11. Specifications

11.1. WMS 61

 

HT 61

 

PT 61

 

SR 61

Carrier frequency

 

138 to 142 MHz/169 to 250 MHz

 

Modulation

 

 

FM

 

Audio bandwidth

 

 

50 to 20,000 Hz

 

Frequency stability (-10°C to +50°C)

±10 ppm

 

 

Rated deviation

30 kHz (22.5 kHz AM)

 

 

T.H.D. at 1 kHz

 

<0.8%

 

<0.5%

Compander

 

 

Yes

 

Signal/noise ratio

typ. 50 dB(A)

 

>100 dB(A)

Limiter

 

Yes

 

 

RF output

 

10 mW

 

 

Current consumption

typ. 150 mA

 

170 mA

 

220 mA

Power requirement

2x1.5 V AA size batteries

 

120/230 V AC, 50/60 Hz

Battery life

>12 hours

 

>10 hours

 

 

Input sensitivity

 

 

 

 

typ. -95 dBm

Audio input level for rated deviation

350 mV/1 kHz

 

1400 mV/1 kHz

 

 

Input impedance

220 kΩ

 

220 kΩ//660 pF

 

 

Condenser microphone power supply

 

 

6 V/6,8 kΩ on pin 3

 

 

Squelch threshold

 

 

 

 

-95 dBm (fixed)

Pilot tone

32.678 kHz

 

32.678 kHz

 

 

Audio output

 

 

 

 

balanced XLR: switchable be

 

 

 

 

 

tween microphone and line

 

 

 

 

 

levels; typ. 30 dB

 

 

 

 

 

unbalanced XLR: 6 dBm

 

 

 

 

 

unbalanced 1/4” jack: 0 dBm

Size (WxDxH)

240 x 36 dia. mm (9.4 x 1.4 in.)

 

92 x 65 x 20 mm (3.6 x 2.6 x 0.8 in.)

 

210 x 170 x 42 mm (8.3 x 6.7 x 1.7 in.)

Net weight

245 g (8.7 oz.)

 

76 g (2.7 oz.)

 

470 g (16.6 oz.)

11.2. WMS 81

 

HT 81

 

PT 81

SR 81

Carrier frequency

 

 

710 to 869 MHz

 

Modulation

 

 

FM

 

Audio bandwidth

 

 

50 to 20,000 Hz

 

Frequency stability (-10°C to +50°C)

±10 ppm

 

Rated deviation

 

30 kHz

 

T.H.D. at 1 kHz

 

<0.5%

<0.4%

Compander

 

 

Yes

 

Signal/noise ratio

typ. 50 dB(A)

>100 dB(A)

Limiter

 

Yes

 

RF output

 

10 mW

 

Current consumption

typ. 170 mA

 

180 mA

240 mA

Power requirement

2x1.5 V AA size batteries

120/230 V AC, 50/60 Hz

Battery life

>10 hours

 

>8 hours

 

Input sensitivity

 

 

 

typ. -95 dBm

Audio input level for rated deviation

350 mV/1 kHz

 

1400 mV/1 kHz

 

Input impedance

220 kΩ

 

220 kΩ//320 pF

 

Condenser microphone power supply

 

 

6 V/6,8 kΩ on pin 3

 

Pilot tone

32.678 kHz

 

32.678 kHz

 

Squelch threshold

 

 

 

-95 dBm (fixed)

Audio output

 

 

 

balanced XLR: switchable be

 

 

 

 

tween microphone and line

 

 

 

 

levels; typ. 30 dB

 

 

 

 

unbalanced XLR: 6 dBm

 

 

 

 

unbalanced 1/4” jack: 0 dBm

Size (WxDxH)

240 x 36 dia. mm (9.4 x 1.4 in.)

 

92 x 65 x 20 mm (3.6 x 2.6 x 0.8 in.)

210 x 170 x 42 mm (8.3 x 6.7 x 1.7 in.)

Net weight

245 g (8.7 oz.)

 

76 g (2.7 oz.)

470 g (16.6 oz.)

 

 

 

 

 

This product conforms to ETS 300.422 and ETS 300.445 as well as Parts 15 (receiver), 74, and 90 (traveler) of the FCC Rules.

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AKG Acoustics WMS 81, WMS 61 manual Specifications, Wms

WMS 61, WMS 81 specifications

AKG Acoustics is renowned for its excellence in audio equipment, and their wireless microphone systems, particularly the WMS 81 and WMS 61, are prime examples of their commitment to quality and innovation. Both models offer a range of features designed to meet the needs of performers and audio professionals alike.

The AKG WMS 81 is a high-end wireless microphone system that excels in versatility and sound quality. It operates in the UHF frequency range, ensuring minimal interference and reliable signal transmission over long distances. One of its standout features is the adaptive diversity receiver, which helps eliminate dropouts and ensures a clear, consistent sound. The WMS 81 also incorporates automatic frequency selection, allowing for quick setup and optimal performance in any environment.

An important characteristic of the WMS 81 is its exceptional audio quality. The system utilizes advanced audio processing technologies, which include high-frequency response and low noise levels. This results in clearer and more articulate sound reproduction, whether for live performances or professional presentations. The microphone capsules are designed to capture a wide dynamic range, making them suitable for vocalists and instrumentalists alike.

On the other hand, the AKG WMS 61 is designed with simplicity and reliability in focus. It offers a more cost-effective solution while still incorporating quality features. Like the WMS 81, it operates in the UHF range and supports automatic frequency pairing, simplifying the setup process. The WMS 61 is known for its lightweight and ergonomic design, making it comfortable for extended use.

In terms of power management, both systems come equipped with innovative battery life indicators. The WMS 61 features a robust rechargeable battery option, ensuring extended performance without the need for frequent replacements. The WMS 81 can accommodate various power options, including alkaline and rechargeable batteries.

Both models also feature a robust metal chassis, ensuring durability in challenging environments, from stages to corporate events. The user-friendly interface provides easy access to essential controls, enabling users to navigate settings effectively.

In summary, the AKG WMS 81 and WMS 61 wireless microphone systems represent a significant advancement in audio technology, combining exceptional sound quality, efficient frequency management, and robust design. Whether you're a professional performer or a corporate presenter, these systems offer reliable solutions that enhance the overall audio experience. With AKG's commitment to quality, both models are sure to meet the demands of any audio environment.