Pro-Ject Phono Box DC - Phono Preamplifier MM/MC- Silver

A Simple, Affordable Entry Into Outboard Phono Stages

The Pro-Ject Phono Box DC is an MM/MC phono preamplifier built to switch cleanly between the two most common cartridge types. It's Pro-Ject's entry-level phono stage, sold in the US under this "DC" name and known simply as the Phono Box elsewhere.

A rear switch flips between moving magnet and moving coil gain, so there's nothing complicated to configure. It's a good first step up from a receiver's built-in phono input.

Gain and Loading for Two Cartridge Types

Moving magnet gain is set at 40dB, with 47 kOhm input impedance and 120pF capacitance. Moving coil gain is set at 60dB, with 100 ohm input impedance.

RIAA accuracy is rated within ±0.5dB across 20Hz to 20kHz. It measures roughly 4 by 1.4 by 4 inches and weighs 19 ounces, running from an 18V DC external power supply.

Who Is This Preamp Best For?

• Anyone stepping up from a receiver's built-in phono input. Dedicated gain and RIAA correction outperform most basic setups.
• Owners of both MM and MC cartridges. A single rear switch moves between the two.
• Shoppers on a tight budget. It's Pro-Ject's most affordable phono preamp.
• Not the right fit for anyone who wants adjustable loading. Gain switches between two settings, but impedance and capacitance are fixed.

How Does It Connect to Your System?

Run your turntable's phono cable into the Phono Box DC's RCA input, then connect its RCA output to a line-level input on your amplifier or receiver. Flip the rear switch to match your cartridge type.

Pairs Well With

Building your system? Here are some great companions for the Pro-Ject Phono Box DC:

• Turntables without a built-in phono stage
• Phono cartridges, MM or MC, matched to its switchable gain
• Interconnect cables to connect its output to your amp

Frequently Asked Questions

Can I switch between MM and MC cartridges?

Yes. A single rear switch selects between moving magnet and moving coil gain.

Is this the same as the "Phono Box" sold outside the US?

Yes. The specs match; only the name differs by market.

What's the warranty?

Pro-Ject covers the Phono Box DC with a two-year warranty on parts and labor.

See It in Action

Nadir Audio tries the Phono Box DC as a first external phono preamp:

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Learn More

Want to learn more about matching a phono preamp to your cartridge, setting up your turntable correctly, or getting the most from your vinyl collection? Visit our Learning Center for guides, tips, and expert advice.