Harmonai ACT-750 Quad Wireless Microphone System image 1

Harmonai ACT-750 Quad True Diversity Wireless Mic System — 500m Stable UHF Transmission

The Harmonai ACT-750 quad true diversity wireless microphone system uses dual-conversion superheterodyne reception and UHF 500–900 MHz frequency band with 200 selectable channels....

$229.41

Model: ACT-750
Category: Microphones
Images: 4 images
Status: ready

Product Brief

Harmonai ACT-750 Quad True Diversity Wireless Mic System — 500m Stable UHF Transmission

Overview

The Harmonai ACT-750 quad true diversity wireless microphone system uses dual-conversion superheterodyne reception and UHF 500–900 MHz frequency band with 200 selectable channels....

Price: $229.41
Model: ACT-750
Category: Microphones

Specifications

Parameter	Value
Receiver Architecture	Dual-conversion superheterodyne
Input Power	5 W
First IF	110 MHz
Second IF	10.7 MHz
Wireless Interface	BNC / 50 Ω
Sensitivity	12 dBμV (80 dB S/N)
Sensitivity Adjustment Range	10–32 dBμV
Spurious Rejection (Receiver)	≥95 dB
Peak Output Level	+10 dBV
Antenna Type	Handheld mic: built-in antenna / Bodypack transmitter: 1/4-wave whip antenna
Transmitter Output Power	20 mW
Transmitter Spurious Rejection	−60 dB
Transmitter Power Supply	Two AA batteries (1.2–1.5 V)
Frequency Range	500–900 MHz
Modulation	Wideband FM
Tuning Range	50 MHz
Number of Channels	200
Channel Spacing	200 kHz
Frequency Stability	±0.005%
Dynamic Range	>105 dB
Peak Frequency Deviation	±45 kHz
Audio Response	40 Hz–18 kHz (±3 dB)
Composite SNR	>110 dB
Composite Distortion	≤0.2%

Service Support

We support project consultation, model recommendation, bulk purchasing and catalog delivery for retail, multipurpose halls, conference rooms and live events.

Business hours: Monday to Friday 09:00 - 18:30
Inquiry channels: phone / email / website form
Tip: share budget, quantity and use scenario in advance

Harmonai ACT-750 Quad Wireless Microphone System product image

Product Overview

The Harmonai ACT-750 quad true diversity wireless microphone system is a premium wireless mic solution designed for professional live stages, conference systems, and KTV entertainment venues. Featuring dual-conversion superheterodyne reception technology and true diversity circuitry, it delivers stable and reliable signal transmission within a 500-meter range. The UHF 500–900 MHz wideband spectrum combined with 200 selectable channels offers flexible operation in complex electromagnetic environments. With a composite signal-to-noise ratio >110 dB and composite distortion ≤0.2%, it delivers exceptional vocal fidelity for a truly professional audio experience.

Receiver Architecture

Dual-conversion superheterodyne

Frequency Range

500–900 MHz

Number of Channels

200

Channel Spacing

200 kHz

Modulation

Wideband FM

Composite SNR

>110 dB

Composite Distortion

≤0.2%

Audio Response

40 Hz–18 kHz (±3 dB)

Dynamic Range

>105 dB

Sensitivity

12 dBμV (80 dB S/N)

Sensitivity Adjustment Range

10–32 dBμV

Spurious Rejection (Receiver)

≥95 dB

Peak Output Level

+10 dBV

Wireless Interface

BNC / 50 Ω

Input Power

5 W

Transmitter Output Power

20 mW

Frequency Stability

±0.005%

Peak Frequency Deviation

±45 kHz

Antenna Type

Handheld mic: built-in antenna / Bodypack transmitter: 1/4-wave whip antenna

Transmitter Power Supply

Two AA batteries (1.2–1.5 V)

Operating Temperature

−25 °C to +40 °C

Operating Distance

500 m (true diversity circuitry, environment-dependent)

Recommended Applications

Live Stage Performance: Quad configuration supports four performers simultaneously; true diversity reception eliminates dropouts and interference across large stages.
Conference Systems: Independent multi-channel operation suits medium-to-large conferences and forums; 200 channels enable flexible, interference-free allocation.
KTV Entertainment: High-fidelity sound reproduction captures vocal detail; the UHF wideband avoids interference from other wireless devices.
Outdoor Events: 500-meter transmission range meets long-distance requirements for outdoor performances and events; AA battery power ensures portability and extended runtime.

Learn more about the Harmonai ACT-750 quad true diversity wireless microphone system, or contact our professional team for a customized solution.