Main features
![Ribbon element: 2](https://www.hum-audio.com/wp-content/uploads/2020/03/arm1l-box07.jpg)
Ribbon element: 2" long (1,8u aluminum foil)
![Polar<br />
pattern:<br />
Figure-8](https://www.hum-audio.com/wp-content/uploads/2020/03/arm1l-box06.jpg)
Polar
pattern:
Figure-8
![Supply:<br />
Phantom<br />
+48V (+/- 5V)](https://www.hum-audio.com/wp-content/uploads/2020/03/arm1l-box02.jpg)
Supply:
Phantom
+48V (+/- 5V)
![Frequency response: 30Hz - 14kHz (+/-3dB)](https://www.hum-audio.com/wp-content/uploads/2020/03/arm1l-box01.jpg)
Frequency response: 30Hz - 14kHz (+/-3dB)
![Sensitivity:<br />
-38dB (1V/Pa)](https://www.hum-audio.com/wp-content/uploads/2020/03/arm1l-box04.jpg)
Sensitivity:
-38dB (1V/Pa)
![Max. SPL:<br />
137dB](https://www.hum-audio.com/wp-content/uploads/2020/03/arm1l-box05.jpg)
Max. SPL:
137dB
![Output impedance:<br />
22 Ohm<br />
(electronic)](https://www.hum-audio.com/wp-content/uploads/2020/03/arm1l-box08.jpg)
Output impedance:
22 Ohm
(electronic)
![Recommended load impedance: 150 Ohm or greater](https://www.hum-audio.com/wp-content/uploads/2020/03/arm1l-box03.jpg)
Recommended load impedance: 150 Ohm or greater
![HPF:<br />
50Hz/100Hz<br />
(6db/oct)](https://www.hum-audio.com/wp-content/uploads/2020/03/arm1l-box09blue.jpg)