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Pro-Ject Phono Box MM

Phono preamplifier for moving magnet cartridges

Item # 252PBMMB

This preamp's high-quality, low-noise circuitry gives you the warm sound that vinyl is famous for at a bargain price.

This preamp's high-quality, low-noise circuitry gives you the warm sound that vinyl is famous for at a bargain price.

Top seller

Item # 252PBMMB

In stock

$99.99 -$20.00 Price break

$79.99

Other options

About the Pro-Ject Phono Box MM

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.

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.

READ LESS

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
  • MFR # PhonoBox MM-BK

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)

Customer reviews

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Pro-Ject Phono Box MM reviews

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79 reviews

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Crutchfield response

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More details on the Pro-Ject Phono Box MM

Stacey B.

Features & specs

Features
Cartridge Type MM
Subsonic Filter No
Adjustable Resistance Load No
Adjustable Capacitance Load No
Vacuum Tube No
Connections
RCA Inputs 1 Pair
XLR Inputs No
RCA Outputs 1 Pair
XLR Outputs No
USB Output No
Specs
Signal-to-noise Ratio (MM) 88
Signal-to-noise Ratio (MC) Not given

Product Research

Features

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

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Customer Q&A

Q
Crutchfield asked: Why did you buy this?
A
Cannot get audio from the turntable connected to my receiver without turning little speakers all the way up. [ James  Apr 21, 2020 ]
A
Great reviews. Plan to use it with my Pro-ject brand turntable. [ Stephen  Apr 10, 2020 ]
A
I need this to connect my turntable to Yamaha receiver that doesn't have a phono input. [ Richard  Mar 30, 2020 ]
A
I need it for my 45 yr old Yamaha turntable.It is a direct drive MC and I have over 700 LPs that my wife and I would love to listen to again but with my new receiver which has no phono port to plug it in to I have no recourse. [ william m.  Mar 26, 2020 ]
A
Chose this item after it was recommended by Eddie via E-Mail. [ Vaughn  Mar 24, 2020 ]
A
The reviews were helpful and the price point was good [ Michael  Jan 12, 2020 ]
A
Newer turntable not working, decided to get out old turntable from 1975, but receivers don't have pre-amps anymore. [ Ronald  Dec 09, 2019 ]
A
The Price was great, and it came highly recommended. [ Timothy  Dec 06, 2019 ]
A
I have a unit that doesn't have a turntable pre-amp. Recommended by Nemo [ DANIEL P  Feb 27, 2019 ]
A
Old turntable needs to be part of New system [ J  Jan 01, 2019 ]
A
Sounds like a good buy for the price based on reviews. [ Robert  Dec 29, 2018 ]
A
Purchased new Sony DN1080 receiver and needed to hook up my turntable. [ John  Dec 11, 2018 ]
A
My Denon receiver doesn't have a phono input and my Audio-Technica turntable doesn't have a pre-amp. Jolene advised this MM type box will be compatible with the hardshell cartridge that came with the turntable. Best Customer Service anywhere imho. [ Simon  Nov 21, 2018 ]
A
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 ]
A
chat with crutchfield [ steve  Sep 19, 2018 ]
A
Cost effective and seemingly reliable phono for my first turntable purchase. [ Eric  Sep 18, 2018 ]
A
Per adviser Tine saying it will work with my MMC EN20 B&O 3400 Turntable. [ Patrick O.  May 08, 2018 ]
A
Needed for new Sony A/V receiver. Phono preamp is no longer on the back of the unit. [ Mark  Mar 21, 2018 ]
A
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 ]
A
Price and need for a preamp [ Ken  Mar 05, 2018 ]
A
Upgraded to modern receiver and receiver did not have phono jack. [ Gerald  Jan 25, 2018 ]
A
Recommended by Crutchfield advisor [ RICHARD  Dec 27, 2017 ]
A
The preamp I bought from Amazon was just too cheap and hideous [ Ivan  Dec 20, 2017 ]
A
Great Christmas gift for my son. Thanks for the great prices & service! [ LISA  Dec 07, 2017 ]
A
I am going to add a record player [ Carlos M  Nov 30, 2017 ]
A
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
A price-minded phono preamp purchase. [ John A.  Nov 03, 2017 ]
A
Because I am old school and still use a turntable. [ keith  Oct 31, 2017 ]
A
to be able to use my turntable with my receiver [ William  Oct 11, 2017 ]
A
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. [ Vince  Jul 18, 2017 ]
A
Price was right and it's what I need. [ Joseph  Jun 20, 2017 ]
A
Price, quality and simplicity. [ Omar  May 21, 2017 ]
A
No matter what I have purchased from Crutchfield they help make it work. [ John  May 15, 2017 ]
A
It was recommended to hook up a record player to the receiver I chose. [ Phillip  Apr 05, 2017 ]
A
Need to be able to play my vinyl! Have never used one of these but seemed to make good sense. [ William  Mar 20, 2017 ]
A
Spoke with Buzz to confirm this is the preamp I needed for my turntable. [ Richard  Nov 09, 2016 ]
A
Small compact and fit my needs. [ Richard  Nov 04, 2016 ]
A
Upgrade to system; use turntable [ FRANK  Oct 15, 2016 ]
A
pro-ject makes great products [ charles  Sep 13, 2016 ]
A
Good Price [ Terry  Aug 16, 2016 ]
A
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 ]
A
Value and reviews. [ Michael  Jun 24, 2016 ]
A
I've bought one before. Great for the price. [ Alan  Jun 02, 2016 ]
A
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 ]
A
Reasonably priced solution to my phono preamp needs. [ E  May 13, 2016 ]
A
Excellent rating [ Philip  May 12, 2016 ]
A
High reviews and best seller. Also in my price range. [ CHARLES  May 01, 2016 ]
A
Advice from my expert technical advisor, Ann. Ann's Bio: http://www.crutchfield.com/Support/Bio.aspx?bio=55 [ Elizabeth  Apr 14, 2016 ]
A
I needed it. [ Walter  Apr 11, 2016 ]
SHOW MORESHOW LESS

