Listen Technologies Loopworks Measure R2 Audio Receiver

Compact receiver designed for precise audio field strength measurement with broad frequency response and iOS device compatibility.

The Listen Technologies Loopworks Measure R2 Receiver delivers accurate audio field strength measurements with a frequency response spanning 50 Hz to 15 kHz, maintaining tight gain stability within ±0.25 dB under varying conditions. Its vertical coil orientation ensures consistent performance when held upright, calibrated to a reference level of 400 mA/m in field strength mode. Equipped with a 3.5 mm 4-pole jack plug, the receiver connects seamlessly to Apple iOS devices, while a 3.5 mm 3-pole jack socket allows for monitoring through stereo headphones.

The device’s compact dimensions of 2.05 x 1.09 x 0.38 inches and lightweight design at 0.36 ounces facilitate easy portability. It operates reliably within temperatures from 14 to 113°F (-10 to 45°C) and can be stored safely between -4 to 167°F (-20 to 75°C). Finished in black, the Loopworks Measure R2 is engineered for professional use in assistive listening and audio measurement applications.

• Frequency response: 50 Hz to 8 kHz ±0.25 dB; 40 Hz to 10 kHz ±0.5 dB; 30 Hz to 15 kHz ±3 dB
• Gain stability better than ±0.25 dB across all conditions
• 3.5 mm 4-pole jack plug for Apple iOS device connection
• 3.5 mm 3-pole jack socket for stereo headphone monitoring
• Vertical coil orientation when held upright
• Reference level: 400 mA/m in field strength mode
• Compact size: 2.05 x 1.09 x 0.38 inches; weight: 0.36 oz
• Operating temperature range: 14 to 113°F (-10 to 45°C)