The Q-Audio QCO-4 is a professional 4-way UHF antenna combiner designed for multi-channel wireless in-ear monitoring systems. Featuring four RF inputs and two transmitting antenna connections, the QCO-4 combines signals from multiple IEM transmitters into a shared antenna system, reducing the need for individual transmitter antennas and simplifying RF management. Operating across a wide 400–1000 MHz frequency range, the passive combiner features 50Ω impedance, low insertion loss and RF isolation between connected transmitters. Housed in a rackmount enclosure, the QCO-4 is ideal for live sound, touring and fixed installations where multiple wireless monitoring systems are required. Four 50cm BNC connection cables are included.
QCO-4 IEM Antenna Combiner
4-Way UHF Antenna Combiner with Dual Antenna Connections
The Q-Audio QCO-4 is a professional 4-way UHF antenna combiner, combining signals from up to four wireless IEM transmitters through two shared transmitting antennas.
SKU: 901.450UK
HS Code: 8518100090
Country of Origin: China
PRODUCT DESCRIPTION
KEY FEATURES
Professional 4-way passive UHF antenna combiner
Combines RF signals from up to four IEM transmitters
4 x RF input connections
2 x transmitting antenna connections
Operating frequency range: 400–1000 MHz
Insertion loss: ≤3.2 dB
RF isolation: ≥22 dB
Characteristic impedance: 50Ω
Rackmount design for professional installations
Reduces the need for individual transmitter antennas
Includes 4 x 50cm RG-58AU BNC connection cables
PACKING INFO
| SKU | 901.450UK |
| Outer Carton Quantity | 1 |
| Commodity Code | 8518100090 |
| Country of Origin | China |