MIPRO ACT-35B/ACT-52H×2 (MU-90) | Dual-Channel UHF Wireless Handheld Microphone System
The MIPRO ACT-35B/ACT-52H×2 (MU-90) is a dual-channel UHF wireless handheld system designed for professional environments such as stages, conferences, and worship. It features ACT automatic pairing and a diversity reception architecture, paired with the interchangeable MU-90 microphone capsule to provide stable transmission and clear, natural vocal reproduction. The receiver offers separate and mixed outputs; installation and operation are intuitive, allowing quick integration into a variety of sound reinforcement systems.
Key Product Features
- Dual-channel UHF reception with dual-antenna diversity design to improve reception stability and interference resistance
- ACT automatic channel synchronization — pair transmitters and receiver with the press of a button
- ACT-52H metal-bodied handheld transmitter with power/mute switch and clear status indicators
- Adjustable transmit power and input sensitivity to accommodate different venue sizes and pickup distances
- MU-90 interchangeable microphone capsule with optimized directionality to suppress ambient noise and feedback
- Receiver provides independent volume control per channel, offering balanced XLR outputs per channel and a mixed 6.3 mm output
- Front panel displays clearly show RF/AF levels and battery status for at-a-glance monitoring
- Multiple preset channels and quick-select frequency design for more efficient setup and deployment
- Rack-mountable and supports external antenna options for flexible expansion
- Wide dynamic range and low-distortion audio path deliver natural, detailed vocals
Technical Specifications
| Brand | MIPRO |
| Model / Package | ACT-35B / ACT-52H ×2 (MU-90) |
| Product Type | Dual-channel UHF wireless handheld microphone system |
| Package Contents | ACT-35B dual-channel receiver ×1; ACT-52H handheld transmitter ×2 (equipped with MU-90 microphone capsules) |
| Operating Band | UHF (actual operating band depends on shipped version and local regulations; refer to manufacturer's labeling) |
| Channel Plan | Multiple preset frequencies, selectable frequency operation, supports quick synchronization |
| Pairing Method | ACT (Auto Channel Targeting) automatic channel synchronization |
| Receiver Architecture | Dual-antenna diversity design to improve signal stability and interference resistance |
| Output Interfaces (Receiver) | Balanced XLR outputs ×2 (one per channel); mixed unbalanced 6.3 mm output ×1 |
| Controls / Display | Panel displays RF/AF levels, battery and channel information; independent volume per channel |
| Transmitter Power | 2 × AA batteries per transmitter (compatible with rechargeable batteries) |
| Receiver Power | External DC power supply (includes power adapter) |
| Microphone Capsule | MU-90 interchangeable capsule (directionality optimized for vocals) |
| Rack Mounting | Supports rack accessory installation and external antennas (accessories sold separately) |
| Applications | Stage performances, conference presentations, training/education, worship services, and rental events |
| Notes | Actual available frequency bands, bandwidth, and technical parameters are subject to the manufacturer's published specifications and local regulations |
