SKU: 74356156437

Pro-Ject Phono Box S3 B

Sale price$283.05 Regular price$314.50
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Ships within 48 hours · Estimated delivery Jul 17 - Jul 22

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Description

Pro-Ject Phono Box S3 BEntry Level True Balanced Phono Stage A New Access to High End Features THE NEW 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. Weve 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 our RS range of products until now. The Phono Box S3 B brings those

Entry-Level True Balanced Phono Stage

A New Access to High-End Features

THE NEW 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. We’ve 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 our RS range of products until now. The Phono Box S3 B brings those features to an incredible new entry level.

True High-End For the New Entry-Level

Our Phono Box S3 B comes in complete new casework. The bigger size enabled us to bring a completely new feature set that was never seen before in this price range. The new steel & aluminium case also offers very high rigidity and isolation against outside interferences, which is essential for the new technology inside.

Connect up to two turntables simultaneously – all parameters for each input get stored in the memory. You can perfectly match the Phono Box S3 B to a wide variety of cartridges.

Use the gain setting to accurately match the output to other sources like CD players or streaming devices. Ultra-low values like 50 pF or 10 ohms allow you to account for all situations.

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 our 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. And the best of all: any Pro-Ject turntable with RCA, miniXLR or 5P outputs can do it.

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

TRUE BALANCED CONNECTION

The symmetrical design is the fundamental standout feature! Connect your turntable via the 5-pin mini XLR cable and enjoy the benefits of a balanced signal path. A truly balanced gain stage can extract the final musical information, effectively filtering out any noise from interferences stemming from our noisy, modern homes (household appliances, wifi & Bluetooth, power cables, audio amplifiers).

High-End Features

For the Entry-Level

Steel & aluminium casework. Fully discrete & symmetrical gain stage. Balanced in & outputs. Cartridge loading options on front panel.

True Balanced

Unleash the full power

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

Handmade in EU

Since 1991

Made in Europe by technicians, engineers and designers with decades of experience. Expert craftsmanship. Sustainable products with a long lifetime. Audiophile audio performance.

Input impedance: 10, 50, 100, 1k, 47k ohms
Input capacitance: 50, 150, 300, 400 pF
Gain (+ 6dB using XLR Out sockets): 40, 45, 60, 65 dB
Signal / Noise ratio MM (40dB): 103dBV, 110dBV - 'A' weighted
Signal / Noise ratio MC (60dB): 85dBV, 90dBV - 'A' weighted
THD at 1 kHz: <0,001% MM, < 0,005% MC
THD (20Hz-20kHz): <0,008% MM, < 0,01% MC
RIAA-equalization curve accuracy: <0,3dB / 20Hz - 20kHz
Subsonic filter: at 20Hz with 18dB/octave
Input: 1x 5-pin mini XLR / 1x pair RCA phono sockets
Line-level output: 1x pair RCA, 1x pair XLR
Power supply DC: 18V/500mA
Power consumption: 18V/170mA DC, <0.5 W in standby
Dimensions: 206 x 55 x 153 (164 with sockets) mm (W x H x D)
Weight: 930g without power supply
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: 74356156437

