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Pro-Ject Phono Box MM

Phono preamplifier for moving magnet cartridges

52 Reviews | 3 questions - 6 answers

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Item # 252PBMMB

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Was: $99.99

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Our take on the Pro-Ject Phono Box MM

Do you have a turntable, but no phono input on your receiver or shelf system? No problem — just hook up the Pro-Ject Phono Box MM preamplifier inline between your record player and any of your receiver's aux inputs, and you're ready to enjoy your LP collection all over again. This preamp's clean, simple design takes advantage of high-quality, low-noise circuitry to give you the warm, richly detailed sound that vinyl is famous for, at a bargain price.

Get back in touch with your record collection

Do you have a turntable, but no phono input on your receiver or shelf system? No problem — just hook up the Pro-Ject Phono Box MM preamplifier inline between your record player and any of your receiver's aux inputs, and you're ready to enjoy your LP collection all over again. This preamp's clean, simple design takes advantage of high-quality, low-noise circuitry to give you the warm, richly detailed sound that vinyl is famous for, at a bargain price.

Need a cable?

This phono preamp does not come with an RCA cable to connect to your receiver or amp.

Product Highlights:

  • compatible with moving magnet phono cartridges
  • external power supply for reduced noise and interference
  • metal case shields electronics from vibration and electromagnetic interference
  • gold-plated input and output RCA jacks for solid, corrosion-free connections
  • dual-mono circuitry for optimal channel separation
  • small size allows placement near turntable
  • input impedance: 47 kohms/120pF
  • gain: 40dB
  • signal-to-noise ratio: 88dB
  • THD: 0.04%
  • RIAA response accuracy: 0.5dB (20-20,000 Hz)
  • 4-1/4"W x 1-3/16"H x 3-11/16"D
  • warranty: 2 years
  • Our 60-day money-back guarantee

What's in the Box:

  • Phono (MM) pre-amplifier
  • DC power supply (with attached 5' DC output cord)
  • US power plug adapter
  • UK power plug adapter
  • EU power plug adapter
  • Instructions (English/ German)

Well designed. Easy to install. Small but powerful. No feedback or hum. Just a great pre amp !

Christ, Terre Haute, IN


Pro-Ject Phono Box MM Reviews

Average Customer Review(s):

(52 Reviews)
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Hands-on research

Product Research


Phono (MM) Preamp: The Pro-Ject Phono Box MM allows you to connect a turntable with a MM (moving magnet) cartridge to a home receiver or amplifier without a dedicated phono input.

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

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

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

RCA Connections: The Phono Box MM 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 preamp 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 MM is powered by the included DC power supply. The external power adapter is separate from the phono preamp to further improve sound quality.

  • Input: 100-240V AC~50/60Hz, 0.4A max
  • Output: +/-18V DC - 0.5A

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.

Q & A

Customer Q&A

Crutchfield asked  
Why did you buy this?

