Pro-Ject Pre Box RS2 Digital Pre Amplifier / DAC
Pro-Ject Pre Box RS2 Digital Pre Amplifier / DAC
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High end preamp, D / A converter, headphone amplifier
Universal & future-proof: high-end preamplifier, D / A converter, headphone amplifier!
The Pre Box RS Digital combines all the features of the DAC Box RS with a highly linear preamplifier, which has a switchable output stage in transistor and tube technology. As with all of our top-of-the-line digital products, we use the PCM1792 DACs, which are used twice in dual differential mode for ultimate fidelity. As a unique feature can alternatively be switched to a 32bit / 384kHz converter chip also from Texas Instruments. The also available high-quality headphone amplifier has a switchable output impedance to allow optimal adaptation to any headphone. The Pre Box Digital RS offers 3-dimensional room image, Perfect fine dynamic playback and ultimate resolution with the ability to connect a variety of digital and analog sources. Especially in combination with the Pro-Ject CD Box RS drive, the Pre Box RS Digital can show its qualities, as a specially suitable I²S interface (via RJ45) ensures maximum jitter-free reproduction.
Features
- DAC switchable: 2x PCM1792 or PCM5102
- 9 digital inputs: i²S, AES / EBU, Toslink, S / PDIF coax
- Analog: Pre-out XLR / RCA / Headphone, RCA input
- Headphone amplifier with selectable output impedance
- Fully symmetrical dual mono construction
- Output stage switchable tubes 6922 & transistor
- Ultra-linear with high signal-to-noise ratio
- Pure Class A circuit
- Blue Alps volume control
- DC power supply (<1 watt standby consumption)
- IR remote control included
- Available in black or silver
Specs
D / A converter | DAC1 - 2 x PCM1792 24bits / 192k Hz; DAC2 - PCM5102 32bits / 384k Hz |
roar | 2 x 6922 EH |
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 | |
1 x AES / EBU symmetrical 24/192 | |
Line input | 1 pair of RCA jacks |
input impedance | 33 kOhm |
Analog output | Pre-out (XLR & RCA), headphones (6.35mm jack) |
Headphone Impedance | Switchable 5/20/50 ohms |
Analog Input Sensitivity | 1.6V RMS for full headphone volume |
frequency range | 20Hz - 50kHz (+ 0dB / - 0.1dB) |
noise Ratio | -100dB (IEC-A) |
THD | 0.005% transistor output / 0.25% tube output |
Masterclock output | 16.9344MHz for CD Box RS in Sonic Mode |
power adapter | 20V / 3A DC suitable for worldwide use |
current consumption | 300mA transistor / 850mA tube / 90mA standby |
Dimensions W x H x D | 206 x 72 x 210mm, with sockets |
mass | 1950 g without power supply |
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