Description
HD MicPre
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.
Specifications
- Frequency Response: 12 Hz – 700,000 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)
