SKU: 78054779565

Pro-ject Tube Box Ds3 B Phono Preamp

Sale price$630.00 Regular price$700.00
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Description

Pro-ject Tube Box Ds3 B Phono PreampTube Amplification This precision tube phono preamplifier benefits from outstanding circuit technology from Dr. Sykora and uses ultimate components. Versatile You can connect two turntables at the same time & easily set everything on the front plate. Each input settings are stored in the memory. Large 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 Hifi

Tube Amplification

This precision tube phono preamplifier benefits from outstanding circuit technology from Dr. Sykora and uses ultimate components.

Versatile

You can connect two turntables at the same time & easily set everything on the front plate. Each input settings are stored in the memory. Large 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 Hifi 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 extreme way.

B is for Balanced

Some turntables offer balanced or RCA outputs. 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.

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:           A weighted >87dBV
  • 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: 78054779565

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Shannon
Boise, US
★★★★★ 5
Satisfied with purchase
Color: Green, Size: 3 Pack
Purchased for outdoor work purposes and they're absolutely worth the purchase. Very durable and waterproof. I actually repurchased for extras. The color is great as well as the size, overall satisfied.
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Reviewed in the United States on March 8, 2026
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Michael D Vicars
Natrona Heights, US
★★★★★ 4
Pricey but nice.
Color: Orange, Size: 3 Pack
Nice pad, works as intended when wet and dry.
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Reviewed in the United States on January 29, 2026
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Peter D.
Waukegan, US
★★★★★ 5
"The" Standard for All-Weather Notebooks
Color: Black, Size: 3 Pack
This Rite In The Rain notebook is the leading brand for a reason. It works exactly as advertised, performing flawlessly in conditions where a normal notebook would be ruined. I’ve used alternative brands in the past and ran into issues with the paper or ink smudging, but I’ve had no such problems with this notebook. The weatherproof paper and sturdy cover ensure that your notes stay safe and legible, no matter the conditions.
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Reviewed in the United States on August 21, 2025
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Laura Schluns
Phoenix, US
★★★★★ 5
An Amazing product, that works
Color: Green, Size: 1 Pack
I bought the (Rite in the Rain - Green Tactical Note Book (All Weather) for my line of work with the sheriffs department. And when your note taking can be the difference between your job and keeping someone bad off the streets, it's important to ensure that your notes are going not only to last, but handle all situations (like weather). I recieved my notebook about 5 days ago, and decided to give it a try, First I noticed it looked and almost felt like ordinary paper, but with a more thick quality with it. I began to write simple phrases on the first page with a variety of writing utensils, I tried an ordinary pen, a pencil, a 0.5mm pen and pencil, ballpoint pens, and so on. Then I tore out the first page which was as easy if not easier than an ordinary notebook. I took it over to the sink area and began to run water on the paper, for about 2 minutes the water beaded off the paper with ease, i turned the water off and examined the paper, it was only wet on the surface, i wiped the excess water off and perfect, it felt like the original paper with no signs of any water damage. This is a great product for someone who may work in an outdoor environment or just near water I highly Recommend this product to anyone in the market for a notebook that not only has quality but is resistant to everyday situations, thanks (Rite in the Rain) for making a great product. If you have any questions or comments or conserns please use the comment section below, and I will answer as swiftly as I can Thanks.
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Reviewed in the United States on April 17, 2012
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Fish
Whiting, US
★★★★★ 5
Good quality
Color: Tan, Size: 6 Pack
These are very good quality. The only notepad that can stand up to extreme conditions. The 4X6 is the perfect size for back pockets.
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