Pro-Ject Phono Box DC

Phono preamplifier (Black)

Item #: 252PBDCB

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Expected: 5/14/2015 Reserve yours risk-free

14 Reviews

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Add high-quality vinyl sound to your hi-fi rig

Do you have a turntable, but no phono input on your receiver, integrated amp, or shelf system? Or, does your system's built-in phono stage sound flat and lifeless? No problem — just hook up the Pro-Ject Phono Box DC preamplifer in-line between your record player and any of your receiver's line-level inputs, and you're ready to enjoy your LP collection all over again. Pro-Ject's clean, simple design uses premium quality parts to deliver the warm, relaxed sound that vinyl is famous for. Its compact all-metal body rejects interference to ensure clean sound, and the gold-plated inputs and outputs resist corrosion for the best possible signal transfer.

This preamp is compatible with both moving magnet and moving coil cartridges, so you can count on proper matching with virtually any turntable and cartridge combination.

Product Highlights:

  • compatible with moving magnet and moving coil phono cartridges
  • external power supply for reduced noise and interference
  • gold-plated input and output jacks for solid, corrosion-free connections
  • dual-mono circuitry for optimal channel separation
  • small size allows placement near turntable
  • input impedance: 47 kohms/120pF (MM); 100ohms/120pF (MC)
  • gain: 40dB (MM); 60dB (MC)
  • signal-to-noise ratio: 86dB (MM); 68dB (MC)
  • THD: 0.01% (MM); 0.05% (MC)
  • RIAA response accuracy: 0.5dB (20-20,000 Hz)
  • 4-1/8"W x 1-1/2"H x 5-3/8"D
  • warranty: 2 years
  • Our 60-day money-back guarantee

Hands-on research

What's in the box?

Download owner's manual

  • Phono (MM/MC) pre-amplifier
  • AC power adapter (with attached 58" DC output cord)
  • North American Type A 2-prong plug adapter
  • European Type C 2-pin plug adapter
  • British Type G 3-pin plug adapter
  • Instructions

Product Research


Phono (MM/MC) Preamp: The Pro-Ject Phono Box allows you to connect a turntable with either a MM (moving magnet) or MC (moving coil) cartridge to today's home receiver's and amplifier which do not offer a dedicated phono input. There is a button on the back of the unit which allows you to switch between MM or MC mode.

Metal Case: The Phono Box's metal case shields the electronics from vibration and electromagnetic interference.

Dual-Mono Circuitry: The Phono Box provides optimal channel separation through dual-mono circuitry and low-noise ICs.

RIAA Equalization: The Pro-Ject Phono Box provides amplification and RIAA equalization for both MM and MC cartridges.

RCA Connections: The Phono Box features gold-plated stereo RCA connections. A stereo RCA input connects your turntable, and a stereo RCA output connects your home receiver or amplifier. RCA cables sold separately.

Ground Terminal: The Phono Box also has a turntable ground, in case your turntable has a separate ground lead. This provides shielding to the tone-arm and the sensitive circuitry in the turntable.

Outboard Power Supply: The Pro-Ject Phono Box operates off of standard household AC current, using the supplied AC power adapter. The external power adapter is separate from the phono preamp to further improve sound quality.

  • Input: 100-240V~50/60Hz, 0.6A
  • Output: 15V - 500mA (18V)

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team. They verify what’s in the box, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.

Pro-Ject Phono Box DC Reviews

Average Customer Review:

14 reviews
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Pro-Ject Phono Box DC

Written By Howard, Kansas on Sunday, February 15, 2015

Crutchfield Customer Review (What's this?)

This product provides the necessary requirements for any turntable . When matched with a recently purchased Pro-Ject Debut Carbon (DC) turntable they make a great pair . Very easy hook up and great sound and clarity.

Pros: Excellent product and a very reliable brand.

Cons: None

Phono pre amp

Written By Don, Minocqua, WI on Wednesday, January 14, 2015

Crutchfield Customer Review (What's this?)

Nice quality

Pros: Ease of use

Cons: None

Pro-ject Phono Box DC

Written By Mike S., Bucks County, PA on Tuesday, January 06, 2015

Crutchfield Customer Review (What's this?)

I purchased an Onkyo mini system and asked Crutchfield's advisor Jasan about hooking up my turntable to it. Jasan suggested the Pro-Ject Box and a cable for connection.; Easy hook up and works flawlessly now I can listen to my "records".

