Fredenstein HD MicPre
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Preampmodul för modulrack.
The Fredenstein HD microphone preamplifier utilizes a completely new approach to microphone level amplification.
With 96 kHz/192 kHz sampling rates becoming very popular while tracking, studios are still using equipment which cannot provide the frequency response or bandwidth provided by modern A/D converters.
The HD Pre overcomes these limitations especially for wider bandwidth sources such as acoustic instruments.
It is the preferred choice for classical recordings and Jazz recordings as well.
Besides incorporating a fully discrete signal path and a Class-A balanced output stage, the HD Pre uses a revolutionary current amplification circuit, which neutralizes limiting internal transistor capacitance.
As a result, the HD Pre features an unprecedented bandwidth of over 900 kHz.
SPECIFICATION
Frequency Response : 12 Hz 700000 Hz, +/- 1 dB
Distortion : < 0.0082 at +4 dBu Output Level
(31 dB Gain)
Input Noise : < -131 dB at 150 Ohms Source Impedance (64dB Gain)
Input Impedance : > 200 kOhms or 1000 Ohms selectable
DI Impedance : > 2 MOhms
Max. Input Level : + 20 dBu
PAD attenuation : - 20 dB
Output Impedance : 600 Ohms
Max. Output Level : + 26 dBu
Max Input Signal : + 20 dBu (PAD activated)
(DI or Microphone Input) + 0dBu (without PAD)
