AirLine 77 Fitness

Move Free

Samson revolutionized wireless with the original AirLine transmitter. Building on this groundbreaking technology, the AH7 Micro Transmitter is mounted directly on the headset. This is unique compared to traditional wireless systems that typically use a belt pack with a wire running from the microphone to the transmitter. The AH7 eliminates these extra components, which can be particularly cumbersome for a fitness instructor, and puts everything you need neatly and comfortably around your head. And the transmitter runs for up to eight hours on a single AAA battery.

The Right Mic for Fitness

The AH7 headset transmitter is mounted on a lightweight, adjustable headset that fits comfortably around your ears and the back of your head, even on those days when you're teaching back-to-back classes for hours. The headset also features the Samson Qe condenser microphone, whose sweat-resistant capsule prevents corrosion from prolonged exposure to moisture. In addition, the microphone's bi-directional pickup pattern reduces background noise, minimizes feedback issues, and effectively rejects signals not directly in front of the microphone capsule.

Sound Received

The CR77 True Diversity receiver provides reliable performance with up to 300' (90m) of wireless operation. Its half-rack housing is light enough to throw in your bag, or it can be permanently installed with a rackmount kit (sold separately). The rear panel features balanced XLR and unbalanced 1/4" outputs allowing flexible connection options.

AirLine 77 AH7 Fitness Headset System

• Up to 300' (90m) operating range (line-of-sight)

• Available in multiple channels (region dependent)

• AC adapter and 1/4" audio cable included

AH7 Fitness Headset Transmitter

• Fitness headset with mounted micro transmitter (no beltpack or cable required)

• Qe condenser microphone element with bidirectional pickup pattern

• Sweat-resistant mic design for high-energy instructors/performers

• Up to eight hours of battery life using single AAA battery

• Power/Low battery LED indicator

• Internal Power switch

CR77 Wireless Receiver

• True Diversity design minimizes dropouts

• Mountable half-rack chassis

• 1/4-wave antennas

• Multi-segment audio and RF level LED meters

• Volume and squelch controls

• Balanced XLR output, unbalanced 1/4" output

• Mic/Line level output switch

AH7 Transmitter

Operating Power Voltage1.5V Typical, 1.05V Minimum, 2V Maximum 

Current Consumption60mA Typical 

Battery Life 8 Hours (AAA size battery) 

RF Output Power (5mW)-4dB Minimum, +3dB Maximum 

THD< 2% (1 kHz deviation 15kHz) 

Audio Frequency Response 50Hz - 15kHz (±3.5 dB) 

Controls Internal Power Switch 

Indicators Power On (LED Flash), Low Battery (LED On) 

CR77 Receiver

Oscillation TypePLL 

Antennas1/4 Wavelength Rod 

IndicatorsReceiver A/B (Green), Power On (Red), AF Level (6 segment), RF Level (6 segment) 

Level ControlAudio Level Volume, Squelch Level Control 

Operating Temperature0° C / 50° C 

Operating Voltage12 Volts ±10% 

Current Consumption160 mA (all LED lights illuminated) 

Sensitivity18 dBm (@ THD 2%) 

Squelch Sensitivity0 - 40 dBm (Adjustable) 

T.H.D. (Overall)1% Max (@AF 1 kHz, RF 46 dBu) 

S/N Ratio (Overall)90 dB (w/IHF-A Filter) 

Residual Noise90 dBv (w/IHF-A Filter) 

AF Frequency Response50 Hz – 15 kHz (±3 dB overall) 

Audio Output LevelUnbalanced: 0 dBv; Balanced: -20 dBm (Line), -40 dBm (Mic) 

Audio Output ImpedanceUnbalanced: 5 kΩ; Balanced: 600 Ω