Pro-Ject Phono Box S3 B
- Free Mainland UK Shipping on orders over £100
- Official Hi-Fi Retailer since 1973
- Usually in stock and dispatched in 1-5 working days
We offer free delivery on all orders over £100 to mainland UK. Orders under £100 are subject to a £6.50 shipping charge.
Delivery is available across mainland UK. If you are located outside mainland UK and would like a shipping quote, please get in touch before placing your order.
We aim to dispatch in-stock items as soon as possible provided that we physically have the stock - but please note that sometimes we have to order from our supplier for certain products, in which case delivery should take place within 1-5 working days of the order being placed.
Tracking details or estimated delivery timescales will be provided once your order has been processed. If there are any delays due to stock availability, we will contact you as soon as possible with the option to wait or receive a full refund.
Please note that certain products may be subject to specific distance selling or delivery regulations. If you are unsure about a product or its delivery terms, we recommend contacting us before purchase.
You can cancel your order within 14 days of receiving your goods, in line with UK distance selling regulations. Once you’ve notified us, you have a further 14 days to return the item. Please contact us by email, phone or in writing before sending anything back.
Items must be returned in original condition and packaging, including all accessories, manuals and any promotional items. The cost of return is your responsibility and we strongly recommend insuring the goods, as refunds cannot be issued for damaged or incomplete returns. If items show excessive handling, are missing components, or cannot be resold as new, a reasonable deduction may be made.
Please note that used headphones (for hygiene reasons) and custom or special-order items cannot be returned. If you need assistance arranging a return, we’re always happy to help.
Product Summary
The Pro-Ject Phono Box S3 B is a compact phono stage designed for customers who want to step beyond basic entry-level vinyl electronics and into a more serious, more flexible analogue setup. It brings Pro-Ject’s True Balanced concept into a more affordable part of the range, making it especially appealing for customers who want lower-noise vinyl replay and a clearer upgrade path for the future.
A big part of the appeal is the amount of cartridge matching flexibility it offers. The Phono Box S3 B is designed to work with both MM and MC cartridges, with front-panel loading options and adjustable gain to help you tune the phono stage more accurately to your cartridge and the rest of your system. It can also connect up to two turntables at once, with settings stored for each input, which makes it unusually versatile for its price point.
It is also built to feel like a genuine upgrade rather than just a feature-packed box. Pro-Ject uses a fully discrete, symmetrical gain stage along with steel and aluminium casework to help reduce interference and improve rigidity, all in the service of a cleaner, more refined sound. For customers wanting a compact phono preamp with balanced potential, serious adjustability and strong long-term system-building appeal, the Phono Box S3 B is an excellent choice.
Key Benefits
- True Balanced design gives you a clearer route into lower-noise, interference-resistant vinyl replay
- Works with both MM and MC cartridges, making it easier to match into a wide range of turntable systems
- Fully discrete symmetrical gain stage is designed to deliver cleaner, more refined sound than basic phono stages
- Front-panel loading controls make cartridge matching and setup changes much easier in day-to-day use
- Adjustable gain helps you match output level more accurately with the rest of your hi-fi system
- Can connect two turntables at once, with settings stored separately for each input
- Steel and aluminium casework helps shield the sensitive circuitry from outside interference
- Strong option for customers wanting a serious phono stage upgrade with real future system flexibility
- 2 years manufacturers warranty, extended to 3 years if registered with Pro-Ject within 4 months of purchase
Technical Specifications
Phono Stage Details
- Product Type: Entry-level true balanced phono preamplifier
- Compatible Cartridge Types: Moving Magnet (MM) and Moving Coil (MC)
- Circuit Design: Fully discrete and symmetrical gain stage
- Inputs: 1 x 5-pin mini XLR, 1 x pair RCA
- Outputs: Balanced and single-ended outputs
- Turntable Connectivity: Up to 2 turntables with input settings stored in memory
- Loading Options: Front-panel cartridge loading adjustment
- Gain Adjustment: Adjustable gain for source level matching
- Equalisation: Semi-passive RIAA equalisation stage
- Casework: Steel and aluminium chassis
- Colour Options: Silver or black
Weight & Dimensions
- Dimensions: Not clearly specified on the current official product page snippet or accessible source text I checked
- Weight: Not clearly specified on the current official product page snippet or accessible source text I checked
What’s in the Box
- Pro-Ject Phono Box S3 B phono preamplifier
- Power supply
- Product documentation
