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Neumann MTX 191 A Matrix Amplifier

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This item has either been discontinued by the manufacturer or is no longer available to purchase on our website.

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Matrix Amplifier for RSM 191 or SKM 100-MS, Provides 48V Phantom (Cables Sold Separately), Requires 9V Battery

Overview

The MTX 191 A matrix amplifier is used for processing the MS microphone signals of the RSM 191 shotgun stereo microphone, or the active capsules AK 20 and AK 40. The level of the side signal is variable, independent of which output mode is selected (MS or XY). It is adjusted through a rotary switch in 3 dB steps from -9 dB to +6 dB, relative to the level of the middle signal. Consequently the pickup angle is varied in steps between 60 and 170.

Depending on the position of the rotary switch on the front of the matrix amplifier the output provides either an MS- or XY-signal. The XY-signal is obtained from the MS-signal by summation (X = M + S) or subtraction (Y = M - S). In both modes an electric left-right-inversion is alternatively possible if during the recording the microphone is turned upside-down.

To suppress low frequent interfering noise the matrix amplifier has a switchable high-pass filter at 40(LIN)/80/200 Hz. The power for both matrix amplifier and microphone, is either supplied by a 9 V battery (IEC 6 F 22), or through external 48 V phantom powering.

The RSM 191 is connected with the 7-pin KT 5/KT 6 cables. Two AK... active capsules can be connected with an AC 30 cable. The audio is passed through a XLR 5 M connector. The output signal is DC-free. Use AC ... adapter cables to connect the audio to unbalanced inputs.

Specifications

  • Operating voltage: 9 V or P48
  • Battery: IEC 6 F 22.9 V
  • Side signal: variable -9 dB ... +6 dB in 3 dB steps
  • Side signal: (pick-up angle 60 ... 170)
  • Output: switchable MS oder XY
  • High-pass filter: 40(LIN)/80/200 Hz
  • Weight: 390 g (without battery)
  • H x W x D: 37 x 80 x 145 mm

Q & A

Brand
Neumann
Model
MTX 191 A
MFR Part Number
007331
UPC
615104073319
EAN
4006087073315
Product Category
Phantom Power Supplies
Unit of Measure
EACH
Shipping Weight
1.19 lbs.
Page Views
3283
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