Audibax Missouri 2500 A - Dual VHF Wireless Microphone System with 2 Lavalier and 2 Headset Microphones (Diversity Antennas)
The Audibax Missouri 2500 A is a professional VHF wireless system designed for presentations, events, teaching, and stage use. It includes two bodypacks with gain control, two lavalier microphones, and two headset microphones , offering versatility for spoken word and mobile performances. It employs diversity antennas for more stable reception and quartz control for highly accurate frequency tuning. Its dual receiver features integrated RF/AF indicators and balanced XLR outputs per channel, as well as a 6.35 mm combo output , facilitating connection to mixing consoles, powered speakers, or AV systems. Operating in the A band (179.300 / 188.100 MHz), it offers a range of up to approximately 80 meters , with excellent signal-to-noise ratio and low distortion, ensuring clear, artifact-free voice quality.
Main features
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Dual VHF system : 2 independent channels with beltpacks and gain control on each one.
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Two microphone options : 2 lavalier + 2 headset (madonna) included.
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Cardioid dynamic capsule in the lavalier and headset microphones for focused voice capture.
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Diversity antennas for greater wireless signal stability.
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Quartz control for frequency stability.
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Dual receiver with display , RF/AF indicators and independent volumes per channel.
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Outputs : Balanced XLR and 6.35 mm mixed output (jack) on the receiver.
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Operating frequencies (A) : 179,300 MHz and 188,100 MHz.
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Frequency response : 40 Hz – 18 kHz; THD < 0.5%; S/N > 103 dB; Sensitivity –105 dB.
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Power supply : battery packs with 2 AA batteries; 230V AC receiver.
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Range : up to 80 m (approx.), under optimal line of sight conditions.
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Controls on the beltpack : on/off switch and mute , gain adjustment for microphones.
Product benefits
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Total versatility : combines lavalier for discretion and headband for maximum hold and projection while moving.
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Wireless stability : Antenna diversity and quartz control minimize dropouts and frequency variations.
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Easy integration : XLR outputs per channel and 6.35mm mixed output to fit mixers and PA equipment.
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Clean audio : 40 Hz–18 kHz range, low distortion and high signal-to-noise ratio for clear and natural voice.
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Independent management : separate volumes on the receiver and gain on each beltpack to easily balance two voices.
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Practical autonomy : operation with standard AA batteries in transmitters for quick replacement.
Use cases
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Corporate events and presentations : speakers with lavalier headphones and attendees with headbands.
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Group classes and gyms : stable headband for instructors on the move.
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Theatre and stages : discreet microphones for actors and artists.
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Conferences and houses of worship : two simultaneous channels with independent adjustment.
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Audiovisual content : interviews and recordings with wireless mobility.
Frequently Asked Questions
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Can I use two microphones at the same time?
Yes. The system is dual and allows two transmitters to operate simultaneously with independent volume control on the receiver.
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What outputs does the receiver offer?
It features balanced XLR outputs and a 6.35 mm mixed output to combine both channels.
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What is the battery life of the flasks?
It depends on the type of AA batteries used and the environment. Since they are standard AA batteries, replacement is immediate.
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Is it suitable for singing?
It's optimized for spoken word , fitness, and presentations. For demanding solo vocals, a dedicated UHF system or more sensitive capsules may be considered depending on the environment.
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What is the actual coverage?
Up to approximately 80 m in line of sight and under favorable radio frequency conditions. Obstacles, other RF sources, and metallic structures may reduce this range.
Connection and start-up
- Connect the antennas to the receiver and select either the XLR output per channel or the 6.35 mm mixed output depending on your system.
- Insert new AA batteries into each battery pack and adjust the gain to avoid saturation.
- Position the lavalier 15–20 cm from your mouth or use the headband for greater ambient noise rejection.
- Avoid nearby sources of interference (power racks, routers, metal structures).
Package contents
- 1 dual receiver with display and RF/AF indicators
- 2 beltpacks with gain control, on/off and mute
- 2 lavalier microphones
- 2 headset microphones
- 1 jack-to-jack audio cable
Project description
Dual VHF wireless system, Frequency A: 179.300 / 188.100 MHz. Dual receiver with display, RF/AF indicators, independent volume controls, balanced XLR outputs, and a 6.35 mm mixed output. Two bodypack transmitters with gain control, on/off switch, and mute. Includes two lavalier microphones and two headset microphones with cardioid dynamic capsules. Frequency response: 40 Hz–18 kHz, THD < 0.5%, S/N > 103 dB, sensitivity –105 dB. Bodypack power: 2 x AA batteries; receiver: 230 V AC. Range up to 80 m (approx.). Diversity antennas and quartz crystal control.
