OKAYO ELECTRONICS CO., LTD., a Taiwan-based manufacturer, was established in 1996 by a group of engineers who possessed extreme passion for wireless communication. We attempt to build reliable, durable and affordable products that help people live in a comfortable way based on different wireless technologies and solutions – Infrared, VHF, UHF, 2.4 GHz, Digital UHF and more. We also recognize that people around the world won’t have the same tastes so we work closely with global customers to build localized products that are dedicated for, of the country. With continuous efforts on marketing exploration, technology research, and quality improvement, Okayo makes itself a leading provider for Wireless Tour Guide Systems, Audio Guide Systems, Wireless Portable Sound System and Wireless Microphone Systems.

Infrared Soundfield System, IR Soundfield System, Classroom Soundfield System

OKAYO ELECTRONICS CO., LTD. strives to research and develop quality, energy-efficient GPA-500IR to benefit the consumers. We can manufacture 30W Dual-channel IR Soundfield System that meet specific requirements. Our first responsibility is to completely satisfy the needs of the people and organizations that use and distribute our products while providing the best value solutions for their 30W Dual-channel IR Soundfield System requirements. Customer service is another commitment we take seriously, our proven reputation and record of quality support won't leave you stranded.
GPA-500IR Dual-channel IR Soundfield System


30W Dual-channel IR Soundfield System

GPA-500IR Infrared Portable Sound System offers trouble-free wireless communication solution with infrared technology. Wherever you are in a classroom, boarder room, conference or training application, GPA-500IR allows unlimited number of channels to be operated concurrently and supports excellent sound amplification.

Specification :

  • Features
  • Specifications
  • Transmitters & Receivers
  • Chargers
  • Accessories
  • Download
  • 30W (RMS) output
  • Interference-free, eavesdrop-free. Best for confidential conventions
  • 15 ~ 20 meters operating range
  • High-fidelity of full-range speaker
  • AC or battery powered
  • Runs 3 ~ 4 hours on a charge
  • Versatile presentation – with Mic in, Aux out / in, it’s able to work with other audio source like MP3 / CD / iPod player and instruments.
  • Crystal-clear sound quality
Overall Specifications
Number of channel
2 channels (CH. A: 2.3 MHz / CH. B: 2.8 MHz)
Receiving system
TRF (Tuned Radio Frequency)
Maximum deviation
50 kHz, with level limiting
Tone squelch frequency
32.768 kHz
Dynamic range
110 dB
< 1%
Frequency response
70 Hz ~ 10 kHz (wireless)
Ambient temperature
-10°C ~ +50°C
Infrared Sensor Input
2 (F type connector)
Reception range
Approx. 20 m (at Hi) / 15 m (at Low) ; line-of-sight
Infrared Powered Speaker
Output power
30 Watt (RMS) @ 4Ω
5” full range
S/N ratio
> 70 dB
Receiver module
IR-501 or IR-502 (both work with IRS-10 sensor)
Audio intput
6.3mm-Mic in, 3.5mm-Aux in (stereo)
Controls volume
Wireless, Master, Tone, Mic, Aux
Frequency Response
50 Hz ~ 15 kHz (Aux input ~ Speaker output)
Power requirement
100 ~ 240 VAC / 18 VDC, 2.7 A switching power adaptor
12V, 2.9 Ah (Lead-Acid) rechargeable battery
Operation time
3 ~ 4 hours
charging time
4 ~ 6 hours
4.1 kg
Dimensions ( D x W x H)
260 x 210 x 290 (mm)

UM-501P (USB/SD)
Audio Player

Infrared Sensor

Infrared Sensor

Dust Cover


Wall Bracket


2900mA Lead-Acid Battery

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As one of the most reliable supplier in Taiwan, we supply 30W Dual-channel IR Soundfield System with the finest quality. We are the global leader in none. We develop, manufacture and distribute groundbreaking 30W Dual-channel IR Soundfield System that shatter the status quo and help customers gain and maintain a competitive edge. After knowing the above information, if you want to know more, please come to us. We will provide the information you need and offer high quality 30W Dual-channel IR Soundfield System to you at the best price.