Pro-Ject
Pro-Ject Pre Box S2 Digital DAC/Preamp & Stream Box S2 Ultra Streamer
Pro-Ject Pre Box S2 Digital DAC/Preamp & Stream Box S2 Ultra Streamer
FREE 5 YEAR WARRANTY INCLUDED
FREE 5 YEAR WARRANTY INCLUDED

Kronos AV 5 Year Warranty
Kronos AV offer a FREE 5 year warranty with all products they sell (unless otherwise stated here). If you item is faulty during this time, you simply need to contact one of our staff and they will arrange everything for you.
How does the warranty procedure work?
Once you have contacted us to arrange a warranty repair, we will supply you with an RMA number which will allow us to allocate the order to your account when we receive it. We will then have the manufacture repair the goods as quickly as possible and returned to you fully working.
We will also test the goods prior to sending them back to you, to make sure they are 100% working, and you receive back a perfect product.
Do I need to keep the orignal packaging?
Yes, it is very important with all products that you keep all original packaging and boxes. This is to allow for safe shipping. Your warranty will be null and void if these are disposed off, so please keep all packaging and boxes for your purchase.
Exclusions
Warranty Exclusions does not cover ordinary wear and tear by Buyer; (ii) Buyer’s non-observance of installation, operating, and/or maintenance instructions or Specifications provided by Seller in writing; (iii) Buyer’s abuse, improper use, or neglect of Goods and Services; (iv) unauthorized modifications made to Goods and Services by Buyer; or (v) any equipment or materials furnished by Buyer or any third-party (other than Seller or any subcontractor or sub-supplier of Seller).
USED ITEMS: These are excluded from this offer, and a 6 month warranty is provided on these items.
Items which are classed as intimate e.g. cleaning products etc... are also excluded from this
What if the product comes with a warranty longer than 5 years?
In some cases, brands may offer warranties which are longer than 5 years. In this case, they supersede our 5 year warranty, and cover you for the extended period. Again you can contact us to arrange any warranty repair, and we will take care of it for you. The manufacturers T&C's and exclusions may apply.
Where are repairs undertaken?
All items returned for warranty repairs are sent to our warehouse, where our team will confirm the fault, and create a detailed explanation for the engineer. This will help speed up the process, and allow the engineer to pinpoint the problem in order to rectify it in the quickest time possible.
How do I register my warranty?
Your warranty will automatically be registered upon completion of your order. All you need is to keep a record of your order number, and when you contact us simply supply our staff with this number. Our staff can then proceed with the warranty repair for you.
Part Exchange / Trade In Quote?
Part Exchange / Trade In Quote?
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- 0% Finance Available
- Full Aftersales Support
Pre Box S2 Features
- Pre-amplifier with built-in DAC
- High-end ESS Sabre ESS9038 DAC chip
- Proprietary clock circuity design
- Jitter as low as 100 Femtoseconds
- Organic polymer capacitors and thin-film miniMELF resistors
- MQA audio files compatible
- Roon-ready product
- Hi-Res certified product
- DSD64, DSD128, DSD256 & DSD512 (DoP)
- Up to 24-bit / 192kHz for optical & coax inputs
- Seven selectable digital filters
- One proprietary optimum transient digital filter
- Headphone output on the front (6.3mm)
- Dual-mono construction
- User-friendly screen and operating system
- Gold-plated four layer PCB
- Premium S2 chassis
- Available in black or silver




Stream Box S2 Ultra
- High resolution network bridge
- Audio optimized USB A output
- Multi-room enabled
- Dual USB A input for external storage
- TIDAL supported
- Spotify Connect
- Network-enables any modern DAC with USB input
- Internet Radio
- DLNA enabled
- Bypasses all audio formats to the DAC
- Cleans up the audio signal from a PC
- Roon Ready (in progress)
- Shairport
- Bluetooth
- Uses dedicated power supplies
- HDMI video output
- Controllable via smart devices and PC/Laptop
- New control app!
- Ethernet and WiFi connectivity
Video
Awards
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"Pro-Ject’s Pre Box S2 Digital offers a wealth of audiophile tweakery but its emphasis on USB ties it primarily – but not exclusively – to desktop and laptop PCs. On the other hand, USB hook-up means the S2 is still a portable option for laptop users, and it doesn’t need a battery. For the price, its sound performance is impeccable, combining clarity and precision with an attractive warmth and impressive sense of space." |
Click here to read the full review
Stream Box S2 Ultra
Audio Formats | PCM 32bit/352.8kHz, DSD256 |
Internet Radio | Shoutcast |
Streaming Services | TIDAL, Spotify |
Supported data protocols | RAAT, Shairport, DLNA |
Multi-room | Up to six devices |
Inputs | 2 x USB A |
Micro USB B (PC-Detox) | |
Network (Ethernet, WiFi) | |
Outputs | Audio optimized USB A |
HDMI (video) | |
Controllable via | App, Web Browser, Roon |
Weight | 375 g (without power supply) |
Dimensions (WxHxD) | 105 x 37 x 105 mm |
Pre Box S2 Digital Specs
DAC: | 2x ESS9038Q2M 32-bit PCM 768kHz / DSD512 |
Digital Inputs: | 1x Coax (S/PDIF) 2x Optical (TOSlink®) 1x USB B |
Headphone Amp Chip: | ESS9062 |
Sampling Rates: | 32kHz 44.1kHz 48kHz 88.2kHz 96kHz 176.2kHz 192kHz 352.8kHz 384kHz 768kHz |
DSD Support: | DSD64 DSD128 DSD256 DSD512 |
MQA Support: | Full MQA Unfolding by Hardware |
Filter Settings: | 7x Selectable |
Frequency Response: | 20Hz - 20kHz |
THD: | 0.0003% |
Analogue Outputs: | 1x Headphone (6.35mm Jack) 1x Variable Out (RCA) |
Dynamic Range: | 124dBA |
Output Voltage: | 2.05 Veff |
Power Consumption: | 5V. Micro USB |
Dimensions: | 103 x 36 x 103mm |
Weight: | 600g (Without PSU) |
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