Acemic D4 Wirless Double 640-690 Mhz

Features

Acemic D4

Reliable Dual-Channel UHF True Diversity Wireless Microphone System for Your Performances

The Acemic D4 wireless microphone system is a professional dual-channel UHF solution designed to deliver stable, clear, and reliable audio transmission for live performances, events, conferences, lessons, presentations, and public speaking.

Thanks to UHF technology, True Diversity reception, and advanced frequency management using PLL synthesis and microprocessor control, the Acemic D4 provides excellent signal stability while helping reduce the risk of interference and audio dropouts. With an operating range of up to 150 metres / 492 feet in line of sight, the system gives performers and presenters plenty of freedom of movement on stage or in the venue.
Clear Audio and Stable Wireless Transmission

The Acemic D4 combines advanced high-frequency transmission technology with noise suppression and squelch functions, designed to reduce unwanted noise and maintain a clean and consistent audio signal.

The True Diversity system with automatic frequency selection uses diversity reception to improve signal continuity and minimize audio interruptions during operation. The automatic channel scan function also makes setup quick and convenient.

The intuitive configuration, channel scanning and noise-control features make the D4 a practical choice for anyone looking for a dual-channel UHF wireless microphone system that provides reliable wireless transmission and freedom of movement.

The Acemic D4 receiver features two channels, allowing multiple compatible transmitters to be managed simultaneously. Its 50 MHz RF bandwidth and extensive selection of preset frequencies provide flexible configuration for different environments and applications.

The handheld transmitter features a dynamic cardioid microphone capsule, designed to provide clear vocal reproduction while helping reduce sound pickup from the sides and rear. With an operating time of approximately 7 hours using two AA batteries, the transmitter is suitable for extended sessions and performances.
Ideal for Stages, Conferences and Education

The Acemic D4 is suitable for:

• Live performances and concerts
• Presentations and public speaking
• Conferences and meetings
• Lessons and educational activities
• Theatre performances
• Churches and places of worship
• Events and live functions
• Speeches and wireless microphone applications

Main Features

• UHF wireless microphone system
• Dual-channel configuration
• True Diversity reception technology
• Operating range up to 150 m / 492 ft
• RF bandwidth: 50 MHz
• PLL frequency synthesizer
• Microprocessor-controlled frequency management
• Automatic channel scanning
• Squelch function
• Noise suppression technology
• 1U EIA rack-mount receiver
• Balanced XLR and unbalanced 6.3 mm jack outputs
• Handheld transmitter with dynamic cardioid capsule
• Transmitter power supply: 2 × AA batteries
• Battery life: approximately 7 hours

Technical Specifications – Receiver

• Model: Acemic D4
• Type: UHF True Diversity wireless system
• Channels: 2
• Frequency range: UHF 600–937 MHz, depending on region
• Receiver frequency range: UHF 640–690 MHz
• Frequency stability: ±0.005%
• Preset frequencies: 200
• Bandwidth: 50 MHz
• Maximum deviation: ±45 kHz
• Signal-to-noise ratio: >105 dB
• THD: <0.7% at 1 kHz
• Frequency response: 45 Hz–18 kHz (±3 dB)
• Power supply: 100–240 V AC, 50/60 Hz
• Connectors: Balanced XLR + 6.3 mm jack
• Dimensions: 285 × 185 × 45 mm
• Weight: 2.25 kg

Technical Specifications – Handheld Transmitter

• Type: UHF wireless handheld microphone transmitter
• Frequency range: UHF 640–690 MHz
• Bandwidth: 50 MHz
• Maximum deviation: ±45 kHz
• Microphone capsule: Dynamic
• Polar pattern: Cardioid
• RF output power: 3 mW
• Power supply: 2 × AA batteries
• Current consumption: 150 mA
• Battery life: approximately 7 hours
• Dimensions: Ø 51 × 270 mm
• Weight: 350 g