Pro-Ject Tube Box S3 B Phono Pre-amplifier
SKU: 60209279541

Pro-Ject Tube Box S3 B Phono Pre-amplifier

Sale price$465.30 Regular price$517.00
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Ships within 48 hours · Estimated delivery Jul 7 - Jul 12

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Description

Pro-Ject Tube Box S3 B Phono Pre-amplifierBalanced audiophile tube phono stage Audiophile tube warmth The Tube Box S3 B is a audiophile phono preamplifier that brings true analog warmth to your vinyl playback. It features a fully symmetrical and discrete gain stage, balanced 5 pin mini XLR input, and balanced XLR outputs. Adjust settings easily from the front panel, and enjoy clean, interference free performance thanks to its robust aluminium chassis. Available in silver or black and made in

Balanced audiophile tube phono stage

Audiophile tube warmth

The Tube Box S3 B is a audiophile phono preamplifier that brings true analog warmth to your vinyl playback. It features a fully symmetrical and discrete gain stage, balanced 5-pin mini XLR input, and balanced XLR outputs. Adjust settings easily from the front panel, and enjoy clean, interference-free performance thanks to its robust aluminium chassis. Available in silver or black and made in Europe, the Tube Box S3 B is a compact yet powerful upgrade for any serious vinyl setup.

"B" stands for balanced

The symmetrical design is the real standout feature! Connect your turntable with the 5-pin mini XLR cable & profit of the balanced signal path. Symmetrical, or also called balanced, transmissions consist of a hot and a cold (also called + and -) signal. Both signal chains effectively carry the same musical information. A true balanced gain stage can now extract the final musical information out of the +/- signals and subtract, remove, all noise that could potentially be added along the transmission. As there are two separate signal chains, we also needed two individual amplifier sections. Definitely unseen in this price range & the best and cleanest amplifier for your phono signal!

Features

  • 5-pin mini XLR balanced input
  • Balanced XLR outputs
  • Fully symmetrical & discrete gain stage
  • Easy settings adjustment on the faceplate
  • 2x ECC83 tubes (replaceable)
  • MM & MC capable
  • Dual mono design
  • Semi-passive RIAA equalisation
  • Superior low noise / low distortion
  • Aluminium casing protects against interference
  • Available in silver or black
  • Made in Europe

Technical Specifications

  • Tube assembly: 2x ECC83 (12AX7)
  • Input impedance: 10, 50, 100, 1k, 47k ohms
  • Input capacitance: 50, 150, 300, 400 pF
  • Gain (+ 6dB using XLR Out sockets): 40, 45, 60, 65 dB
  • Signal / Noise ratio MM (40dB): 97dBV, 105dBV - 'A' weighted
  • Signal / Noise ratio MC (60dB): 83dBV, 88dBV - 'A' weighted
  • THD at 1 kHz: <0,005% MM, < 0,01% MC
  • THD (20Hz-20kHz): <0,1% MM, < 0,03% MC
  • RIAA-equalization curve accuracy: <0,4dB / 20Hz - 20kHz
  • Subsonic filter: at 20Hz with 18dB/octave
  • Input: 1x 5-pin mini XLR / 1x pair RCA phono sockets
  • Line-level output: 1x pair RCA, 1x pair XLR
  • Power supply DC: 18V/1000mA
  • Power consumption: 18V/800mA DC, <0.5 W in standby
  • Dimensions: 206 x 81 x 153 (164 with sockets) mm (W x H x D)
  • Weight: 1010g 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: 60209279541

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Mz. P.
Massapequa, US
★★★★★ 4
Cute and Comfy
Size: 8.5, Color: Brown
This shoe is cute. It is nice and comfy, but it is NOT brown. A caramel, maybe a tan, but NOT the color brown we see with the description. Not a chocolate brown as it appears or looks to be on the amazon post. It is NOT the deep description color that it shows to be. It is not. It is comfortable. It fors fit exact and it is still cute.
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Reviewed in the United States on April 13, 2021
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Rachel
Alexandria, US
★★★★★ 5
Beautiful heeled mule
Size: 7, Color: White
Great heeled mule. The fir is a little small/slim. And I do not have a wide foot. But they still fit and they are beautiful and go with anything spring and summer!!
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Reviewed in the United States on May 27, 2021
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Miss Lesa
Lexington, US
★★★★★ 3
Cute but overpriced
Size: 7, Color: Black
The shoe is cute but I would not purchase again because extremely overpriced! Cheaply made but comfortable. I have only tried them on in the house so I can’t rate wearing them for an extended period of time.
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Reviewed in the United States on May 29, 2026
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Amazon Customer
Massapequa, US
★★★★★ 5
Nice Shoe
Size: 5.5, Color: Black
I don't usually buy shoes online because you don't know about the comfort of the shoe, but I was pleasantly surprised with this shoe. Comfort is really good and the quality and style were just what I was looking for. So happy with this purchase. Shoe was also delivered as promised.
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Reviewed in the United States on April 24, 2022
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DT
Los Angeles, US
★★★★★ 1
One size too small
Size: 8.5, Color: Black
These run at least one size small. The sole is slick also. Order up for sure.
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Reviewed in the United States on January 30, 2022

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