Definitive Audio Da UHF MH 400
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Manufacturer Information
Definitive Audio
https://www.definitiveaudio.co.uk
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The Versatility of a 4-Channel System for Stage and Events
This 4-channel wireless system is part of a line of professional solutions designed to multiply speaking opportunities with ease. Ideal when multiple speakers take turns, it combines a compact receiver and complementary transmitters to cover most needs on stage, at conferences, or in houses of worship.
Who Is It For and What Are Its Uses?
Designed for service providers, stage managers, associations, and educational institutions, this system is suitable for meetings, conferences, classes, services, karaoke, and small stages. Its multi-channel management reduces equipment changes and allows efficient organization of handheld microphones and bodypack transmitters according to each role.
Key Features and Advantages in the Field
The PLL synthesis ensures stable radio lock, while the FM modulation provides robust transmission. The silent control via audio code and noise lock minimizes unwanted noise during power on/off. The receiver's LCD + LED display facilitates reading essential status, and the transmitters' LCD screens help monitor transmission power and battery.
With a 50 Hz-18 kHz response and low distortion, the voice remains natural. The advertised range of 60 m covers most meeting rooms and small stages. Note: actual range will depend on absorption, reflection, and RF interference specific to each environment.
Technical specifications
| Category | Complete system | Capsule | dynamic |
| Directivity | cardioid | ||
| Type | Four-channel wireless microphone receiver | Dimensions (mm) | 410 (L) x 44 (H) x 210 (D) |
| Oscillation mode | PLL phase-locked loop frequency synthesis | Weight | 1.6 kg |
| Modulation mode | FM modulation | Compatibility | can be used with one transmitter |
| RF sensitivity | At 6 dBµV input, S/N > 80 dB | Pickup gain | fixed gain |
| Operating range | 60 m linear distance. Note: actual range depends on absorption, reflection, and RF signal interference and usage environment | Transmission power | up to 30 mW, depending on region |
| Silent control mode | audio code and noise lock | Current consumption | <130 mA |
| Built-in frequency response | 50 Hz to 18 kHz (+/- 3 dB) | Microphone type | module, coil type, cardioid head, cardioid pointing head |
| Built-in THD | <0.5% at 1 kHz | Sensor gain | adjustable gain |
| Display | LCD + LED | ||
Questions frequently asked
Does the Definitive Audio Da Uhf MH 400 support using four microphones simultaneously?
This system includes a four-channel wireless receiver, suitable for managing multiple speakers. It combines handheld and beltpack transmitters to organize different speakers.
What range does this wireless microphone system offer?
The announced range reaches 60 m in a straight line. This distance varies depending on obstacles, reflections, and RF interference present at the usage location.
Is this system suitable for a conference or a small stage?
The four-channel configuration meets the needs of conferences, classes, services, karaoke, and small stages. The PLL synthesis stabilizes the radio lock, while FM modulation ensures transmission. The receiver displays essential information on an LCD and LED screen.
What is the audio quality of the supplied microphones?
The cardioid dynamic capsule covers a frequency response from 50 Hz to 18 kHz, at +/- 3 dB. The total harmonic distortion is less than 0.5% at 1 kHz.
Do the transmitters display the battery status?
The transmitters feature an LCD screen indicating, among other things, the transmission power and battery status.
