Pro-Ject Pre Box RS Digital High end preamplifier, DAC, Headphone amp User Guide
- June 7, 2024
- Pro-Ject
Table of Contents
Pro-Ject Pre Box RS Digital High end preamplifier, DAC, Headphone amp User
Guide
Pre Box RS Digital
High end preamplifier, DAC, Headphone amp
MSRP 1299 € (incl. VAT)
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Switchable DAC chips: 2x PCM1792 or PCM5102
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9 digital inputs: i²S, AES/EBU, Toslink, S/PDIF coax
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Analogue: Pre-out XLR/RCA/headphone, RCA input
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Headphone amp with adaptable output impedance
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Fully balanced double mono design
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Output stage switchable between 6922 tube & solid state
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Ultra-linear and ultra low noise
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Pure Class A circuitry
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Blue Alps volume control
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Standby-power consumption < 1W
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IR remote control included
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Available in black and silver
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DAC: DAC1 – 2 x PCM1792 24/192
DAC2 – PCM5102 32/384 -
Tubes: 6922 EH
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Digital inputs: 1 x USB 2.0 Audio 32/384 + DoP-DSD 64/128
1 x RJ45 Sonic I2S for CD Box RS in Sonic Mode
2 x S/PDIF 24/192, 4 x S/PDIF Optical 24/96
1x AES/EBU balanced 24/192 -
Line-level input: 1 RCA/phono sockets
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Input impedance: 33kohms
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Analog outputs: Pre-out (XLR & RCA), Headphone (6,35mm jack)
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Headphone impedance: 5 / 20 / 50 ohms switchable
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Analog input sensitivity: 1,6V RMS for full headphone output
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Frequency response: 20Hz – 50kHz (+ 0/- 0,1 dB)
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Signal to noise ratio: -100dB (IEC-A)
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THD: 0,005% solid state output/ 0,25% tube output
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Master clock output: 16,9344MHz for CD Box RS in Sonic Mode
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Outboard power supply: 20V/3A DC suitable for your country‘s mains supply
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Power consumption: 300mA solid / 850mA tube / 90mA standby
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Dimensions W x H x D: 206 x 72 x 200mm (210 with sockets)
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Weight: 1950g without power supply
The most universal & future-proof high end pre-amplifier, DAC, headphone amp!
Pre Box RS Digital combines all features of DAC Box RS plus a very linear pre- amplifier with both solidstate and tube output stages, that can be selected alternatively. As in all our top-class digital products, we use PCM1792 DAC chips from Texas Instruments, but here we use 2 pieces in a dual differential mode to achieve ultimate fidelity. As a selectable feature a second DAC chip from Texas Instruments is on board, that can handle 32bit/384kHz. A high-class headphone output with selectable impedance for a perfect match to your headphones is also provided. Pre Box Digital RS offers 3-dimensional sound- staging, perfect micro dynamics and ultimate resolution combined with flexibility to use a wide range of digital and 1 analogue sound sources. Perfectly combined with Pro-Ject CD Box RS disc drive, Pre Box RS Digital will give outstanding sound experience, because of a I²S connection provided via RJ45, that is able to give jitter-free disc playback. Other unique advantages of this true highend DAC/preamplifier:
- Fully balanced double mono design with DAC chip selection
- Class-A circuitry with no negative feedback
- Tube or solid state output stage can be selected alternatively
- Separate power supply as an upgrade option for further improved sound quality.
- Headphone output for outstanding experience. Pre Box RS Digital is available in silver or black finish.
*Upgrade option: The addition of linear power supply Power Box RS uni (retail price € 399) adds even more depth and lets you hear all microscopic fine detail.
PRO-JECT AUDIO SYSTEMS
www.project-audio.com
Technical data and price changes reserved.
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