Atoll PR300 Signature Black

The integrated amp-preamp IN300 Evolution stands out with its unique features: We meticulously select the finest components to deliver the pinnacle of sound performance. Our relentless pursuit of perfection is evident in the design of our exclusive ATOLL circuits, which safeguard the integrity of even the most delicate musical signals.

• 8 mm brushed aluminium front panel.
• 2 x 150 Wrms / 8Ω.
• 2 toroidal transformers, 440 VA each.
• Filter capacitors: 12 x 6800 μF high-quality, low ESR capacitors specifically for ATOLL.
• 5 VA low-power dedicated power supply for the digital stages.
• 2-volume attenuators: 1 per channel to maintain the dual-mono architecture.
• Soft-start stage to avoid power consumption peaks.
• High-end ABSOLUE CREATIONS power cable.
• Triple push-pull MOS-FET power stage.

• Shielded MKP Mundorf capacitors.
• Balance adjustment and memorisation.
• Discrete audio stages.
• MKP technology link capacitors.
• High-performance heat sinks, direct thermal coupling.
• Double-sided printed circuit boards with nickel/gold finish.
• Class A/B output stage biasing.
• Thermal protection.
• Standard DAC board.
• Optional PHONO board:
             – P50 and P100 that can be combined with the DAC board.
• ATOLL global remote control supplied as standard.

• Specific copper speaker output connectors specially manufactured for ATOLL.
• Internal wiring of the speaker outputs with high-end cable.
• Output connectors (RCA) gold-plated.

View the standard for XLR connector wiring.

Our balanced MOS-FET amplifier circuits offer excellent harmonic gradients and have no memory effect. Every moment, the current is immediately delivered to your speakers. This is one of the secrets of the musicality that ATOLL amplifiers enjoy.

Wrms Power / 8Ω: 2×150 W
Wrms Power / 4Ω: 2×260 W
Power Supply: 2×440 VA
Total of capacitors: 86,400 µF
Number of Inputs: 6 + 1 BY-PASS
Bandwidth: 5 Hz – 100 kHz
Rising time: 2.0 µs
Input Impedance: 220 kΩ
Sensitivity: 450 mV
Signal-to-Noise Ratio: 100 dB
Distortion at 1 kHz: 0.05% / (10 W)
Dimensions: 440 x 365 x 103 mm
Weight: 16 kg

Owner’s Manual

Device Installation Scheme

Press Reviews

DETAILED TECHNICAL CHARACTERISTICS

OUTPUT STAGES:

• Double mono stages with 2 toroidal transformers of 440 VA.
• Specific low-consumption power supply (5VA) for managing the display and logic circuits.
• High-quality, low-ESR filter capacitors are made to ATOLL specifications.
• Output stages with very little feedback provide a lot of dynamics and a very natural sound.
• Specific stages to avoid current peaks on ignition.
• High-end specific internal power wiring.

INPUT STAGES:

• MKP Mundorf shielded capacitors.
• Volume by double attenuator: 1 per channel.
• Bipolar symmetric stages with discrete components.

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

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

Important: Using the DAC card’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

• Balance management.
• Low-power OLED display.
• Serial remote control (allowing control of all products: Integrated, CD Players, Tuner, DAC).

“L’attaque des notes, ou dynamique instantanée, est franche, rapide et surtout très réaliste. Voilà, en passant, tout l’intérêt d’écouter des plages musicales que l’on connaît bien pour se faire une idée précise du naturel des attaques. Cet amplificateur intégré se montre très précis et vivant, en libérant au mieux l’intégralité du contenu harmonique de chaque son transitoire qui, comme chacun sait, est tributaire de la rapidité du temps de montée. En d’autres termes, le suivi des attaques de notes est restitué dans des conditions optimales puisque l’amplificateur, ayant de l’énergie instantanée à revendre, réagit sans temps de récupération audible.”

Philippe David, Haute Fidélité, Juin 2017

The IN300 Evolution is available in black or natural aluminium versions: