Pro-Ject DAC Box S2+ Compact Digital-to-Analog Converter - Silver
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Pro-Ject DAC Box S2+ Compact Digital-to-Analog Converter
What You Need to Know
Serious Hi-Res Conversion, Palm-Sized Price
The Pro-Ject DAC Box S2+ Compact Digital-to-Analog Converter proves you don’t need a full-size chassis—or a full-size budget—for genuine audiophile digital playback. Handmade in Europe, this palm-sized aluminum box carries a flagship-family ESS Sabre ES9038 converter, plays PCM up to 32-bit/768kHz, and decodes DSD up to DSD256.
If your amp, CD player, or TV deserves better digital-to-analog conversion, the DAC Box S2+ is the easiest upgrade in hi-fi.
Flagship-Family ESS Sabre Conversion
At the heart of the S2+ sits the ESS Sabre ES9038Q2M—a 32-bit converter from the same family found in DACs many times the price. Pro-Ject pairs it with proprietary clock circuitry that reduces jitter to as little as 100 femtoseconds, plus audiophile parts throughout: organic polymer capacitors, thin-film miniMELF resistors, and a gold-plated four-layer circuit board.
The measured results speak for themselves: 0.0007% distortion and 120dB dynamic range.
Five Selectable Digital Filters
A front-panel button cycles through five digital filters—including Pro-Ject’s proprietary Optimal Transient response—letting you fine-tune the presentation to your ears and your music. Your filter and input choices are remembered every time you power up.
Three Inputs for Your Whole Digital World
The asynchronous XMOS USB input handles hi-res from your computer up to 32-bit/768kHz and DSD256. Coaxial and optical inputs (up to 24-bit/192kHz) welcome a CD transport, streamer, or TV. Fixed-level RCA outputs feed any amplifier or preamp with a clean 2.05V signal.
The Box Design Philosophy
Pro-Ject’s S2 series packs true high-fidelity engineering into stackable, half-width aluminum enclosures that shield against vibration and interference. The DAC Box S2+ matches perfectly with its S2 siblings—and fits absolutely anywhere.
Building Your System
Connect the DAC Box S2+ between any digital source and your amplifier’s analog input. Power comes from the included 5V adapter—or directly over USB from your computer for the simplest desktop setup.
For a complete compact system, pair it with Pro-Ject’s CD Box transport and Stereo Box amplifier.
Features & Specifications
ESS Sabre ES9038Q2M Converter
Flagship-family 32-bit conversion with 0.0007% distortion.
Hi-Res Playback to 32-Bit/768kHz and DSD256
Via asynchronous XMOS USB; 24-bit/192kHz on coax and optical.
Five Selectable Digital Filters
Including Pro-Ject’s proprietary Optimal Transient response.
Ultra-Low 100-Femtosecond Jitter
Proprietary clock circuitry for clean, precise timing.
Audiophile Parts Throughout
Polymer capacitors, miniMELF resistors, gold-plated 4-layer PCB.
Handmade in Europe
Full aluminum anti-vibration casing in silver or black.
Specifications
• Type: Digital-to-Analog Converter
• Converter: ESS Sabre ES9038Q2M, 32-bit
• PCM Support: Up to 32-bit/768kHz (USB); 24-bit/192kHz (Coax, Optical)
• DSD Support: DSD64/128/256 via USB (DoP)
• THD: 0.0007% (1kHz, 2V RMS)
• Dynamic Range: 120dB (A-weighted)
• Inputs: USB-B (XMOS Asynchronous), Coaxial, Optical
• Output: Stereo RCA, Fixed 2.05V RMS
• Filters: 5 Selectable
• Power: External 5V DC Adapter (included) or USB Bus Power
• Dimensions: 4“W x 1.5”H x 4.8"D
• Weight: 0.78 lbs
• Finishes: Silver or Black
• Warranty: 2 Years (3 with registration)
Frequently Asked Questions
Does it have a volume control or headphone output?
No—the DAC Box S2+ is a pure DAC with fixed-level outputs, designed to feed an amplifier, preamp, or powered speakers with their own volume control. If you need volume and headphone output in this size, ask us about Pro-Ject’s Pre Box S2 Digital.
Will it improve the sound of my CD player or TV?
Very likely. Most CD players and virtually all TVs use basic converter chips—routing their digital output through the S2+’s ESS Sabre stage is a dramatic, affordable upgrade.
Do I need special drivers?
Mac and Linux are plug-and-play. Windows uses the supplied driver for hi-res and DSD playback.
Who is the DAC Box S2+ designed for?
It’s ideal for anyone adding genuine hi-res conversion to a desktop rig, upgrading an aging CD player, or building a compact high-quality system on a sensible budget.
Why Audio Advisor?
• 40+ Years of Expertise – Helping music lovers build better systems since 1981.
• 60-Day Money-Back Guarantee – Hear it in your own system with confidence.
• Real Product Experts – Friendly advice before and after your purchase.
• Free Shipping – On qualifying orders over $49.
• Flexible Financing – Convenient payment options available.
- High end ESS Sabre ESS9038 DAC
- Proprietary clock circuity design
- Organic polymer capacitors and thin film miniMELF resistors
- 32bit / 768kHz PCM support
- DSD64, DSD128 & DSD256 (DSD over PCM)
- Up to 24bit/192kHz for optical & coax inputs
- Three digital inputs: 1x coax (S/PDIF), 1x optical (TOSlink), USB B
- Analog out: 1x Line Out (RCA)
- D/A-converter: 1x ESS9038Q2M 32-bit PCM 768kHz / DSD512
- Sampling rates: 32 / 44.1 / 48 / 88.2 / 96 / 176,2 / 192 /352.8 / 384 / 768 kHz
- 5 selectable digital filter characteristics
- 1 proprietary optimum transient digital filter
- Synchronization of all internal oscillators
- Jitter as low as 100 Femtoseconds!
- Gold plated four layer PCB
- Full alu/metal sandwich casing in silver or black
- Frequency response: 20 Hz - 20 kHz
- Output voltage: 2.05 V eff
- THD: 0.0007%
- Dynamic Range: 120dBA
- Power consumption: 5V, micro USB
- Dimensions W x H x D: 4" x 1.45" x 4.37"
- Weight: 12.7 oz. without power supply
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