The HUM Audio Devices ARM-1 L is an active, phantom powered, ribbon microphone with a long (2″ / 50mm) ribbon. The HUM ribbon has a huge, larger than life, sound with a lot of depth and detail and, at the same time, preserves the classic ribbon sound flavour so much beloved by musicians and engineers.
The ARM-1L is basically the same as the ARM-1S, the only difference being the length of the ribbon (2″ for the 1L and 1″ for the 1S).
The microphone has an integral swotchable high-pass filter: off / 100Hz / 50Hz (see picture).
The difference in sound:
ARM-1L is more contoured, great to add some character to the sound.
ARM-1S is smoother and tonally balanced.
ARM-1L (blue suspension)
ribbon element: 2″ long (1.8µ aluminum foil, shielded with copper)
polar pattern: Figure-8
supply: Phantom +48V (+/- 5V)
frequency response: 30Hz – 14kHz (+/-3dB)
sensitivity: -38dB (1V/Pa)
max. SPL: 137dB
output impedance: 22Ω (electronic)
recommended load impedance: 150Ω or greater
HPF: 50Hz (6db/octave)
anti-vibration system: Dual (external shockmount and internal vibration isolators)
Spider external diameter: 126mm
This is a new microphone – more details will be added here as they become available.