SKU: 67123410189

Pro-Ject Phono Box S3 B

Sale price$157.05 Regular price$174.50
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Ships within 48 hours · Estimated delivery Jul 15 - Jul 20

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Description

Pro-Ject Phono Box S3 BPro ject Phono Box S3 B The Phono Box S3 B is an entry level phono preamplifier that offers a fully balanced design in a neat, small package. Pro Ject have packed this tiny chassis to the brim with high end features. One of those is our new True Balanced Connection. At Pro Ject, balanced connections were exclusive to their RS range of products until now. The Phono Box S3 B brings those features to an incredible new price point. High End Features The

Pro-ject Phono Box S3 B

The Phono Box S3 B is an entry-level phono preamplifier that offers a fully balanced design in a neat, small package. Pro-Ject have packed this tiny chassis to the brim with high-end features. One of those is our new True Balanced Connection. At Pro-Ject, balanced connections were exclusive to their RS range of products until now. The Phono Box S3 B brings those features to an incredible new price point.

High-End Features

The new Phono Box S3 B gain stage uses a fully discrete layout. A discrete circuit is composed of disparate electronic components, and individual devices. The amplifier section is built of single parts and doesn‘t use any integrated circuits! That makes for an extended and more costly design process but results in the best sound quality. The fully symmetrical gain stage can optimize the signal-to-noise ratios, feeding the semi-passive, RIAA equalisation stage with a clean signal to work on.

Balanced By Nature

Cartridges are balanced signal transducers by nature. Due to the internal wiring of MM cartridges, you'll need to upgrade your turntable with an MC cartridge to access the entirety of that balanced signal. Together with the new True Balanced Connection cables you'll be able to access high-end features that were previously only available on the most expensive of phono stages.

True Balanced Connection

Phono Box S3 B is ready for Project’s new True Balanced Connection. Single-ended RCA connections, quite literally, only use half of your cartridge's output. With one of the new True Balanced phono cables and an MC cartridge you'll hear details and dynamics, previously exclusive to only the most expensive phono stages.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 67123410189

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mposton10
Cuba, US
★★★★★ 5
Great Hub
Style: 5-in-1 Display Hub
Charges my MBP, also able to use this as a hub for music equipment! Provides many ports and very functional!
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Reviewed in the United States on March 31, 2026
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Verified Purchase
Jacques Parent Jr
Lexington, US
★★★★★ 5
Great hub for mirror less and cell phone
Style: 5-in-1 Display Hub
Works great with my Samsung Galaxy and a Sony FX30. It is an old S22 Ultra that I use as a monitor. The cell phone is dead but the screen and the wifi are fine.
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Reviewed in the United States on February 14, 2026
J
Joe CALA
Draper, US
★★★★★ 1
Request to make the product better, right angle usbc to host, quarter 20 thread
Style: 5-in-1 Display Hub
I have the old iteration and could really use a right angle usbc to host. Belkin - this is not a review, rather a request for this product on your next iteration. Phone filmmaking is on the rise right now, and this could be your opportunity for this product. Please make this a right-angle USB-C, and a bit longer, maybe 8 inches if you want your USB-C fixed. Or just make a hub without a fix USB-C to host, that lets the user attach their USB-C cables, and put a quarter 20 thread in the middle of the body. Actually we want a product that looks like the Blackmagic Pro Dock, but just a plain hub, smaller. 1 tb5 usbc to host, 2 tb4 usbc, a hdmi mini/regular and a 140w PD. A right-angle USB-C to host is extremely important for phone usage. Is it difficult to make it right angle?
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Reviewed in the United States on October 19, 2025
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Ángela Sánchez
Bozeman, US
★★★★★ 5
Cumplimiento
Size: 13.5 Little Kid, Color: Light Pink
Producto de gran calidad , acorde con lo escrito en la descripción. Llegaron antes del tiempo estimado
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Reviewed in the United States on May 14, 2026
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Kelly
Draper, US
★★★★★ 5
Very stylish
Size: 3.5 Big Kid, Color: Light Pink
My daughter was so excited to get these shoes. They are stylish and comfortable!
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Reviewed in the United States on April 22, 2026

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