Description
Atoll PR400 Signature : Preamplifier
The preamplifier PR400 Signature operates in dual mono with one low-noise transformer per channel. The potentiometers and selection relays are also separate for the two channels. The link capacitors (top-of-the-range MKP) are shielded in independent formwork to avoid parasitic noise. The volume is managed by two motorized, independent, and ALPS potentiometers perfectly synchronized. We use a proprietary servo system, based on a real-time measurement not intrusive to the audio.
- 10 mm brushed aluminium front panel.
- Linear power supplies based on low-noise toroidal transformers.
- Symmetrical stages with discrete components.
- Optional DAC boards: DA100 & DA200.
- Low-consumption OLED display.
- ATOLL global remote control.
CONNECTIVITY
Inputs
5 Stereo line inputs: AUX, CD, Tuner, DVD, TAPE.
2 Stereo XLR inputs.
1 BY-PASS input.
Outputs
1 Stereo tape output.
2 Stereo preamp outputs.
2 Stereo XLR outputs.
1 Trigger output 12V.
Various
1 Headphone jack Ø 6,35 mm.
Specifications :
Analog power supplies: 2×10 VA
Digital power supplies: 10 VA
Total of capacitors: 112 000 µF
Number of inputs: 5 lines, 2 XLR
Bandwidth: 0,5 Hz – 780 kHz
Rising time: 0,4 µs
Input Impedance: 357 kΩ
Sensibility: 4 V
Signal/Noise ratio: 100 dB
Distortion at 1 kHz: 0,004%
Dimensions: 440×370×130 mm
Weight: 15 Kg
