Updated 15 May 2026
| Brand | Pro-Ject |
| Category | Audio Equipment |
| Available at | 1 UK stores |
| 90-day avg | £529.00 |
Pro-Ject
Pro-Ject Tube Box S3 B Balanced Audiophile Tube Phono Stage Black
£529.00Fair Price
Cheapest at AV.com · 1 store
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PRICE HISTORY
Current
£525
Change
+12.1%
Avg
£503
Low
£460
High
£544
Volatility
4.4%
PRODUCT DESCRIPTION
- The Pro-Ject Tube Box S3 B Phono Stage is ideal for vinyl enthusiasts looking to unlock greater warmth detail and flexibility from their turntable setup. It offers a true balanced signal path with both mini XLR and standard RCA inputs allowing you to connect two turntables at once. Input settings are stored separately for each making it easy to switch between setups without losing your preferences. Cartridge matching is simple thanks to the wide range of gain capacitance and impedance options all of which are adjustable from the front panel. Inside twin ECC83 tubes bring a rich analogue sound while a fully symmetrical dual-mono design ensures the cleanest possible amplification. Balanced XLR outputs offer interference-free connection to your amp ideal for low-output cartridges or longer cable runs. Housed in a rigid aluminium chassis and available in black or silver the Tube Box S3 B is a compact but powerful addition to any serious vinyl system.