SKU: 54128929499

Pro-Ject Tube Box S2

Sale price$364.05 Regular price$404.50
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Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 3 - Aug 8

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Description

Pro-Ject Tube Box S2Tube phono preamplifier Innovative miniature sized phono preamplifier with tube output and high end sound! Tube Box S2 is our very first product to feature a fully discreet circuit design without using any operational amplifiers (OpAmps). It also is the first product to come with replaceable tubes for tube rolling and sound shaping. This gives the customer many options to pick from and alter the sound signature to his preference. Tube Box S2 will give

Tube phono-preamplifier

Innovative miniature sized phono preamplifier with tube output and high end sound!

Tube Box S2 is our very first product to feature a fully discreet circuit design without using any operational amplifiers (OpAmps). It also is the first product to come with replaceable tubes for tube rolling and sound-shaping. This gives the customer many options to pick from and alter the sound signature to his preference. Tube Box S2 will give a full and relaxed laid back sound with lush mids, just like you would expect it from a much bigger high end tube phono pre-amplifier. It offers support for both MM and MC cartridges and comes with many gain settings to be switched on the front panel. Five variable input impedance settings are available to adjust to any MM cartridge, the 47k ohm input impedance setting is fixed and suited for high output MC cartridges. The aluminium/metal casing is adapted to our DS2 line in looks and protects against vibrations and electromagnetic interferences for superior sound.

A true high end solution in a much smaller package!

Features

  • Suitable for MM and MC cartridges
  • Precise RIAA equalisation in two parts, passive/active
  • Fully discreet circuit design without OpAmps
  • 2x ECC83 tubes (replaceable)
  • Front-sided Subsonic filter button
  • Front-sided Gain control
  • Ultra low noise circuitry with FET input stage
  • Dual mono circuitry for optimized channel separation
  • Polystyrene capacitors used where possible
  • Gold-plated RCA in- and outputs
  • External power adaptor and multiple internal power supplies
  • Well-filtrated high-voltage anode power supply
  • Sandwich alu/metal casing protects from vibrations and electromagnetic interference
  • Available in silver or black
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: 54128929499

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4.0 ★★★★★
Based on 13 reviews
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Verified Purchase
Ron Swanson
Port Orchard, US
★★★★★ 5
solid product. would buy again
Size: 2 ft, Style: USB-C
well priced. fast shippingg. high quality feel. works as described. so far so good
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 2, 2026
M
Verified Purchase
MikeInColorado
Chelsea, US
★★★★★ 5
Good for the price. Some limitations
Size: 0.7 ft, Style: USB-C
These work well. Make sure you don't put too much current draw on it. In my case I'm using it just for a keyboard and mouse. When I added a 2.5 inch HDD it stopped working. Re-read the instructions and sure enough power draw is the problem. BUT - it still works well for my application as long as I don't expect too much power delivery.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 29, 2026
C
Verified Purchase
Carlos E. Read
Dallas, US
★★★★★ 4
Very good product
Size: 2 ft, Style: USB-C
This is the second one I order. This time, the blue LED light is so weak, that is difficult to tell it is connected. But it works, and works very well! I would buy another, if I needed it.
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Reviewed in the United States on April 8, 2026
R
Verified Purchase
Robert Kunzman
Massapequa, US
★★★★★ 5
Great value!
Size: 2 ft, Style: USB-C
I like it. It works perfectly, it is fast, it is slim, it is durable, and it is inexpensive.
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Reviewed in the United States on June 3, 2026
S
Verified Purchase
Spencer
Phoenix, US
★★★★★ 5
Great for adding USB ports to any USB-C device.
Size: 0.7 ft, Style: USB-C
I needed this to allow for more USB connections on my laptop. It is totally compatible with any USB-C device. I like the small blue LED on it that shows it is powered on. It's very small and lightweight and inconspicuous in design. Love the value for the price.
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Reviewed in the United States on March 21, 2026

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