SKU: 95050487658

Pro-Ject Phono Box DS3 B Phono Preamplifier

Sale price$546.30 Regular price$607.00
Save 10%

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 13 - Jul 18

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

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: 95050487658

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.1 ★★★★★
Based on 1538 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
T
Verified Purchase
Tarra
Natrona Heights, US
★★★★★ 5
great shelves
Color: C. White - Modern Minimalist Style, Number Of Shelves: 3, Size: 36inches
These are a a great set of floating shelves! They were easy to install, feel sturdy, and look clean and modern on the wall. The set of three is perfect for displaying decor, photos, plants or small storage items while adding extra space without taking up room. Great quality, stylish, and a simple way to upgrade any space. They work perfect for my figurines to be displayed.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 19, 2026
K
Verified Purchase
KadeeH
Phoenix, US
★★★★★ 5
Great shelves
Color: A. Black - Universal Classic Style, Number Of Shelves: 3, Size: 22.5inches
Easy to hang and look great in my office. I love the little divot along the edge. Helps to keep pictures from sliding.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 29, 2026
C
Verified Purchase
Crystal
Battle Creek, US
★★★★★ 5
Exactly what I needed for my bathroom refresh.
Color: B. Rustic Brown - Americana Farmhouse Style, Number Of Shelves: 2, Size: 22.5inches, Color: B. Rustic Brown - Americana Farmhouse Style, Number Of Shelves: 2, Size: 22.5inches
I bought these floating shelves in the color Rustic Brown to replace a bulky storage shelf that was making my bathroom feel cramped, and they completely transformed the space. The wood finish looks much more expensive than I expected, and once installed they gave the bathroom a clean, modern, spa-like feel without taking up visual space. Installation was straightforward overall. I mounted one screw in the center into a stud and used drywall anchors for the remaining hardware, and the shelves feel very sturdy. They sit flush against the wall and don’t sag or wobble. I especially love how slim they are while still being deep enough to hold everyday bathroom items, decor, candles, skincare, and small baskets. The color worked perfectly with my bathroom vanity and mirror trim, and the floating design instantly made the room look more organized and intentional. Huge upgrade for a small space. Definitely recommend if you want functional storage that also looks elevated and minimalist.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 30, 2026
A
Verified Purchase
Amazon Customer
Belleville, US
★★★★★ 4
Good Shelves
Color: B. Rustic Brown - Americana Farmhouse Style, Number Of Shelves: 3, Size: 22.5inches
These shelves are really nice quality and look as advertised. The hardware included was great quality, metal drywall anchors and good screws. They were easy to install, and make even/level with each other. My only gripe is the price, but I'm very satisfied with the product overall.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 12, 2026
P
Verified Purchase
Patricia G.
Port Orchard, US
★★★★★ 5
Attractive, easy to install, nicely equipped hardware package.
Color: B. Rustic Brown - Americana Farmhouse Style, Number Of Shelves: 2, Size: 22.5inches
These are pretty doggone nice shelves and I appreciate the fact that they are not made of solid particle board. Yes they are made of an engineered product, but they are lightweight and strong…and look better than particle board products and more costly than their actual price. Easy installation system with the bracket…not fussy like some are. An especially thoughtful touch is the variety of hardware that is included. Also a tiny level for use when installing them. What? …So they can be installed correctly? I was pleasantly surprised by this inclusion.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 29, 2026

recommand products