Atoll PR300 Evo

The PR300 EVO preamp. This model is specially designed to meet the needs of demanding music lovers, offering unprecedented modularity and remarkable musicality. We have chosen to equip it with XLR input/output and audio stages with a fully symmetrical and dual mono structure.

• 8 mm brushed, micro-blasted and anodised aluminium front panel, high-precision engraving.
• 1.5 mm steel chassis.
• Two 10 VA toroidal transformers, one for each of the audio stages.
• A 3.2 VA linear transformer (digital audio).
• A 5 VA low-consumption transformer (control logic).
• High-quality and shielded MKP link capacitors.
• Integral dual mono and symmetrical structure:
            – Two independent symmetrical stages for each channel.
            – One stereo attenuator per channel (with switched resistors).
  
  
  • Audio stages with bipolar transistors with perfectly symmetrical structure, polarized in class A, very low feedback rate.
  • Precise balance adjustment, possibility of memorizing it.
  • Possibility of renaming the inputs.
  • Possibility of choosing the standby mode: Low consumption or preheating.
  • High-contrast OLED display (on or off mode after 5 seconds of inactivity).
  • ATOLL global remote control supplied as standard.
  • The PR300 EVO can accommodate the following optional boards:
                 – DAC boards: DA100 and DA200.
                 – PHONO boards: P50 and P100 (can be combined with DAC boards).
    

    CONNECTIVITY

  Inputs
  1 XLR input.
  5 Line inputs: AUX or PHONO (option), CD, TUNER, DVD, TAPE.
  1 BY-PASS input.

  Outputs
  2 Line outputs.
  1 XLR output.
  1 12V Trigger output.
  1 Ø 6.35 mm headphone jack output.

  Divers
  Possibility of adding DA100 or DA200 digital boards (optional)

  TECHNICAL DATA

  Power supply: 2×10 VA (audio) + 10 VA + 3,2 VA
  Total of capacitors: 89 000 µF
  Bandwidth (-3 dB): 5 Hz – 100 kHz
  Rise time: 1,3 µs
  Input impedance: 357 kΩ
  Sensitivity: 3 V
  Signal-to-noise ratio: 100 dB
  Distortion rate at 1 kHz: 0,005%
  Standby power consumption (low power): < 0,5 W
  Dimensions: 440×365×95 mm
  Weight: 6,8 Kg.

  OPTIONAL BOARDS AVAILABLE

  1 Digital board (of your choice):

  • DA200
    2 Coaxial inputs (24 bits/192 kHz)
    2 Optical inputs (24 bits/192 kHz).
    1 Bluetooth receiver.
    1 USB-B input: PCM & DSD.
  • DA100
    2 Coaxial inputs (24 bits/192 kHz).
    2 Optical inputs (24 bits/192 kHz).

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  XMOS SPECIFIC DRIVER

  Important: Using the DAC board’s USB input requires downloading a specific driver for Windows computers. The driver is not necessary for MAC and Linux. The driver can be downloaded below.

  Download it here:
  XMOS-Stereo-USB-Audio-Class2-Driver-30BB_v4.13.0.exe
  

   

   

  1 Phono board on the AUX input (of your choice):

  • P100 (configurable MM or MC).
  • P50 (MM).