Chiayo LECTERN PRO UHF, active conference lectern with microphones

INFORMACIJA

Chiayo LECTERN PRO UHF – a professional conference lectern designed for presentations, lectures, conferences, and events. An integrated 250 W amplifier, a five-speaker system, two gooseneck microphones, and a rechargeable battery allow the lectern to be used without additional audio equipment. Wheels facilitate transportation, and the ability to expand the system with wireless microphones and media modules provides extra flexibility.

Power: 250 W RMS
Amplifier: Class D
Speakers: 4 × 5" + 1 × 1"
Frequency range: 50 Hz–20 kHz
Microphones: 2 integrated gooseneck condenser microphones
Wireless connectivity: Bluetooth, optional UHF modules
Battery life: up to 15 hours
Charging time: approx. 6 hours

DESCRIPTION

Integrated wireless presentation system
LECTERN PRO

A fully autonomous sound reinforcement system featuring an integrated high-performance speaker array, a Class D amplifier, and a wireless microphone system. It is designed for independent use in corporate settings, educational institutions, hotels, and event spaces, without the need for additional external audio equipment.

System type: active speaker array
Output power: 250 W RMS
Speakers: 4 × 5″ woofers + 1 × 1″ tweeter
Operating time: up to 15 hours of speech
Dimensions: 600 × 400 × 1200 mm

250 W
Class D amplifier

15 hours
Battery life

5.1
Speaker system

3
Expansion slots

Sound capture system
Optimized sound reinforcement for presentations

The system is designed for quick setup. The "Lectern Pro" comes with two integrated gooseneck condenser microphones, ensuring high-quality and clear voice pickup.

The system can support up to two UHF wireless receivers simultaneously, making it perfect for multi-speaker discussions, Q&A sessions, and audience engagement without the need for an external mixing console.

Two microphones: telescopic gooseneck microphones with an individual mute switch.
UHF wireless: compatible with optional handheld or bodypack wireless microphones.
IrDA synchronization: infrared link for quick and precise wireless channel selection.
Lighting: integrated LED reading lamp.
Acoustic performance
Active speaker array dispersion

The system operates with an efficient Class D amplifier, and an active frequency crossover distributes the signal to a precisely tuned five-speaker array.

This design ensures controlled vertical sound dispersion and wide horizontal sound coverage. This helps maintain clear speech reproduction and reduces the likelihood of acoustic feedback.

250 W RMS power: constant output power at 8 Ω load.
Frequency response: 50 Hz–20 kHz (±3 dB).
Low distortion: total harmonic distortion less than 0.5% at nominal power.
Audio output: XLR active output for connecting additional active speakers.
Power and autonomous operation
Long operation off the power grid

The system is adapted for use in locations without convenient access to a power grid. The integrated power system can be equipped with LiFePO4 (lithium iron phosphate) batteries, which feature excellent thermal stability, durability, and long operating time.

LiFePO4 technology: up to 15 hours of speech or up to 13 hours of music playback.
Charging: fully rechargeable from a 100–240 V mains in approximately 6 hours.
Battery status display: four-stage LED indicator.
Mobility: reinforced base with sturdy, lockable wheels.
System architecture
Configurable module slots

The housing is equipped with three universal expansion slots, allowing system functions to be adapted to specific needs. Additional modules are inserted easily, eliminating the need for soldering or modifying the device housing.

SLOTS 01 AND 02
UHF wireless receiver

Compatible with SDR-8200M and SDR-8100M modules. Supports automatic channel scanning and infrared synchronization with the transmitter.

SLOT 03
Digital media module

The DPR-500M module allows for direct audio recording to USB or SD media and playback of MP3 audio files.

OPTIONAL
Wireless audio transmission module

The RP-5100M module allows for wireless transmission of the main audio signal to additional active speakers.

OPTIONAL
Digital receiver

The DWR-5410M module provides more reliable wireless connectivity in challenging radio frequency environments.

Package contents
What's in the box?

The "Lectern Pro" base unit is ready for use. Expansion slots are left empty as standard unless additional modules are ordered separately.

Standard package
Main "Lectern Pro" unit with amplifier and speakers
2 × gooseneck condenser microphones, pre-installed
Integrated LED reading lamp
Internal rechargeable battery system – LiFePO4 or SLA, depending on the version
Sturdy lockable wheels
Universal power and charging cable
Optional accessories
UHF wireless receiver modules
Wireless handheld or bodypack microphones
Digital USB/SD media player module
Wireless audio transmission module

TECHNICAL DATA

System specifications
Acoustics and amplification    
Output power    250 W RMS, Class D amplifier, 8 Ω load
Speaker system    4 × 5″ woofers, 1 × 1″ tweeter, active internal crossover
Frequency response    50 Hz–20 kHz (±3 dB)
Total harmonic distortion    < 0.5 % at nominal power
Inputs and outputs    
Analog inputs    2 × balanced XLR microphone inputs, 1 × combo 6.3 mm / XLR microphone or line input, 1 × 3.5 mm stereo line input
Wireless audio input    Bluetooth
Audio output    1 × balanced XLR active output for additional speakers
Power supply    
Mains power    100–240 V AC / internal 30–32 V DC, 4 A
LiFePO4 battery    2 × 12 V / 5.6 Ah; up to 15 hours of speech / 13 hours of music; charging approx. 6 hours
SLA battery    2 × 12 V / 5 Ah; up to 14 hours of speech / 12 hours of music; charging approx. 5 hours
Construction    
Dimensions (W × D × H)    600 × 400 × 1200 mm
Weight    24.38 kg – LiFePO4 version / 26.82 kg – SLA version
Housing material    Aluminum alloy column, fiberglass-reinforced plastic base and top

Recommended use cases

Corporate conference centers
University lecture halls
Hotels and banquet halls
Exhibitions and trade shows
Houses of worship
Public and outdoor ceremonies

Professional audio equipment | Precision engineering

Technical characteristics are subject to change without prior notice. Additional modules and accessories are sold separately.

DOCUMENTS

User manual (EN)