Hifiverse
Audio

Pro-Ject DAC Box RS Final Edition – DAC on ECC88 tubes

15.02.2025 17:03 | ~1 minute read

Pro-Ject has released the Pro-Ject DAC Box RS Final Edition digital-to-analog converter – the new product features a pair of audiophile Diamond ECC88 tubes. All circuit elements of the Pro-Ject Audio DAC Box RS Final Edition have undergone a special selection, and the internal wiring has also been upgraded. The DAC output stage is implemented in a balanced circuit, while the tube circuit can be either connected or disconnected using a button on the front panel.

Pro-Ject DAC Box RS Final Edition
Pro-Ject DAC Box RS Final Edition. Image source - (c) Pro-Ject

The Pro-Ject Audio DAC Box RS Final Edition DAC offers a rich commutation set, which includes an I2S input with Master Clock, a balanced AES/EBU input, an optical Toslink, a coaxial input, and a USB-B port. The DAC is capable of decoding audio in DSD formats up to DSD128 and PCM up to 24 bit/192 kHz. The new product is based on a pair of Texas Instruments PCM 1792 chips and offers a choice of digital filters.

Pro-Ject DAC Box RS Final Edition
Pro-Ject DAC Box RS Final Edition. Image source - (c) Pro-Ject

If desired, the included DAC power supply can be replaced with an optional Pro-Ject Power Box RS2 linear source based on a large toroidal transformer. The Pro-Ject Audio DAC Box RS Final Edition is already available in Europe at a recommended retail price of €1,199. The optional Pro-Ject PowerBox RS2 power supply is available at a price of €999.

Specifications

This product is in the Hi-Fi and High End Electronics and Acoustics database

DACs — Pro-Ject DAC Box RS Final Edition

  • Model name

    DAC Box RS Final Edition

  • Conversion type

    8 x Oversampling design

  • Engine

    2 x Texas Instruments PCM 1792

  • DSD compatability

    Yes

  • Parameters

    up to PCM 24/192 and DSD128

  • Frequency response low +/- 3dB (Hz)

    20

  • Frequency response high +/- 3dB (Hz)

    50000

  • Gain (dBu)

    N/A

  • Output Level (balanced) (V)

    N/A

  • Output Level (single-ended) (V)

    N/A

  • Input Impedance (balanced) (Ω)

    N/A

  • Input Impedance (single-ended) (Ω)

    N/A

  • Output Impedance (balanced) (Ω)

    N/A

  • Output Impedance (single-ended) (Ω)

    N/A

  • Analog outputs

    N/A

  • Signal to Noise Ratio (dB)

    100

  • Total Harmonic Distortion + Noise (% at 22 kHz)

    0.005 - 0.25

  • Dimensions (mm)

    206 x 72 x 210

  • Weight (kg)

    1.89

  • Official link

More content

hifiverse