Pros: Good product.

Cons: None

Phono Box

Written By HR, Framingham, MA on Monday, November 10, 2014

Crutchfield Customer Review (What's this?)

Box works exactly as expected. Delivery was right on time and the price was great. The sound of the albums now is excellent.

Pros: small, affordable.

Pro-Ject Phono Box

Written By HughR, Boston, MA on Saturday, October 18, 2014

Crutchfield Customer Review (What's this?)

Just what i needed. Had my old turntables and old records and I did not have the time to convert records to CDs. Now I can play my records and enjoy them. Saved me lots of time and money! such a simple device!

Pro-ject Phono box DC

Written By dan H, hesperus, co on Monday, September 15, 2014

Crutchfield Customer Review (What's this?)

Very simple to use, excellent quality

Pros: simple to use

Cons: None found


Written By RichyFL, Florida on Sunday, July 20, 2014

Crutchfield Customer Review (What's this?)

This is a nice little gadget. It replace a old RCA pre-amp I had. Easy to use and easy to set up. Now I can enjoy my vinyl!

Pros: Easy to set up and use.

Cons: None noticed.

Works well

Written By HumboldtRick, Eureka, CA on Wednesday, April 02, 2014

Crutchfield Customer Review (What's this?)

Needed to integrate my old Denon turntable with my new HT system. Works well and looks good. The MM/MC switch is on the back which could be inconvenient in some situations, but isn't too much of an issue with me.

Pros: Works well Looks good

Cons: MM/MC switch are on the back of the unit

Unused to preamps

Written By Scott5350, Indianapolis on Sunday, November 24, 2013

Crutchfield Customer Review (What's this?)

This is my first preamp. Seems to work great

Pros: East set up.

Cons: Unclear which mode to be in from documentation.

Great Value and quality

Written By John P, La Quinta CA on Tuesday, April 16, 2013

Crutchfield Customer Review (What's this?)

Great Value Great Price Great Sound for my 40 plus year old Gerrard Lab 80 turntable. Exactly what I needed for my new sound system.

Pros: size, value, application all 5 star

Cons: none so far

Great phono pre

Written By Dw, NYC on Saturday, February 16, 2013

Crutchfield Customer Review (What's this?)

matched with the Debut turntable it sounds great.....super flat and sounds great. No complaints

Pros: simple set up

Cons: none

Phono Preamp

Written By John S, Blue Bell, PA on Monday, December 24, 2012

Crutchfield Customer Review (What's this?)

wanted to connect ~20 year old high quality turntable to new receiver without a phono input. Had a moving coil cartridge pick-up. Very easy to set up. Works great. No problems and you won't need the instructions. Volume output of pre-amp/receiver in phono mode matches comparable CD input.

Pros: offers moving coil and moving magnet pickup option. Easy to set up

Cons: none

Missed my vinyl

Written By PBDave, Pittsburgh, PA on Sunday, November 04, 2012

Crutchfield Customer Review (What's this?)

Because of a move, major remodel and then purchase of my new Denon receiver with no phono input I hadn't listened to my albums for over 3 years. Kyle suggested the Pro-Ject Phono Box DC for the necessary preamplifier. It took minutes to connect and figure out how to operate my turntable with my Harmony One which is a miracle since I am techno-inept. I listened to album after album and was blown away by the sound through my ancient Klipsch Heresy speakers. All of the things vinyl nuts say about the fullness and warmth of sound were so evident I was truly a bit surprised. I never duplicated my albums with my CD collection s so I am having a literal blast (apologies to my townhouse neighbors) getting reacquainted.

Pros: Mindless installation even for techno-inept Clear, full, distortion-free sound from my vinyl

Cons: None I can think of

Pro-Ject Phono Box DC

Written By Steve T, Leonardtown MD on Thursday, July 05, 2012

Crutchfield Customer Review (What's this?)

Easy to install and worked exactly as advertised. Highly recommend.

Get everything you’ll need to enjoy your new Pro-Ject Phono Box DC

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Pro-Ject PhonoBox S (BK)

Optimize the sound of your turntable

The Pro-Ject Phono Box S offers these features:

switchable input impedance and capacitance settings for proper cartridge loading

four adjustable gain levels to match phono cartridge output levels

switchable subsonic filter to eliminate turntable rumble