Overview
The MIPRO ACT-828 is a full-rack (19-inch) UHF digital wideband dual-channel receiver intended for professional wireless microphone systems in stage, installed sound, and facility AV environments. It supports a 72 MHz wideband receiving circuit, digital diversity reception, and 256-bit encryption, with analog balanced XLR output plus AES/EBU digital output. Optional Dante or AVB network audio is supported for systems that require audio-over-IP integration.
Manufacturer product page:
MIPRO ACT-828 product page
Key Features
- Dual-channel UHF digital receiver with 72 MHz wideband receiving circuit
- Receiving mode: digital diversity
- Encryption: 256-bit
- Display: color VFD with independent dual-channel readouts
- Auto Scan and ACT sync for frequency setup and transmitter synchronization
- Preset channel structure: 6 groups totaling 224 channels, plus a user-defined group for saving 16 channels from 2,881 available frequencies
- Audio outputs: analog balanced XLR with 3 switchable levels (+16 dB / 0 dB / -6 dB) and AES/EBU digital interface
- Monitor output: headphone jack with volume control
- Network interface: Dante or AVB (optional)
- Management interface: RJ-11 x 2 for PC software control (requires MIPRO DVU adapter) and BNC Word Clock In/Out for sync
- Antenna connections: detachable antennas with 50 ohm TNC female connectors that provide bias for MIPRO antenna systems
For multi-channel RF environments, the 72 MHz wideband tuning and the receiver’s frequency coordination features are intended to increase channel availability while managing interference. Digital diversity reception is designed to maintain consistent audio quality under changing RF conditions.
Technical Specifications
- Model: ACT-828
- Name: UHF Digital Wideband Dual-Channel Receiver
- Channel: Dual
- Chassis: Full-rack (19″) metal chassis
- Frequency Range: UHF 480-934 MHz (country dependent)
- Bandwidth: 72 MHz
- Receiving Mode: Digital diversity
- Display: Color VFD
- Control Interface: ACT sync button, channel selection buttons and rotary knob
- Sensitivity: 12 dBμV @ S/N > 100 dB
- Frequency Response: 20 Hz-20 kHz (< -2 dB)
- Dynamic Range: > 120 dBA
- Latency: 2.9 ms
- EQ Presets: 10 digital audio and anti-feedback EQs
- Audio Processing: DSP audio processor eliminates the compander noise that exists in analog systems
- Audio Outputs: Analog balanced XLR output with 3 switchable levels: +16 dB / 0 dB / -6 dB. AES/EBU digital interface.
- Monitor Output: Monitor headphone jack with volume control
- Network Interface: Dante or AVB (optional)
- Encryption: 256-bit
- Management Interface: RJ-11 x 2 for PC software control (requires MIPRO DVU adapter); BNC Word Clock In/Out for sync.
- Antenna: Detachable. 50Ω TNC female connector provides bias for the MIPRO antenna systems.
- Power Supply: DC 12-15 V. External AC 100-240 V switching power supply
- Dimensions: 420 x 44 x 219 mm (W x H x D)
- Weight: Approx. 2.1 kg
Notes on regional configuration: The manufacturer lists the frequency range as country dependent. Specific tuning ranges and available frequency blocks require confirmation for the destination region before deployment.
Applications and Use Cases
- Installed sound (facility AV): Dual-channel wireless receiver for meeting rooms, auditoriums, gyms, and performance spaces where rack-mounted infrastructure and predictable RF coordination are required.
- Live sound and production: Two-channel receiver for wireless handheld or bodypack transmitters in systems that need quick frequency setup and monitoring.
- Recording and broadcast-adjacent workflows: Receiver output options (analog XLR and AES/EBU) support routing into consoles, interfaces, and digital stagebox systems; optional Dante or AVB can integrate into audio-over-IP networks.
- Multi-channel RF deployments: Channel presets and scanning/sync features support coordination across multiple wireless channels when paired with compatible transmitters and RF accessories.
- Smaart tuning for live sound applications with a MiPro TA-80 Transmitter
Manufacturer Resources
- Product page:
MIPRO ACT-828 product page - Spec sheet PDF:
ACT-828 Spec Sheet (PDF) - User guide PDF:
ACT-828 User Guide (PDF) - Declaration of Conformity (DOC) PDF:
ACT-828 Declaration of Conformity (PDF)
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