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Pro-Ject / Phono Stage

Pro-Ject PHONO BOX S3 B phono stage

Pro-Ject PHONO BOX S3 B phono stage

Regular price €399,00 EUR
Regular price Sale price €399,00 EUR
Sale Sold out
Product VAT €69,24 included (21%).
🟢Insured Shipping from:  €3,00
🚚Estimated insured delivery:  09 Nov 2026 – 11 Nov 2026 LV · LT · EE
  • 🚚 Delivery in 1-4 days in the Baltics. 2-8 days EU
  • 💰 14 days return
  • 🔒 Secure payment: PayPal, 💳card, invoice
  • 🛡️Shipping insurance
  • 🟢 2 years warranty
  • 🧱 Installation service

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Shipping Terms

  • Shipping method: Standard
    Shipment cost:
  • EU 25€
  • LT, EST 6€
  • LV 3€
  • RU, USA 200€
  • Other countries 200€
  • Dispatched usually 2 - 5 business days after order placement
  • Some times, dispatched up to 20 business days, we will inform additional, after order placement.

https://premiumhifi.lv/policies/shipping-policy

🧾 Overview

The Pro-Ject Phono Box S3 B is a true-balanced MM/MC phono stage built around a symmetrical, fully discrete gain section. It adds 5-pin mini-XLR balanced input and XLR balanced output to conventional RCA connectivity, while front-panel loading and gain options make it suitable for a wide range of cartridges.

✅ Key Features

  • ✅ True balanced signal path with 5-pin mini-XLR input
  • ✅ Balanced XLR and unbalanced RCA outputs
  • ✅ Fully symmetrical and discrete gain stage
  • ✅ MM and MC cartridge support
  • ✅ Dual-mono design with semi-passive RIAA equalisation
  • ✅ Multiple impedance, capacitance and gain settings
  • ✅ Switchable 20 Hz subsonic filter
  • ✅ Rigid steel and aluminium enclosure made in Europe
📊 Technical Specifications ▼
Parameter Value
Cartridge support MM / MC
Input impedance 10 / 50 / 100 Ω; 1 kΩ; 47 kΩ
Input capacitance 50 / 150 / 300 / 400 pF
Gain 40 / 45 / 60 / 65 dB; +6 dB via XLR output
Inputs 5-pin mini-XLR; stereo RCA phono
Outputs Stereo RCA; stereo XLR
Subsonic filter 20 Hz, 18 dB/octave
Dimensions 206 × 55 × 153 mm; 164 mm including sockets
Weight 0.93 kg without power supply

📦 What’s in the Box

  • 📦 Pro-Ject Phono Box S3 B
  • 🔌 External power supply

🔄 Compatibility

Compatible with MM and MC cartridges. For a fully balanced phono chain, pair a balanced-capable turntable/cartridge connection with the 5-pin mini-XLR input and use the XLR output to a balanced preamplifier or integrated amplifier.

📦✈️ Shipping & Returns

  • 📦 Insured worldwide delivery
  • 🔄 14-day return policy
  • 🛡️ 2-year EU warranty

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⚠️ Warning

Balanced phono may lead to measuring cable routes with considerably more enthusiasm than the rest of the household expects.

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