AKG WMS420 Headworn Set A - 530 to 559MHz Analog Wireless Microphone System with SR420 Receiver/PT420 Bodypack Transmitter and C555 L Headset Microphone in Black Finish

The AKG WMS420 UHF Wireless Headworn Microphone System is specifically designed for live sound reinforcement applications, including public address, presentations, installations, and performances. With the capability to operate up to eight systems simultaneously within a 30 MHz bandwidth, this system is perfect for both small and larger-scale events, offering clear and reliable audio. The system includes the PT420 Beltpack Wireless Transmitter, SR420 UHF Stationary Receiver, C555 L headworn microphone, and additional accessories like detachable RF antennas and a universal AC power adapter.

The SR420 Stationary Receiver operates within the 530 to 559 MHz frequency range (Band A), offering stable and high-quality wireless transmission. It uses antenna switching diversity to ensure a strong and reliable signal. The receiver features a front panel with intuitive controls, including an on/off button, rotary volume control, frequency selection button, and an LCD display for easy channel monitoring. The RF OK LED lights up when a signal is present, and the CLIP LED alerts users when the audio level is too high, providing clear visual feedback. On the back panel, users will find a squelch control knob that helps automatically mute the audio output if the RF signal weakens, ensuring optimal sound quality at all times. The SR420 also includes a balanced XLR output for connecting to mixers and an unbalanced 1/4" output for direct connection to amplifiers or instruments.

The PT420 Bodypack Transmitter, included in the set, is designed for hands-free use and offers a 3-pin mini-XLR input for connection with AKG's wide range of microphones, including the included C555 L headworn microphone. This transmitter features a noiseless On/Off/Mute switch and a gain control knob, allowing users to adjust the input volume. Powered by a single AA battery, the PT420 operates for up to 8 hours, offering reliable performance during long events or sessions. The transmitter also includes LED status indicators, allowing for real-time monitoring. Additionally, it has charging contacts for use with rechargeable batteries and AKG's CU400 rechargeable base station (sold separately).

The C555 L headworn microphone features a pre-polarized condenser capsule with a cardioid polar pattern, offering excellent rejection of unwanted ambient noise while providing high-quality audio capture. The microphone is specifically designed for clear, intelligible speech, making it perfect for presenters, performers, and lecturers. The C555 L microphone has a frequency range of 80 Hz to 20,000 Hz and boasts a sensitivity of 25 mV/Pa, ensuring high-fidelity sound capture with minimal noise. The lightweight design and secure fit make it comfortable to wear for extended periods.

With its reliable wireless technology, easy setup, and long battery life, the AKG WMS420 UHF Wireless Headworn Microphone System is the perfect choice for demanding audio environments where clarity, flexibility, and portability are essential.

Features

• 530 to 559 MHz frequency range (Band A) for reliable wireless transmission
• Dual-channel operation with the PT420 bodypack transmitter and C555 L headworn microphone
• Up to 8 hours of operation on a single AA battery for the bodypack transmitter
• High-quality audio with a signal-to-noise ratio of 105 dB-A and low total harmonic distortion (0.8%)
• Front panel features an LCD display, frequency selection, and visual indicators for RF and audio clipping
• Two detachable RF antennas for connection to external RF accessories like antenna splitters or directional antennas
• Receiver features balanced XLR and unbalanced 1/4" outputs for flexible connection to audio equipment
• Adjustable squelch control to mute the audio output when the RF signal weakens
• C555 L headworn microphone with cardioid polar pattern for excellent noise rejection
• Microphone frequency range of 80 Hz to 20,000 Hz, ensuring clear, intelligible speech
• Universal power supply with adapters for US, UK, and EU outlets
• Receiver dimensions: 5.91 x 1.73 x 7.87 inches, weight: 0.79 lbs
• Bodypack transmitter dimensions: 2.36 x 2.97 x 1.18 inches, weight: 0.47 lbs
• Includes AC adapter, AA battery, windscreen, antennas, and more

Specifications

SR420 Receiver

• Frequency Bands: 530.025 - 559 MHz (Band A)
• Diversity System: Antenna switching
• RF Output: 10, 20 or 50 mW (depending on frequency band)
• Audio Bandwidth: 40 - 20000 Hz (+/- 3 dB)
• Tuning Range: Up to 30 MHz
• Max. Channels: Up to 8 compatible channels within one frequency band
• Frequency Selection: Fixed frequencies
• Modulation: FM
• Radio Range (Line of Sight): 30 meters (with external antennas further distances achievable)
• Rack Size: 1/2 Racksize (19")
• Dimensions: 5.91 x 1.73 x 7.87 inches

PT420 Bodypack Transmitter

• Type: Three pin mini XLR connector (female)
• Maximum Audio Level: 12 dB
• Rated Impedance: 1 Ohm
• Audio Bandwidth: 40 - 20000 Hz (+/- 3 dB)
• Signal to Noise: 105 dB-A
• THD at 1 kHz: 0.8%
• Transmitter Synchronization: Manual
• Battery Type: AA battery (LR6 AA alkaline or HR6 AA NiHM rechargeable)
• Operating Time: Up to 8 hours with one AA battery
• Dimensions: 2.36 x 2.97 x 1.18 inches
• Weight: 0.47 lbs

C555 L Microphone

• Type: Pre-polarized condenser microphone
• Polar Pattern: Cardioid
• Frequency Range: 80 - 20000 Hz
• Sensitivity: 25 mV/Pa
• Impedance @ 1kHz: <200 Ohms
• Recommended load impedance: >2000 Ohms
• Max SPL for 1% THD: 120 dB
• Equivalent noise level: 30 dB-A
• Signal to Noise: 63 dB-A
• Recommended Serial Resistor: 10 kOhm
• Current: <2 mA
• Voltage: 9V (2V - 10V)
• Audio Output: 3-Pin Mini XLR Female (5ft)
• Finish: Matte black
• Dimensions: 7.6 x 5.3 inches
• Weight: 0.05 lbs

What's Included

• 1 x Bodypack transmitter PT420
• 1 x Stationary receiver SR420
• 1 x Head-worn microphone C555 L
• 1 x Windscreen W444
• 2 x Receiver antennas
• 1 x AC adapter
• 1 x AA size battery