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4.2 ★★★★★
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Verified Purchase
Donna C.
Louisville, US
★★★★★ 5
Dog loves this ball
Our dog loves it!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 15, 2026
E
Verified Purchase
Ella Belle
Battle Creek, US
★★★★★ 5
Dog is in love with this Toy!
Color: Assorted, Size: Medium
This is a super great dog toy & one of the best we have purchased for miss "destroy the toy" dog! I have an Australian Cattle Dog who has a pretty big chomp reflex. She destroys most all of her ball toys in just a few minutes because she chomps so hard. So far, this is the only "open type" of dog ball toy she has not ruined quickly. It's actually lasted over a year so far! It is showing some wear & tear & a couple ares have almost been chomped through, but that would be expected with the way she chomps on it. She absolutely adores this toy & it is her total favorite! It has been well worth the money & then some for her. I've already bought a couple of "spares" but she is still playing with the original one I bought. Please note: I never, ever leave it alone with her! I use it only to throw or kick & for her to chase & retrieve. I try not to let her just chew & chomp on it, but that is what she'd really like to do. We play with it all year long, even in the snow. It's fun in winter because it does not sink & get lost in deep snow as quickly as a tennis ball sized toy would. It fills up a bit with snow, but that seems to make it even more fun for my dog. I highly recommend this toy. I just wish JW would offer it in some other brighter colors besides the blue. 01/06/2016 Update: My dog still is playing with this very same Hol-ee Roller X Extreme! I'd bought her a couple of spares but this 1st one is still holding up under her chompers! It's worn looking but has not torn or broke yet. I do not let her just sit and chomp on it though. It used as a retrieving and chasing toy, but she does get a few goods chomps in each time she gets it. We play with this toy basically every single day, so I'd say this is a very durable dog toy and the best one I have bought ! I highly recommend it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 19, 2015
B
Verified Purchase
Begneryuray Sanchez
Omaha, US
★★★★★ 5
A Giggling Good Time for My Furry Friend!
Color: Red, Size: Medium
My dog absolutely loves the JW Pet Hol-ee Giggler Dog Toy Puzzle Ball! Here's why I think it's a great choice: Pros: Engaging Giggle: The giggle sound is so unpredictable and fun that it truly keeps my dog entertained. He goes nuts chasing it around and trying to figure out how to make it giggle more. Durable Rubber: This toy has held up surprisingly well to some intense chewing and playing. The natural rubber is tough but still gentle on his teeth. Versatile: It's more than just a noisemaker! It's great for fetch, and I can even stuff it with treats to turn it into a puzzle toy. Cons: Giggle Mechanism: The giggle tube inside can be a little delicate. If your dog is a super aggressive chewer, they might be able to dismantle it. Not for Quiet Time: If you want a silent toy, this isn't it! The giggle can be quite loud when your dog is really going at it. Overall: I would definitely recommend the JW Pet Hol-ee Giggler to other dog owners. It's a fun, durable, and unique toy that provides a lot of stimulation for pups. Just be aware of the potential for the giggling mechanism to break under heavy chewing, and be prepared for some added noise!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 29, 2024
H
Verified Purchase
honey17
Massapequa, US
★★★★★ 5
DIEGO'S FAVORITE OUTSIDE BALL!
Color: Assorted, Size: Medium
JW PET COMPANY HOL-EE ROLLER EXTREME This is the second HOL-EE ROLLER ball we have purchased for our Diego. He LOVES these! He now owns a black one and a blue one. He loves to toss these around the yard all by himself or have us throw them to him. He looks so adorable when he comes running back to us, with the HOL-EE ROLLER in his mouth and he has the sweetest expression on his face and is so happy he is prancing! He is a rescue Pit mix from PR. He survived Hurricane Maria and was there before, during, and after. If he could only tell us his tale. The ball is sturdy. The honey comb design gives your baby the ability to grasp and hold the ball. Diego also likes to hold the ball down and gnaw on it. The ball has proven to be safe against his little vampire teeth. The blue ball was in our yard the entire winter during every type of element you can think of. It is is great shape. Diego plays with these balls constantly while outside. They are sturdy and he is able to get a nice grip on them. These balls are tested by the company to make certain they do not contain any harmful chemicals. The ball has plenty of bounce to it too! The balls come in different colors but which color you receive will be a surprise. JW products are AWESOME. Diego also has a trio of smaller indoor balls that he has had for three years now. They are still like brand new. He loves to play with these. They have grips on the outside for him to try to chew on, but he can't destroy them. JW has other types of pet toys and products available for you. Check them out. Your dog will thank you.
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Reviewed in the United States on June 29, 2020
M
Verified Purchase
Mari Sned
Massapequa, US
★★★★★ 4
Most favorite
Color: Red, Size: Medium
My fur babies love these balls they are their favorite. Any size dog can play with it because of how it's made. it easy to play with. It's made with a lot of opening and is made of a soft rubber. My Shepherd pup and Boston's love to play with it, and I had to buy 3 so they don't fight over it. The giggler will break easy and even the first day on rough riders, but they can still enjoy the ball itself even without the giggler. It size is about 4in. If Amazon gave halves Id give it a 3.5 because of the giggler breaking so easily but otherwise my girls still love this ball.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 13, 2026

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