SKU: 26306979805

Pro-Ject Phono Box DS3 B Phono Preamplifier

Sale price$546.30 Regular price$607.00
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Description

Pro-Ject Phono Box DS3 B Phono PreamplifierTrue Balanced, Dual Mono & Fully Discrete Audiophile Phono Stage A New Level of Balance THE NEW PHONO BOX DS3 B At Pro Ject, balanced connections were exclusive to our RS range of products until now. The Phono Box DS3 B model offers some of the high end features of the Phono Box RS2 at an affordable price and trusted Pro Ject quality. One of those is our new True Balanced Connection. High End Features and Limitless Loading Options The Phono Box DS3 B

True Balanced, Dual Mono & Fully Discrete Audiophile Phono Stage

A New Level of Balance

THE NEW PHONO BOX DS3 B

At Pro-Ject, balanced connections were exclusive to our RS range of products until now. The Phono Box DS3 B model offers some of the high-end features of the Phono Box RS2 at an affordable price and trusted Pro-Ject quality. One of those is our new True Balanced Connection.

High-End Features and Limitless Loading Options

The Phono Box DS3 B employs a steel chassis enveloped by aluminium panels. This construction offers very high rigidity and isolation against interferences, which is essential for the new technology inside. Magnetic wooden side panels are available separately as add-ons. You can connect up to two turntables simultaneously – all parameters for each input get stored in the memory.

Perfectly match the Phono Box DS3 B to a wide variety of cartridges. Load impedance can be set continuously via a potentiometer, a system invented by Pro-Ject Audio Systems, to adjust the impedance during playback and assess the impact of different loading options in real-time. No other manufacturer implements this feature as elegantly!

Balanced By Nature

Cartridges are balanced signal transducers by nature! Due to the internal wiring of MM cartridges, you'll need a 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 phono stages. And the best: any Pro-Ject turntable with RCA, miniXLR or 5P output can do it!

A TECHNICAL DEEP DIVE

The Phono Box DS3 B incorporates a true, fully balanced gain stage design. Whether you're using a single-ended RCA or balanced connection, both times the fully symmetrical gain stage can optimize the signal-to-noise ratios, feeding the fully passive and discrete RIAA equalization stage with the cleanest signal to work its magic on.

Entirely split passive equalization allows for better impedance matching and lower deviation from the ideal RIAA curve. The Phono Box DS3 B uses fully discrete audio circuitry. A discrete circuit is composed of disparate, individual electronic components, also called discrete components. Years of experience have proven that even the best Op-Amps do not come close to the neutral, natural, dynamic, and vivid presentations of discrete circuit.

TRUE BALANCED CONNECTION

The symmetrical design is the fundamental standout feature! Connect your turntable via the 5-pin mini XLR cable or standard XLR cables and enjoy the benefits of our new True Balanced Connection. 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

Limitless Loading

Steel & aluminium casework. Entirely discrete audio circuitry. Fully symmetrical gain stage. Split passive RIAA EQ. Dual mono. Balanced in & outputs. Stepless impedance matching.

True Balanced

Unleash the full power

Phono Box DS3 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: Stepless 10 – 1000 ohms or fix 47kOhms
Input capacitance: 50, 150, 300, 400 pF
Gain (+ 6dB using XLR Out sockets): 40, 45, 50, 55, 60, 65 dB
Signal / Noise ratio MM (40dB): 104dBV, 111dBV - ‚A‘ weighted
Signal / Noise ratio MC (60dB): 85dBV, 91dBV - ‚A‘ weighted
THD at 1 kHz: <0,001% MM, < 0,004% MC
THD (20Hz-20kHz): <0,005% MM, < 0,01% MC
RIAA-equalization curve accuracy: < 0,25dB / 20Hz - 20kHz
Subsonic filter: at 20Hz with 18dB/octave
Input: 1x 5-pin mini XLR / 1x pair XLR / 1x pair RCA phono
Line-level output: 1x pair RCA, 1x pair XLR
Wiring XLR sockets: 1 ground, 2 “hot” and 3 “cold”
Trigger In/Out: 12V on/off detector
Power supply DC: 18V/500mA
Power consumption: 18V/max.290mA DC, <0.5 W standby
Dimensions: 206 x 72 x 194 (205 with sockets) mm
Weight: 1480g 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: 26306979805

