combiner(1) RG8X25 Coaxial Cables BNC(Product Combinations)

What's Included

SKU: COMBINE4 - COMBINE4 Antenna Combiner, (4) BNC jumpers, (4) DC jumpers, (1) AC power cord

Specifications and Product Resources

View All Resources

Combine4 8 Channel Setup

See Guide

RF Venue Distribution Guide

See Guide

November 19 04:00 AM EST

November 19, 2025 at 1:00 PM GMT (9:00 AM EST): Understanding Distros and Combiners: What, When, and Why

November 20 07:30 AM EST

November 20, 2025 at 12:30 PM EST: Understanding Distros and Combiners: What, When, and Why

Frequently Asked Questions

What is a combiner?

RF combiners are used in the A/V world for pushing multiple IEM transmitter signals through a single antenna. They solve the same problems as distributors, except the signal path is reversed--instead of passively receiving multiple signals through one antenna pair, they actively send multiple signals through a single antenna. For live sound applications where each member of a band has a custom mix routed through an individual IEM (in-ear monitor), combiners are essential components. They reduce clutter at the rack by eliminating whip antennas, provide DC power, and reduce intermodulation caused by antenna farming while allowing the technician to directly focus a beam of RF directly at the stage--assuring all talent receives their IEM mix interference free.

What are the main benefits of antenna distribution for IEM transmitters?

Multiple transmitters: one antenna. Multiple transmitters: one antenna. Clean, easy. No crazy antenna farms. Freedom to place that one antenna elsewhere in the venue or on stage wings for better line-of-sight and improved SNR. Ability to use specialized antennas designed specifically for IEM applications, like the CP Beam. DC power distribution on most Tx distributors means no wall warts and a cleaner looking rack Racks without PSUs and multiple whip antennas also provide better RF performance. This is especially true with IEMs, vs. passive wireless microphone antenna distribution.

Can I mix RF Venue products with other brands?

Yes, as a general rule: Wireless mic systems, distro systems, antennas, and coax cables from nearly any brand can be successfully used together, provided that they operate in the same frequency range and within the rated power levels. You can add an RF Venue distro to an existing distro from another manufacturer to provide for additional wireless mic systems. It is unlikely, however, that you could mix a transmitter from one manufacturer with a receiver from another even if the frequencies match because of their coding schemes.