AKG WMS4500 HC577 L Set Headset Wireless Microphone System

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Product Description

The AKG WMS4500 HC577 L Set Headset Wireless Microphone System is for all situations needing absolute freedom of movement, like live stage shows or presentations.
The HC577 L is an extremely small reference head-worn microphone, designed for on-stage use. The microphone uses a CK77 omni-directional transducer that has been an industry standard for lavalier capsules for years and ensures superior audio performance.

A patented body design protects the microphone from moisture and perspiration. The capsule uses the signal of two vertical diaphragms mounted back-to-back, mixed out of phase to cancel out mechanical and cable noise.

AKG WMS4500 HC577 L Set Headset Wireless Microphone System Features:

  • Adjustable headband and left/right selectable boom for maximum comfort and flexibility
  • Interchangeable capsule module for quick and easy service
  • Dual-diaphragm transducer for suppression of cable noise
  • Resistant to moisture, perspiration and salts withstands sudorific stage performances
  • Omnidirectional polar pattern for unchanging sound quality in all directions

AKG WMS4500 HC577 L Set Includes:
  • 1 - PT4500 pocket transmitter
  • 1 - SR4500 receiver
  • 1 - HC577 L fleshtone head-worn microphone

1 belt clip, 2 AA size batteries, 2 antennas, 1 rack mounting kit and power supply.

PT4500 Pocket Transmitter
The PT4500 is a bodypack transmitter with a rugged aluminum body. The 30 MHz wide UHF band provides up to 1200 selectable frequencies, and several preset frequency banks for various countries help you set up a multi-channel system very quickly.

A backlit display makes it very easy to tune the PT4500 to the same frequency as the SR4500 receiver. A pilot tone system continuously sends transmitter data including MUTE switch position and remaining battery life to the receiver. Integrated charging contacts let you charge the optional BP4000 battery pack without having to remove it from the transmitter. After only one hour, the battery pack will be fully charged and you can use the transmitter for 12 hours continuously. The 3-pin mini XLR input with adjustable gain accommodates both portable instruments and a variety of AKG microphones for every application.

PT4500 Pocket Transmitter Features:
  • Bodypack transmitter with rugged aluminum body
  • 30 MHz wide UHF band, up to 1200 selectable frequencies
  • Backlit display and jog switch for ease of use
  • Up to 50 mW RF output for maximum immunity to interference and dropouts
  • Operates for up to 15 hours on AA size dry batteries, 12 hours on optional BP4000 battery pack with integrated Smart Battery Management System

SR4500 Receiver:
The SR4500 true diversity receiver provides maximum ease of use and the widest range of functions in its class. Its accurate battery life readout is a previously unavailable, invaluable advantage in live sound applications. A complete line of accessories makes the SR4500 your first choice for every application. The transmitter uses a pilot tone to transmit battery status data to the receiver that displays the remaining battery capacity. The pilot tone decoder also allows the detection and display of other important information including the current position of the transmitter MUTE switch.

Auto Setup and Environment Scan functions automatically analyze the local RF environment, find usable frequency groups, and set frequencies. The optional HUB4000 Q integrates the SR4500 into a HiQnet® system. With the PC control software System Architect™ setting up and monitoring highly complex systems is incredibly easy. A logic output allows remote control of external devices, e.g., an automatic microphone mixer.

Naturally, the SR4500 operates in an extremely wide UHF band (30 MHz) and each frequency preset provides up to 19 intermodulation-free channels. The maximum number of selectable frequencies is 1200. Using several frequency bands allows you to operate as many as 70 channels simultaneously. A large, backlit color display and a jog wheel make the SR4500 easy to use and a programmable LED ring indicates important system parameters at a glance.

Housed in a half-rack, all-metal case, the SR4500 is the most compact, reliable, and powerful UHF receiver in its price bracket.

