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Overview

Unlock true balanced sound with the Pro-Ject Phono Box S3 B. This dual-mono phono preamp supports MM and MC cartridges, delivering detailed, low-noise audio via a fully discrete gain stage. With convenient front-panel controls for precise impedance and gain matching, it ensures the perfect setup for your turntable. Experience audiophile performance in a compact design.

Pro-Ject Phono Box S3 B Balanced MM/MC Phono Preamplifier - Black

Model: Phono Box S3 B
Web Code: 19656671
Sold and shipped by | 4.5 seller rating (242 reviews)

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Warranty

Check with the manufacturer for details.

For Quebec residents: See the Availability Guarantee disclosure in the Specifications section below.

Elevate your vinyl listening experience with the Pro-Ject Phono Box S3 B, an entry-level audiophile preamplifier that brings high-end "True Balanced Connection" technology to a compact form factor. Designed for discerning listeners, the S3 B features a fully discrete, dual-mono gain stage that optimizes signal clarity and dynamic range. By using a balanced connection with a compatible turntable and cartridge, you can effectively eliminate noise and interference, resulting in a deep, silent background and breathtaking detail.

Unlike traditional preamps that require fiddling with tiny dip switches on the back, the Phono Box S3 B places total control at your fingertips. The sleek steel and aluminum chassis houses intuitive front-panel buttons, allowing you to fine-tune gain, impedance, and capacitance settings instantly. Whether you are using a Moving Magnet (MM) or Moving Coil (MC) cartridge, this preamp offers the versatility and precision required to get the absolute best sound from your record collection.

Key Features:

True Balanced Connection: Equipped with a 5-pin mini XLR input and XLR outputs, allowing for a fully balanced signal path that drastically reduces noise and interference when used with compatible turntables.

Fully Discrete & Dual Mono: Features a symmetrical dual-mono layout with a discrete gain stage (no op-amps), delivering cleaner, more dynamic sound with superior channel separation.

Total Adjustability: Easily adjust Impedance (10, 50, 100, 1k, 47k Ohms), Capacitance (50, 150, 300, 400 pF), and Gain (40, 45, 60, 65 dB) via the front panel to perfectly match your specific cartridge.

Versatile Inputs & Outputs: Includes standard RCA inputs/outputs alongside balanced XLR options, ensuring compatibility with a wide range of hi-fi setups.

Premium Build Quality: The rigid steel and aluminum casing not only looks elegant but also shields the sensitive electronics from external electromagnetic interference.

Made in Europe: Expertly engineered and manufactured in Europe for long-lasting reliability and performance.

For Quebec residents – Disclosure under the Consumer Protection Act

In compliance with Bill 29, Best Buy and third-party sellers on Best Buy Marketplace do not guarantee the availability of replacement parts, repair services, or maintenance information for any products. Coverage provided through any Best Buy Protection programs and applicable manufacturer warranties, if any, remain in place. Information about the manufacturer’s availability guarantee can be found .

Shipping Charges

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Processing Time

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Product Category
Home theatre audio products
Return/Exchange Period
30 days
Condition
Opened