Sonifex RB-MA1 Single Microphone Amplifier

Sonifex RB-MA1 Single Microphone Amplifier

438,00 EUR

Modell/Artikelnr.: SF-RB-MA1
Lagerstatus: Bitte erfragen Sie unsere Lieferzeit
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Sonifex RB-MA1 Single Microphone Amplifier

 

 

The Sonifex RB-MA1 consists of a low noise microphone pre-amplifier for converting mic level signals to line level, or for driving long lines from microphones to mixing equipment.

 

The connections and controls are on the rear panel. The microphone input is an XLR-3 type and is electronically balanced. The gain for the input can be adjusted by a recessed pre-set potentiometer which allows for the use of both dynamic and powered microphones.

The line output is of an XLR-3 type and is electronically balanced. It can be wired unbalanced by grounding the non-phase signal, allowing you to feed both balanced and unbalanced equipment.

There is a switch to control a high pass filter (low frequency roll-off at 125Hz) and to provide phantom power at +48V to the connected microphone.

 

 

RB-MA1 Diagram

RB-MA1 Block Diagram.

 

 

 

 

Technical Specification For RB-MA1

Audio Specification

Maximum Input Level: -10dBu
Maximum Output Level: +28dBu
Low Frequency Roll-Off: 125Hz @ 6dB/octave
E.I.N.: 130dB
Common Mode Rejection: >60dB typically
Frequency Response: 20Hz to 20kHz ±0.1dB (600Ω load, ref 1kHz)
Input Impedance: 2kΩ nominal balanced
Output Impedance: <50Ω
Gain Range: Adjustable 36dB to 75dB gain
Distortion: 0.01% THD @ 1kHz, ref +8dBu output
Phantom Power: 48V
   

Connections

Input: 1 x XLR 3 pin female (Balanced)
Output: 1 x XLR 3 pin male (Balanced, can be unbalanced)
Mains Input: Filtered IEC, switchable 110-120V, or 220-240V, fused, 6W max
Fuse Rating: Anti-surge fuse 100mA 20 x 5mm (230VAC)
Anti-surge fuse 250mA 20 x 5mm (115VAC)
   

Equipment Type

RB-MA1: Single microphone amplifier
   

Physical Specification

Dimensions (Raw): 28cm (W) x 10.8cm (D) x 4.2cm (H) (1U)
11” (W) x 4.3” (D) x 1.7” (H) (1U)
Dimensions (Boxed): 36cm (W) x 20.5cm (D) x 6cm (H)
14.2” (W) x 8” (D) x 2.4” (H)
Weight: Nett: 0.90kg Gross: 1.35kg
Nett: 2lbs     Gross: 3lbs
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