SKU: 35913790297

Pro-Ject Phono Box S3 B Phono Preamplifier - Open Box

Sale price$251.55 Regular price$279.50
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Ships within 48 hours · Estimated delivery Jul 24 - Jul 29

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Description

Pro-Ject Phono Box S3 B Phono Preamplifier - Open BoxCondition Report: Open Box In new condition, tested and working. Very minor marks on front panel chassis. Box in decent shape. Includes power supply and manual. Box: Yes Shipping Included SN: 22A009891 Product Information: High End Features at an Affordable Price The Phono Box S3 B is a 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

Condition Report:

Open Box

In new condition, tested and working. Very minor marks on front panel/chassis.

Box in decent shape. Includes power supply and manual.

Box: Yes - Shipping Included 

SN: 22A009891

Product Information:

High End Features at an Affordable Price

The Phono Box S3 B is a 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 their new True Balanced Connection. When used in combination with a Pro-Ject turntable with a 5-pin balanced output and 5P to XLR cable, you can achieve a totally balanced connection, minimising noise and delivering a breathtaking analogue signal.

Until now, balanced connections were exclusive to the RS range of products. The Phono Box S3 B brings those features to more affordable products.

Fully Discrete and Symmetrical Gain Stage

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 optimise the signal-to-noise ratios, feeding the semi-passive, RIAA equalisation stage with a clean signal to work on.

Shipping Notes
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Exchange/Return Notes
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  • Final sale items are not eligible for returns or exchanges.
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SKU: 35913790297

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Jess
West Palm Beach, US
★★★★★ 5
Comfy
The most comfortable Sandals I own!
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Reviewed in the United States on April 7, 2026
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Avid Reader
Lake Worth, US
★★★★★ 5
More comfortable than flats!
Size: 8.5, Color: Bay Fog
I love these sandals! They run true to size, and they’re sooo comfortable. I was worried about getting fakes, but these were the real deal. The color is lovely (light purple). The foot bed can get dirty, but I find them to wash up nicely (by hand, not machine). I have purchased two more colors since! So much better than flats!
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Reviewed in the United States on November 9, 2025
S
Verified Purchase
Siyu
Carnegie, US
★★★★★ 5
Comfy dual-mode sandals
Cute, quite comfy to walk in and love the support of the heel strap! It is not as comfy if using in slipper mode because the straps don’t keep your foot tight enough. I am usually a 8.5 but it runs slightly small so I switched up to a 9.
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Reviewed in the United States on June 25, 2025
T
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The Dude
Massapequa, US
★★★★★ 4
More blue than purple
Size: 4.5 Toddler, Color: Celeste
Not the same color as shown. The color is more blue
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Reviewed in the United States on May 5, 2025
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Verified Purchase
Tiffany
New York, US
★★★★★ 5
Daughter approved
Size: 1 Little Kid, Color: Turquoise/Multi
My daughter picked out these shoes and she absolutely loves them.
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Reviewed in the United States on May 9, 2026

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