מודול קדם מגבר רדיאל 500 RADIAL Jensen Twin Servo

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500 Series Microphone Preamp
The Twin-Servo is a high performance microphone preamp that leverages two discrete 990 op-amps for incredibly clean and transparent operation.

Exceptionally wide frequency response from 0.5Hz to 150kHz
Twin-Servo topology eliminates capacitors in the signal path
Virtually zero phase shift or bandwidth limitation
Oversized Jensen transformers for maximum headroom

The Jensen Twin-Servo 500 is a faithful recreation of Deane Jensen’s famous 990 microphone preamp in a 500 series format. This unparalleled circuit design includes two cascaded 990 op-amps to share the load and provide 60dB of clean gain, as well as two servos that eliminate signal degrading capacitors from the audio path that allow for less than -120dBu of noise. Oversized Jensen input and output transformers produce an exceptionally wide frequency response and plenty of headroom. Twin-Servo is well-suited for recording highly dynamic sources, with 91dB of dynamic handling. Even more important than the specifications is the sound of the Twin-Servo; exceptionally natural and transparent, with detailed highs and an extended low end that will have you hearing your mics like never before.

Specifications
Audio circuit type: Two stage variable gain all discrete using original Deane Jensen circuit with IC DC servo.
Transformer: Jensen JT-11-EM, JT-16-PCJR
Frequency response: 14Hz to 85kHz / 8Hz to 100kHz (±1dB / ±3dB)
Dynamic range: 91dB
Gain: +60dB
Total harmonic distortion: 0.004%
Intermodulation Distortion: 0.004%
Input Impedance: 1.3kΩ
Output Impedance: 75Ω
Common Mode Rejection Ratio: -72dB
Features
Input pad, 180° polarity reverse, HPF, Phantom Power, OmniPort
Input Connectors: XLR
Extras: OmniPort assigned as unbalanced instrument input
General
Construction: 500 Series module
Size (L x W x D): 5.25″ x 1.5″ x 7″ (134mm x 38mm x 178mm)
Weight: 1.75lb (0.79 kg)
Shipping size (L x W x D): 6.75″ x 1.875″ x 9″ ( 171mm x 48mm x 229mm)
Shipping weight: 2.20lb (0.997 kg)
Power: 110mA
Conditions: For use in dry locations only between 5°C and 40°C
Warranty: Radial 3-year, transferable