Needed to connect old turntable to newer A/V receiver with no "phono" input. Googled how to do it and the first article I saw was from Crutchfiled with step by step tips. [ X  Sep 30, 2018 ]
chat with crutchfield [ steve  Sep 19, 2018 ]
Cost effective and seemingly reliable phono for my first turntable purchase. [ Eric  Sep 18, 2018 ]
Per adviser Tine saying it will work with my MMC EN20 B&O 3400 Turntable. [ Patrick O.  May 08, 2018 ]
Needed for new Sony A/V receiver. Phono preamp is no longer on the back of the unit. [ Mark  Mar 21, 2018 ]
I do have a receiver with phono input. However I found that when I play a record, I lose volume / out put power when compared to audio out put of the other components like the cd player or satellite radio, tuner and dvd. It was suggested that I get an independent phono pre- amp and plug it into to the reciever as one would do as if the receiver did not have a phono input. So I am waiting fot this project pre amp to see if I get a fuller sound as I do with my other components. Hope it works! [ CHRISTOPHER  Mar 10, 2018 ]
Price and need for a preamp [ Ken  Mar 05, 2018 ]
Upgraded to modern receiver and receiver did not have phono jack. [ Gerald  Jan 25, 2018 ]
Recommended by Crutchfield advisor [ RICHARD  Dec 27, 2017 ]
The preamp I bought from Amazon was just too cheap and hideous [ Ivan  Dec 20, 2017 ]
Great Christmas gift for my son. Thanks for the great prices & service! [ LISA  Dec 07, 2017 ]
I am going to add a record player [ Carlos M  Nov 30, 2017 ]
Hopefully a cheap and easy fix that will allow me to utilize an older turntable with an updated system. We will see! [ John  Nov 21, 2017 ]
A price-minded phono preamp purchase. [ John A.  Nov 03, 2017 ]
Because I am old school and still use a turntable. [ keith  Oct 31, 2017 ]
to be able to use my turntable with my receiver [ William  Oct 11, 2017 ]
Just bought a new receiver without phono input. Was looking for a reasonably priced phono pre-amp. I found that this pre-amp has received high ratings from many websites. It is considered to be one of the best under $100 phono pre-amps. [ Vincent  Jul 18, 2017 ]
Price was right and it's what I need. [ Joseph Fenwick  Jun 20, 2017 ]
Price, quality and simplicity. [ Omar  May 21, 2017 ]
No matter what I have purchased from Crutchfield they help make it work. [ John  May 15, 2017 ]
It was recommended to hook up a record player to the receiver I chose. [ Phillip  Apr 05, 2017 ]
Need to be able to play my vinyl! Have never used one of these but seemed to make good sense. [ William  Mar 20, 2017 ]
Spoke with Buzz to confirm this is the preamp I needed for my turntable. [ Richard  Nov 09, 2016 ]
Small compact and fit my needs. [ Richard  Nov 04, 2016 ]
Upgrade to system; use turntable [ FRANK  Oct 15, 2016 ]
pro-ject makes great products [ charles  Sep 13, 2016 ]
Good Price [ Terry  Aug 16, 2016 ]
I chose this product because so that I could listen to my vinyl collection from 60s and 70s. through my receiver/speakers. [ Pradeep S.  Jun 29, 2016 ]
Value and reviews. [ Michael  Jun 24, 2016 ]
I've bought one before. Great for the price. [ Alan  Jun 02, 2016 ]
Least expensive phono pre-amp and seems to be most popular choice for phono pre-amp for receiver (Marantz NR1506) that does not have phono input/pre-amp built in. [ Andy  May 13, 2016 ]
Reasonably priced solution to my phono preamp needs. [ E  May 13, 2016 ]
Excellent rating [ Philip  May 12, 2016 ]
High reviews and best seller. Also in my price range. [ CHARLES  May 01, 2016 ]
Advice from my expert technical advisor, Ann. Ann's Bio: [ Elizabeth  Apr 14, 2016 ]
I needed it. [ Walter  Apr 11, 2016 ]

3 questions already asked

Yes. This box solved the exact same issue for me. [ DAVID  Feb 01, 2018 ]
Yes, your Ortofon cartridge is a MM (Moving Magnet) cartridge. You need an MM phono pre-amp like this one (which is great, by the way). Plug your phono pre-amp into any of the line outputs (marked CD, Aux, etc.). You'll be off and running. [ Michael  Jan 31, 2018 ]
Yes. I have the same turntable and a Yamaha amp and use thr same project pre amp. [ Paul  Jan 31, 2018 ]
What input options does your receiver have? I previously used a Pioneer Receiver that has TV/SAT inputs, and I plugged my turntable into that. I would think you would be able to plug this into whatever input you had been using for a turntable. (Unless it's a USB only turntable?) [ Alicia  Jan 31, 2018 ]
It looks like the R1000-EDT is a moving magnet cartridge, so this should work for you. I would recommend reaching out to an Advisor by phone or online chat first to double check though. [ Jeff  Jan 09, 2014 ]  Staff
Thanks for your question. For information on determining the type of cartridge your turntable has I would recommend trying an internet search for the model number. Yo could also reach out to an Advisor by phone or online chat. They will be able to help determine the type of cartridge and help you get the best gear for your system. [ Jeff  Dec 28, 2013 ]  Staff

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Pro-Ject PhonoBox DC (BK)

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$99.99 After $29.01 Price break

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Add moving coil cartridge capability

The Pro-Ject Phono Box DC offers these features:

compatibility with moving magnet and moving coil phono cartridges

more gain and less noise for better sound