Pro-Ject
Pro-Ject Phono Box S3
Pro-Ject Phono Box S3
An Austrian-designed standalone phono preamp for listeners who take their cartridge seriously.
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Why This Is Here
The Phono Box S3 is the step up from entry phono stages when you want adjustable loading and a noise floor that a better cartridge deserves. It lets you dial in the correct load impedance for MC cartridges — something a Mani won't do.
Who It's For
Listeners who have moved past MM cartridges or who want a phono stage that won't hold back a stylus upgrade.
Build & Materials
MM and MC compatible, adjustable loading (47k ohms to 100 ohms for MC), low-noise discrete circuitry, silver-plated RCA connections. Made in Slovakia.
- Compatibility
- MM + MC
- Loading
- Adjustable 47k-100 ohms
- Gain
- 40-60dB
- Connections
- Silver RCA in/out
- Origin
- Slovakia
The Phono Box S3 is the step-up phono stage for a serious turntable. MM and MC inputs, adjustable loading, better power supply than the entry options. Pro-Ject has been building phono stages longer than almost anyone. Worth the upgrade if the cartridge is worth it.
Shipping & Returns
Shipping & Returns
Orders ship within 1–3 business days. Full shipping details →
Returns accepted within 30 days of delivery. Return policy →
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