SKU: 67804942007

Pro-Ject Tube Box DS3 B True Balanced Phono Preamplifier

Sale price$697.05 Regular price$774.50
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Description

Pro-Ject Tube Box DS3 B True Balanced Phono PreamplifierHigh End Tube Sound The Tube Boxes have been an integral part of our product portfolio for many years. Now, the new Tube Box DS3 B adds balanced in and outputs to the beloved tube amplification. This precision tube phono preamplifier benefits from outstanding circuit technology from Dr. Sykora and uses ultimate components. Cartridge loading options You can connect two turntables at the same time & easily set everything on the front plate. Input

High-End Tube Sound

The Tube Boxes have been an integral part of our product portfolio for many years. Now, the new Tube Box DS3 B adds balanced in- and outputs to the beloved tube amplification. This precision tube phono preamplifier benefits from outstanding circuit technology from Dr. Sykora and uses ultimate components.

Cartridge loading options

You can connect two turntables at the same time & easily set everything on the front plate. Input settings are stored in the memory, and ranges from 40dB up to 65dB are possible. You can perfectly match it with a wide variety of cartridges and integrate it into the rest of your hi-fi system, matching the volume levels accurately to other sources like CD players or streaming devices. Load impedance can be set continuously via potentiometer, a system invented by Pro-Ject Audio Systems.

It allows you to seamlessly adjust the impedance during playback and immediately assess the impact of different loading options. This is necessary to find just the right load impedance for your cartridge. No other manufacturers implement this feature in this way.

Balanced Signal Transmission

Connect your turntable either with the 5-pin mini XLR cable or standard XLR cables & profit from the balanced signal transmission. Symmetrical, also called balanced, transmissions consist of a hot and a cold (also called + and -) signal. Both signal chains effectively carry the same musical information. The Tube Box DS3 B can extract the final musical information out of the +/- signals and remove all noise that was potentially added along the transmission. All components including tube output and polypropylene capacitors are audiophile grade and guarantee a breathtaking sound experience.

Technical Specifications

  • Tube assembly: 2x E88CC / 6922
  • Input impedance: Stepless 10-1000 Ohms, fix 47 kOhms
  • Capacitance: 50 / 150 / 300 / 400 pF
  • Gain (+6dB using XLR Out): 40 / 45 / 50 / 55 / 60 / 65 dB
  • Output voltage typically: 500 mV/1kHz at 5mV/1kHz (at 40dB)
  • Signal-to-noise ratio: >87dBV -, A weighted
  • THD: < 0,03%
  • RIAA curve accuracy: +/- 0,5dB/20Hz - 20kHz
  • Subsonic filter: at 20Hz with 18dB/octave
  • Input: 1x 5-pin mini XLR / 1x pair XLR / 1x pair RCA phono
  • Output: 1x pair RCA, 1x pair XLR
  • Power supply: 18V/1000mA DC
  • Power consumption: max 750 mA DC / < 0,5 watt standby
  • Dimensions W x H x D: 206 x 70 x 194 mm
  • Weight: 1560g (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: 67804942007

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4.3 ★★★★★
Based on 26 reviews
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Verified Purchase
Cheri Asher
Omaha, US
★★★★★ 1
Terrible product
These made my dog very sick. The chemical smell alone is too much. Should not be aloud for puppies to chew on .
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 30, 2026
K
Kat McC
Phoenix, US
★★★★★ 5
Easy to destroy, better for dogs who are light on their toys
My dogs absolutely loved these right away, the squeaker grabbed their attention instantly, and they had a blast playing with them. That said, these are made of a pretty thin latex material, and my dogs immediately shredded them. They didn’t last long at all, so I’d definitely consider these more of a short-term or supervised toy rather than something durable. Because of that, I’d only recommend them if you have dogs that aren’t heavy chewers or that you know won’t try to swallow pieces. Otherwise, they can become a bit of a mess quickly. Overall, fun toys that dogs clearly enjoy, but not built for durability.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 23, 2026
M
MobiusBookReview
Pawtucket, US
★★★★★ 4
A Funny Lesson in Toy Durability
I actually have two very different reviews for these toys. First up was the Welsh Terrier, who weighs all of 8 pounds and absolutely destroyed the pink one. The squeaker was done in under five minutes, and the poor little toy lost its ears in less than three. So for some dogs, these may not last long at all. Now for review number two: my 45-pound Shar Pei is having an absolute blast with the blue and orange toys. He shakes them, pulls on them, squeaks them nonstop, and even tosses them around, and so far they are still in perfect shape after a few days of regular play. So in my experience, durability really seems to depend on the dog and probably which toy in the set they latch onto first. They are definitely fun, soft, and engaging squeaky toys, but if your dog is a determined little destroyer, just know they may not hold up for long. For my bigger pup, though, they have been a hit.
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Reviewed in the United States on March 6, 2026
K
Verified Purchase
KIM J.
West Palm Beach, US
★★★★★ 5
Eldestructo Jack
To say my pup loved them was an UNDERSTATEMENT. Within 12 hrs what I bought for 3 dogs has become 1 dogs . He literally has ripped the heads off. I wish a lil more durable but hey he love each one. He is special lil man who can tear anything up.
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Reviewed in the United States on April 20, 2026
S
S. H.
Grantham, US
★★★★★ 5
Holds Up Well So Far – Nice Multi-Texture Toy
We picked up this rope plush for our dog, and overall it’s been a solid addition to the toy bin. The combination of soft plush and rope makes it more interesting than a standard stuffed toy. Our dog likes to chew on the rope sections and carry it around by the neck, and it’s held up better than most plush toys we’ve tried. The stitching seems reinforced in key areas, and even after several play sessions (including some light tug), it hasn’t come apart. That said, the size is something to pay attention to. This seems better suited for small to medium dogs or for supervised play if your dog is rough with toys. Also, while it does have a squeaker, it’s not overly loud, which could be a plus or minus depending on your preference. Overall, it’s a fun, well-designed toy that mixes textures nicely and keeps our dog engaged. Just match it to your dog’s play style and expectations for durability.
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Reviewed in the United States on March 22, 2026

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