Which ECC83 / 12AX7 tubes are the best for the Pro-Ject Phono Box?

Most Pro-Ject tube devices use the following tubes.

Suitable for: Tube Box S2, DS2, DS3 B, RS2, as well as the classics Tube Box S, DS and SE II.

Our top recommendations:

Favorite: ECC83 Premium S4A with optional balanced selection. Very spacious, musical and extremely low-noise. Our best recommendation for a balanced sound.

12AX7 Tung-Sol with optional balanced selection. Warm, rounded sound – ideal for relaxed long-term listening and more analytical systems.

Genalex ECC83 Gold Lion (BTB V1 Set). Outstanding resolution and dynamics. Brings out the finest details perfectly, with slightly higher self-noise than S4A.

Why buy from BTB? Phono preamps do not forgive weak selection. We test our tubes specifically for low noise and freedom from microphonics, so your records sound interference-free.