Atoll PR 300 Evolution Vorverstärker

Atoll PR 300 Evolution preamplifier

ATOLL PR 300 Evolution

The small reference preamplifier from ATOLL - now in the EVOLUTION version!

Not only on the outside were the best ingredients used for this preamplifier (such as the 8mm front panel or the ergonomic ventilation openings), the interior is also bursting with performance. The double mono design guarantees the best channel separation, discrete, symmetrically constructed input and output stages ensure ATOLL-typical sound, two oversized power supplies supply the analog circuits (as well as all other functions of the PR300).

The volume and playback devices are selected via rotary knobs (also directly via the IR remote control), the energy-saving and low-interference OLED display provides all important status information. In terms of connections, everything is taken care of - 5x line in, a real tape loop, a bypass input and 2x pre-out leave nothing to be desired. And there are optional digital inputs, Bluetooth or a phono board.

And the trigger output also allows you to conveniently remotely control a power amplifier, e.g. if you want to operate your speakers in bi-amping!

If you want to use the PR300 Signature as a digital control center, you can equip it with the optional digital board.

This has an AKM converter and an XMOS interface chip and enables a comprehensive range of functions:

• 2x coaxial SPDIF input (up to 24/192k)
• 2x optical SPDIF input (up to 24/192k)
• Bluetooth receiver (directly digitally coupled to the AKM converter)
• USB-B input processed with XMOS: PCM: 16/44k - 32/384k asynchronous / DSD: DSD64 & DSD128

Features

• Symmetrical double mono construction
• Completely discrete construction
• MOS-FET output stage
• 4 shielded MKP coupling capacitors
• 4 transformers
• Standby power consumption < 0.5 W
• Preamp output for bi-amping
• Bypass input
• USB input (optional)
• Trigger output
• Renameable inputs
• Headphone jack 6.5mm
• Completely remote controllable
• System remote control
• Can be expanded with digital input module
• Can be expanded with phono module

Specificiations

• Power supply (VA): 2x 10 (audio + 3.2 +10
• Capacitor capacity (µF): 89,000
• Number of inputs: 1x XLR, 5x CInch + 1 bypass
• Number of outputs: 1x XLR, 2 pre-out
• Trigger: 12V 3.5mm Jack
• Input impedance (kΩ): ​​220
• Sensitivity (mV): 500
• Rise time (µs): 1.5
• Transmission range: 5 Hz-200 kHz
• THD @ 1kHz, 10W: < 0.005%
• Signal to noise ratio (dBA): 100
• Weight (kg): 6.8
• Dimensions (mm): 440x95x365‍