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4.6 ★★★★★
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Michael & Challice R.
Lowell, US
★★★★★ 5
HEAVEY Duty!
Color: Blue/Medium, Size: Blue
Almost not destructible! My dogs chew through 99% of the toys we purchase, but never this one! The medium size is good for our Doberman with jaws of steel!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 4, 2026
A
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ARAW
Lexington, US
★★★★★ 5
Great chew toy to keep around the house
Color: Blue/Medium, Size: Blue, Color: Blue/Medium, Size: Blue
This came highly recommended by the behavioural team at the animal shelter and it hasn't disappointed. It's interesting reading the reviews, because our power-chewer pit-mix who can get a chunk off a split antler in a matter of minutes, hasn't ever been able to get a bite out of this bone! This is a great play toy for her, because it's soft enough that we can throw it for her to fetch in the house without worrying about breaking/denting something and are able to pull it out of her mouth fairly easily once she brings it back (still hasn't learned "drop it!"). The bone isn't flavored, so she'll rarely go to it on her own to chew on, but we keep it near the couch so if she ever gets bitey, we have it close at hand to offer to her as a chewer. It's also entertaining to tuck it into her collar and have her figure out how to remove it to play with it (see photo for this game and size compared to 50lb mutt).
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 15, 2017
B
Verified Purchase
Britney
San Leandro, US
★★★★★ 5
Best bouncy bone!
Color: Orange/Large, Size: Orange, Color: Orange/Large, Size: Orange
My pups love these bones! They are soft and rubbery, but very durable. Had them for a little over 6 months and it has survived my extreme chewers and many tug of war games, and only has a few puncture marks! They bounce on my concrete floors and my pup loves to play fetch with this. Great purchase
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Reviewed in the United States on April 27, 2025
A
Verified Purchase
Amazon Customer
San Leandro, US
★★★★★ 4
Excellent for aggressive chewers
Color: Blue/Medium, Size: Blue
First I would like to say I think Jolly Pets are the best line of dog toys out there if you have an aggressive chewer. Their products have amazed me! And I am not being paid for this review. I have a 155 lb mastiff that is an excellent behaved boy but loves to destroy his toys. I had this bone in large and it held up excellent for about 4-5 months. I ordered it again in medium size by mistake and after 2 weeks it already has pieces missing...my fault. My only complaint is the medium size in blue smells like vanilla perfume. I can't wash it off. Although my handsome boy doesn't seem to mind. I just reordered in large. Also ordered a few other Jolly Pet toys as I am amazed at how they hold up. The "soccer ball" is my dogs favorite. It reinflates itself again and again no matter how much chewing or wear and tear its given. It's just magic!
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Reviewed in the United States on October 1, 2022
A
Verified Purchase
Annie Sameuchay
Waukegan, US
★★★★★ 5
This company makes great toys for pitts!!
Color: Blue/Medium, Size: Blue, Color: Blue/Medium, Size: Blue
Our pitt LOVES this toy. The rubber is reeeaally tough. It’s well designed because it’s a slippery surface. You can tell from the video there’s a lot of squeaking from him trying to get a good grip. He found a pretty good spot to hook his upper teeth into the crevasse, but his bottom teeth kept slipping. As a side note, I wouldn’t leave any toy home alone with him that’s about 3 inches or smaller because dogs can choke on it, but that doesn’t make this any toy or company any less amazing. For toys I would leave home with a power chewer, take a look at that 4inch red ball made by this same company. He hasn’t made a dent in that thing and you can put treats in it. :)
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Reviewed in the United States on March 5, 2025

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