The RS-2 is world’s first remote controlled, Stereo/M-S ribbon microphone with built-in High-End discrete microphone preamplifiers.

The HUM Audio Devices RS-2 is extraordinary, it’s a complete recording system with sound and features never before found in any of the top class ribbon microphones.  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.

“It’s amazing on grand piano, the depth in the sounds is incredible. 
Distant room mic. on drums is incredible too, the low end is huge.
 Very impressed!
I didn’t think a microphone could be worth that kind of money but I stand corrected.”
Studio User – 2019
“if you’re a true aficionado who treasures the smoothness, depth and punch that a classic long-ribbon design delivers, you should find a way to hear this mic.”
Sam Inglis – Sound On Sound – October 2017

Main Features

  • TWO MODES – can be used acive or passive
  • HIGH END MIC. PRE-AMPS – High End, discrete class-A microphone pre-amplifiers are built into the microphone body
  • RIBBON MOTORS – Custom made 1.8 micron aluminium foil ribbon motors
  • REMOTE CONTROLLED – Remote control system gives access to all functions via a single XLR cable
  • LOW-CUT FILTER – Switchable Low Cut Filter (50Hz, 80Hz and 120Hz)
  • AIR BOOST MODE – Air Boost mode gives a very smooth Pultec style HF boost
  • M/S MATRIX – Transformer based M/S matrix
  • DIMM OPTION – Very useful DIMM option protects loudspeakers during microphone positioning
  • ROTATABLE HEAD – Rotable microphone head for fast change between L/R to M/S position.  The HUM logo is always to the front for accurate alignment and the heat can be rotated depending on whether XY or M/S is being used
  • HIGH GAIN and HEADROOM – High gain and a huge headroom – so there is no worry about high source SPL
  • ANTI-VIBRATION SYSTEM – Dual anti-vibration system (both external and internal)
  • CUSTOIM-MADE CABLES  – Custom made signal and power cables are supplied with the system and other lengths available to order
  • LUNDAHL TRANSFORMERS – No compromise Lundahl microphone and line output transformers are used in the system
  • SHORT SIGNAL PATH – Extremely short signal path for highest quality
  • AUDIOPHILE QUALITY – Audiophile quality selected components
  • NO ELECTROLYTIC CAPACITORS – No electrolytic capacitors are used in the signal path.  Electrolytic capacitors can dry out over time and can compromise the sound quality, to overcome this, no electrolytic capacitors are used in the signal chain

The remote control uses standard XLR-3 connectors, so can be used with any microphone cable – because of this standard cable, it can be used through a studio tie-line with the RS-2 and power supply in the Studio and the controller in the Control Room.

What you get:

The RS-2 system contains:-
RS-2 stereo ribbon microphone
RS-2 remote control unit
RS-2 power supply
Custom Cable Set – microphone to PSU cable, mains cable, remote control cable
Mic. Head dust cover
Flight Case


ribbon elements:    2 x 2″ long (1.8µ aluminum foil)
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)


Mic body
Length: 421.5mm
Diameter: 70mm (lower), 60mm (upper)
Suspension external diameter: 140mm

PSU Unit
Length: 245mm (incl. sockets)
Width: 128mm
Height: 44mm (without rubber feet)

Length: 123.5mm
Width: 154mm
Height: 59mm (with knobs but without rubber feet)

Flight Case
Length: 340mm
Width: 490mm
Height: 180mm

RS-2 Session Recall Sheet     (this is a printable sheet for the user to fill in microphone settings for recall in later sessions)