SR4500 Receiver Features:
  • True diversity receiver with all-metal case
  • Available in 8 UHF bands, 30 MHz wide each with up to 1,200 selectable frequencies
  • Using several frequency bands allows up to 70 channels to be operated simultaneously
  • Transmitter battery status monitoring and tone code squelch
  • Auto Setup, Environment Scan, and Rehearsal functions for quick and easy setup
  • Backlit, programmable color display and jog wheel with selectable warning signal for ease of use
  • Output for controlling external devices
  • Integrated data interface for controlling and monitoring from a PC via System Architect™

HC 577 L Fleshtone Head-Worn Microphone
The HC 577 L uses dual-ear temple pieces for extreme stability and optimum comfort.

The new AKG HC 577 L has been designed to be invisible in the limelight. It is so small it will virtually disappear on stage or on camera, while providing perfect mobility and pristine audio quality.

A patented body design protects the microphone's dual-diaphragm transducer from moisture and perspiration. Mechanical noise, cable noise, etc. are reduced to a minimum. The microphone uses a CK 77 omnidirectional transducer that has been an industry standard for lavalier capsules for years and ensures superior audio performance.

HC 577 L Fleshtone Head-Worn Microphone Features:
  • Excellent comfort
  • Insensitive to moisture, perspiration, and salts
  • Dual-diaphragm transducer for cable noise suppression
  • Compatible with all standard wireless systems

Consumer Alert (for US users)
Most users do not need a license to operate this wireless microphone system. Nevertheless, operating this microphone system without a license is subject to certain restrictions: The system may not cause harmful interference; it must operate at a low power level (not in excess of 50 milliwatts); and it has no protection from interference received from any other device.
Purchasers should also be aware that the FCC is currently evaluating use of wireless microphone systems, and these rules are subject to change. For more information, call the FCC at 1-888- CALL-FCC (TTY: 1-888-TELL-FCC) or visit the FCC’s wireless microphone website at www.fcc.gov/cgb/wirelessmicrophones.

Product Specifications
HC 577 L Specifications:
Polar pattern: Omnidirectional
Frequency range: 20 Hz to 20 kHz
Sensitivity: 8 mV/Pa (–42 dBV)
Max. SPL: 133 dB (for 1% THD)
Equivalent noise level (IEC 60268-4, A-weighted): 26 dB-A
Signal/noise ratio (A-weighted): 68 dB
Impedance: <=3.5 kohms
Recommended load impedance: >=10 kohms
Supply voltage: 1.5 V to 12 V
Powering: <=0.6 mA
Connector: 3-pin mini XLR
Cable: 1.5 m (5 ft.)
Finish: Flesh tone
Dimensions: 205 mm (8.1 in.), max. diameter: 145 mm (5.7 in.)
Net weight: 28 g (0.99 oz.)
Shipping weight: 150 g (5.3 oz.)

PT4500 Specifications:
Carrier frequency range: 500 to 530, 570 to 600, 650 to 680, 680 to 710, 720 to 750, 760 to 790, 790 to 820, 835 to 863 MHz
Audio bandwidth: 35 to 20,000 Hz
THD: <0.3% typical
Signal/noise ratio: >120 dB(A) typical
Modulation: FM
RF radiation: max. 50 mW (ERP)
Battery life: 2 AA size dry batteries: 15 hours typ.; BP 4000 rechargeable battery pack: 12 hours typ.
Dimensions: 70 x 90 x 25 mm (2.8 x 3.5 x 1 in.)
Net weight: 95 g (3.4 oz.)
Patent(s): Remaining battery life (Patent no. AT 408.280, GB 2.349.230, US 6,344,730)

SR4500 Specifications:
Carrier frequency range: 500 to 530, 570 to 600, 650 to 680, 680 to 710, 720 to 750, 760 to 790, 790 to 820, 835 to 863 MHz
Audio bandwidth: 35 to 20,000 Hz
THD: <0.3% typical
Signal/noise ratio: >120 dB(A) typical
Modulation: FM
Audio outputs: balanced 3-pin XLR; unbalanced TS 1/4" jack; output level adjustable to -30, 0, +6 dB
Dimensions: 200 x 44 x 190 mm (7.8 x 1.7 x 7.4 in.)
Net weight: 972 g (2.2 lbs.)
Patent(s): Remaining playing time (Patent no. AT 408.280, GB 2.349.230, US 6.344.730)
Helpful Info about the Manufacturer
Phone:  818-920-3212 Warranty:  2 Year
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