Atoll Electronique PR400 Signature Stereo Preamplifier

Description

Provides A Very Detailed & Full of Nuances Musicality!

Preamplifier PR400 Signature

The PR400 Signature works in double mono, one low-noise transformer per channel. The potentiometer, regulator, input and output relays are also separated. Each input capacitor is shielded in a metal box linked to the ground. They are a total of 55’000µF per channel. The ALPS potentiometers are controlled by the microprocessor separately.

Audio stages are based on discrete component schemes with low feedback. The PR400 Signature uses the new OLED display. The concept of rigorously symmetrical stages provides a very detailed and full of nuances musicality with a clear ability to separate the interpreters and the different registers.

The PR400 Signature also has the faculty to present a seamless musicality regardless of the listening level. The care taken to lower settings and the choice of components allow to make perceptible the slightest breath and the intentions of the interpreters with a no-brainer and a surprising nature. The smallest nuances and the subtleties of the timbres are perfectly intelligible.

Connections:

• Inputs:
  6 Unbalanced:
  AUX
  CD
  TUNER
  DVD
  TAPE
  BY-PASS
• 2 Balanced:
  XLR1
  XLR
• Outputs:
  Fixed:
  Tape Out
• Variable:
  2 Balanced
  2 Unbalanced

Optional Digital Board:

An Optional Board with Several Digital Inputs is Available, Including:

• 1 Bluetooth Receiver: Direct Digital to the AKM Audio Converter
• 2 Coaxial Inputs (24Bits/192kHz)
• 2 Optical Inputs (24Bits/192kHz)
• 1 USB-B Input: PCM & DSD
  Audio Converter: AKM – AK4490
  PCM from 16 bits to 32bits Up to 384 kHz on USB-B Input (Asynchronous)
  DSD: DSD64 & DSD128
  USB Interface: XMOS with Specific Program Designed for ATOLL

Specifications:

• Analog Supplies: 2×10 VA
• Digital Supplies: 1×10 VA
• Total Capacitors: 112 000 µF
• Inputs: 5 Line 2 XLR
• Input Impedance: 357 kΏ
• Sensitivity: 4V
• Signal/Noise Ratio: 100 dB
• Distortion @ 1kHz: 0.004%
• Bandwidth: 0.5Hz – 780kHz
• Rising Time: 0.4µs
• Dimensions: 440 x 130 x 370mm
• Weight: 11.00kg

Atoll ATPR400SIG Specs