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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A. Beauto
Fort Morgan, US
★★★★★ 5
Stylish and great value!
Color: Medium Grey, Size: 14
This grey suit was a great find for a school ceremony and will definitely be used again. The neutral color makes it easy to pair with different shirts and ties, and it has a modern, clean-cut look. The jacket and pants fit nicely after a quick press, and the quality was better than I expected for the price. It lost a star only because the waist on the pants needed a slight adjustment, but overall, we’re very happy with it!
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Reviewed in the United States on October 10, 2025
N
N. Hale
Carnegie, US
★★★★★ 3
Runs big, and fabric may not be same color as picture
Color: Medium Grey, Size: 16, Color: Medium Grey, Size: 16
This suit was a good find for us, as we usually dress up for church, and my 13 yo son often wears suits. He normally wears a size 16, so that’s what we ordered, and in dark charcoal gray. The suit we got was a light, heathered gray that didn’t look much like the one in the picture. It was very wrinkly and thin, and a little scratchy. Also, the sleeves were way too long and the torso cut of the jacket was pretty wide. The pants were very large in the waist, but fit him decently in the length (he’s 5’4” and weighs 90 lbs). Overall the suit looked like it was drowning him, so I would order a size down unless you have a larger child/teen. Because of the ill fit, I haven’t had the chance to see what the suit looks like on him as it’s supposed to, but I guess I’ll return it or wait a year or two until he fills it out a bit more. Not overly impressed with the quality, so I’m not sure I’d pay $55 for this one again.
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Reviewed in the United States on October 20, 2025
J
Verified Purchase
J. Davis
Draper, US
★★★★★ 5
Sharp looking suit!!
Color: Beige, Size: 16
This suit was so sharp on my son! It was comfortable and just the look we wanted. Sizing was true to sizes and the color was just as pictured! Would definitely recommend!!!
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Reviewed in the United States on April 8, 2026
T
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Tangela Scott
San Leandro, US
★★★★★ 2
Orange suit
Does not look like the pic. Color not the same
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Reviewed in the United States on April 19, 2026
B
Verified Purchase
Blue Elf
San Leandro, US
★★★★★ 5
Great Quality.
Color: Beige, Size: 14, Color: Beige, Size: 14
Bought this for my son to attend a wedding on the beach. It looks very good, the color is beautiful and is true to size. He is 14 so I got size 14. He is 5’7” and weighs about 110 lbs. the pants length was perfect too. Just needs a little ironing.
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Reviewed in the United States on March 21, 2026

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