MIPRO ACT-311 + ACT-30H 1


The innovative ACT 3 Series wireless microphone systems are a culmination of years of extensive design and manufacturing experience. No wiring and adjustment required as PCB, LCD and front panel are integrated. Featuring 1/2U receivers of single-channel ACT311 & dual-channel ACT-312 and 1U receivers of single-channel ACT300.

EIA standard 19” rack-mountable metal chassis is used instead of cheap plastics. Featuring backlit LCD instead LED display for ease of use and professional appearance.  PLL-synthesized technology for RF stability and matched with rugged ACT-30H & ACT-30T transmitters.

Design and made in Taiwan. Advanced features and functions make it ideal for professional applications with affordable prices.




  • EIA standard 1/2U metal receiver.
  • Receiver provides bias for booster where MIPRO antenna systems can be added for extended receiving range and stability.
  • Backlit LCD displays group, channel, frequency, RF level, antenna selection, AF level, battery level indicator, interference warning indicator, and panel lock indicator.
  • A lit green light indicates a working mode when receiver detects an incoming signal or buttons touched. Light dims automatically when receiver is idle for about 10 seconds.
  • Balanced XLR / unbalanced 1/4 ” audio output jack, output level switch and DC input are on the rear panel. One mixed-output switch is available for dual-channel receivers.
  • High efficiency and low spurious PLL circuitry with Auto Scan functioin. Each receiver is presets with 11 groups, Groups 1~6, 7~10 have 8 &16 compatible channels respectively. Up to 8 channels in group 11 can be saved and recalled within 961 user-defined frequencies. A total of 112 preset channels per band.
  • World’s first ACT™ function provides precise and rapid frequency sync to the transmitters.
  • Advanced diversity technology for optimum reception range and reduces signal dropouts and the “PiloTone & NoiseLock” dual-squelch circuits prevent noise interference.
  • Adjustable ‘SQ’ for higher sensitivity to increase receiving distance and lower sensitivity to reduce interference.
  • Industry’s only RF interference warning indicator for ideal SQ level adjustment.
  • DC input socket accepts 12~15V power supply.
  • Matching ACT-30H handheld and ACT-30T bodypack transmitters.


  • Extremely rugged, ergonomically designed housing.
  • The unique flat top multi-layered steel grille protects the capsule against impact, rolling, pop noise and ensures sound clarity.
  • The unique flat top multi-layered steel grille for condenser capsules and round top for dynamic capsules protect the capsule against impact, rolling and pop noise. The upper grille is able to be detached easily for cleaning and hygiene practices.
  • Premium true condenser microphone capsule provides high fidelity, wide frequency response, high dynamic range, rapid transient response, clarity and accurate sound reproduction.
  • Proprietary lockable silent on/off switch to avoid accidental power-off during performance.
  • Impact-resistant battery compartment holds 2 AA batteries.
  • Interchangeable colored rings for microphone channel identification on stage.
  • LCD displays group, channel, battery level & error message codes.
  • Low spurious PLL-synthesized technology enhances frequency stability and reliability. Patented “Built-in” antenna design.
  • World’s first ACT™ function provides precise and rapid frequency sync to the transmitters.

Specification :

  • Channel: Single
  • Chassis: EIA-Standard 19″ 1/2U
  • Receiving Mode: Diversity
  • Frequency Range: UHF 480~934MHz
  • Antenna: Rear Panel. Detachable.
  • Preset Channels: 112 preset channels.
  • Group 1-6: 8 compatible channels in each group.
  • Group 7-10: 16 compatible channels in each group.
  • Group 11: Up to 8 channels can be saved & recalled. 961 user-defined frequencies in group 11.
  • Oscillation Mode: PLL Synthesized, Frequency Stability≦±0.005% (-10~+60℃)
  • Sensitivity: 10dBμV, at S/N>80dB
  • S/N Ratio: >106dB(A)
  • T.H.D.: <0.5% @ 1kHz
  • Frequency Response: 50Hz~18kHz, with high pass filter.
  • Squelch: “PiloTone & NoiseLock” dual-squelch circuit.
  • Audio Output Adjustment: Output level accurately pre-adjusted to equal to the microphone capsule sensitivity.
  • Maximum Output Level: 2-level Switch: Line & Mic
  • Power Supply: External AC Adapter, 12~15V DC, 1A
  • Dimensions: 210(W)×44(H)×180(D)mm / 8.3(W)x1.7(H)x7.1(D)”
  • Weight: Approx. 0.8kg / 1.8lbs
  • Note: Refer to actual product in the event of product discrepancy.
  • Frequency range and maximum deviation comply with the regulations of different countries.
  • Built-in Volume Control: N/A
  • Housing:  Rugged Plastic
  • Oscillation Mode: PLL Synthesized
  • Frequency Range: UHF 480~934MHz
  • Bandwidth: 24MHz
  • Channel Set-Up: ACT Sync
  • RF Output Power: 10~30mW (country dependent)
  • Spurious Emissions: <-55dBc
  • Max. Input Level: 140dB SPL
  • Display: LCD displays group, channel, battery status & error codes.
  • Battery: 2 AA alkaline
  • Dimensions: 50(Ø)×233(L)mm / 2.0(Ø)x9.2(L)”
  • Weight: Approx. 246g / 8.68oz (excluding batteries)
  • Patents & Approvals: Patented. Telecom and safety regulations approved.
  • Note: Refer to actual product in the event of product discrepancy.
  • Frequency range and maximum deviation comply with the regulations of different countries.


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