Harmonai GP-224 Quad-Channel Wireless Conference Microphone System

The Harmonai GP-224 is a professional quad-channel wireless conference microphone system using superheterodyne reception and PLL frequency synthesis. Each channel offers 50 selecta...

$158.29

Model: GP-224
Category: Microphones
Images: 4 images
Status: ready

Product Brief

Harmonai GP-224 Quad-Channel Wireless Conference Microphone System

Overview

The Harmonai GP-224 is a professional quad-channel wireless conference microphone system using superheterodyne reception and PLL frequency synthesis. Each channel offers 50 selecta...

Price: $158.29
Model: GP-224
Category: Microphones

Specifications

Parameter

Value

Receiver Specifications

Number of Channels: Quad-channel; Reception Method: Superheterodyne reception; Operating Frequency: 640–690 MHz; Carrier Frequency Band: 470–960 MHz; Stackable Systems: 5 systems (for simultaneous use); Frequencies per Channel: 50 groups; Mirror Image Rejection: 45 dBm; RF Sensitivity: S/N ≥ 45 dB at 10 dBu input; Display: 2.0-inch TFT full-color display; Frequency Synchronization Method: IR infrared; Output Level: LINE: 0.5 Vpp; Output Level Adjustment Range: 30-step adjustable, attenuation-type, 1 dB per step; Power Supply: DC 12 V / 1 A; Normal Operating Current: DC 12 V: 600 mA; Operating Distance: ≥60 meters (in ideal conditions); Power Consumption: 10 W; Dimensions (mm): 485 L × 240 W × 45 H; Net Weight: 2 kg; Color: Black; Mounting Method: EIA standard 1U rack-mount. Conference Base Transmitter: Operating Frequency: 640–690 MHz; Carrier Frequency Band: 470–960 MHz; Oscillation Method: PLL frequency synthesis; Display: 2.47-inch LCD display; Transmit Power: 13.5 dBm; Carrier Frequency Error: 0.005%; Harmonic Radiation: −32 dBm; Modulation Method: FSK; Nominal/Maximum Frequency Deviation: ±65 kHz; Input Level: 250 mV; Input Impedance: 2.2 kΩ; Frequency Setting: Infrared sync pairing; Power Supply: AA 1.5 V × 3; Normal Operating Current: AA battery powered: 150 mA; Battery Life: ≥10 hours; Operating Temperature: −10 °C to +40 °C; Antenna: Helical antenna; Net Weight: 0.82 kg; Color: Black; Mounting: Desktop

Service Support

We support project consultation, model recommendation, bulk purchasing and catalog delivery for retail, multipurpose halls, conference rooms and live events.

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Tip: share budget, quantity and use scenario in advance

Product Overview

The Harmonai GP-224 is a professional quad-channel wireless conference microphone system designed for meeting rooms, auditoriums, and training classrooms. The system consists of a 1U rack-mountable quad-channel receiver and desktop-style conference base transmitters. It employs superheterodyne reception and PLL frequency synthesis oscillator technology to ensure stable signal transmission and strong interference resistance. Each channel offers 50 selectable frequencies, supporting up to 5 stacked systems simultaneously (20 channels maximum). IR infrared sync pairing simplifies setup and improves efficiency. The receiver features a 2.0-inch TFT full-color display, while the transmitter uses a 2.47-inch LCD screen for clear status visibility. Powered by AA batteries, the system delivers up to 10 hours of continuous operation. A 30-step output level adjustment (1 dB per step) ensures seamless integration with diverse sound reinforcement systems.

Number of Channels

Quad-channel

Reception Method

Superheterodyne reception

Operating Frequency

640–690 MHz

Carrier Frequency Band

470–960 MHz

Stackable Systems

5 systems (for simultaneous use)

Frequencies per Channel

50 groups

Mirror Image Rejection

45 dBm

RF Sensitivity

S/N ≥ 45 dB at 10 dBu input

Receiver Display

2.0-inch TFT full-color display

Frequency Synchronization Method

IR infrared sync

Output Level

LINE: 0.5 Vpp

Output Level Adjustment

30-step adjustable, attenuation-type, 1 dB per step

Receiver Power Supply

DC 12 V / 1 A

Receiver Operating Current

DC 12 V: 600 mA

Operating Distance

≥60 meters (in ideal conditions)

Receiver Power Consumption

10 W

Receiver Dimensions (L × W × H)

485 × 240 × 45 mm

Receiver Net Weight

2 kg

Receiver Mounting Method

EIA standard 1U rack-mount

Transmitter Type

Conference base type

Transmitter Oscillation Method

PLL frequency synthesis

Transmitter Display

2.47-inch LCD display

Transmit Power

13.5 dBm

Carrier Frequency Error

0.005%

Harmonic Radiation

−32 dBm

Modulation Method

FSK

Nominal/Maximum Frequency Deviation

±65 kHz

Input Level

250 mV

Input Impedance

2.2 kΩ

Transmitter Frequency Setting

Infrared sync pairing

Transmitter Power Supply

AA 1.5 V × 3

Transmitter Operating Current

AA battery powered: 150 mA

Battery Life

≥10 hours

Operating Temperature

−10 °C to +40 °C

Antenna Type

Helical antenna

Transmitter Net Weight

0.82 kg

Transmitter Mounting Method

Desktop

Typical Applications

The Harmonai GP-224 quad-channel wireless conference microphone system is suitable for various small-to-medium-sized meeting environments. Its quad-channel architecture and support for stacking up to 5 systems enable flexible deployment—from 10-person roundtable meetings to auditoriums seating over 100 attendees. The desktop-style base transmitter is ideal for fixed seating arrangements; IR infrared pairing enables rapid setup, and the AA battery power option eliminates cable clutter. Widely used in corporate meeting rooms, government auditoriums, university training classrooms, hotel conference halls, and courtroom hearing rooms.

Contact the Harmonai professional team for more product details or customized conference audio solutions.