7 questions already asked

Q
I have a Rega RP1 turntable and want to connect with an old Pioneer VSX-D514 receiver. Will this amp work?
[ Mark  Apr 09, 2020 ]
2 answers
A
Absolutely. This should be compatible with any standard receiver RCA inputs to a receiver, as well as taking phono RCA outputs from the turntable. That's what this is for.
[ ANDRES  Apr 20, 2020 ]
A
I used this to connect my Pro-ject debut carbon turntable to a Marantz receiver and works fine. I can't think of a reason why it wouldn't work for you, assuming you need a pre-amp. If its a really old Pioneer receiver, then it may already have a built in preamp.
[ Michael  Apr 20, 2020 ]
Q
Can this be connected to TV/VIDEO Audio In R and L RCA jacks?
[ Carlos  Mar 06, 2020 ]
1 answer
A
Yes. As long as you are plugging it in to some sort of AUX input it will work.
[ Derek  Mar 06, 2020 ]
Q
I have a Klipsch R15-PM pro-ject system.. I believe the internal pre-amp is shot as it emits a high pitched sound when the switch is on. No one will repair/replace it so I was looking to see if this was a viable option? The speakers themselves work perfectly outside of the Phono options.
[ Evan  Dec 28, 2019 ]
3 answers
A
You can use a phono pre-amp like this one instead of using the one in the Klipsch powered speakers. This can fix it as long as that switchable input on the Klipsch doesn't have the high pitched sound with pre-amp level audio.
[ Paul  Jan 28, 2020 ]  Staff
A
This or any external pre amp needs a line other than a phono stage to be plugged into. If this system has that option, then I see no reason not to order one to see if it works as an alternatve to already existing internal pre amp. If there is a line to plug the external pre amp into rca wise, and there is a way to shut the internal amp off and go "line" then I would give this a try. Chances are this external pre amp is better whether your internal preamp is gone or not. I got mine as an alternative to the phono input that came with my receiver. I installed the pro ject pre amp into a line and my turntable sounds much better. I say its worth a try provided the stipulations I made above. Line access option, turn of phono pre amp option.You can not plug this ore amp into a phono jack! Only a line other than for a phono. If you have to return the pre amp, then I am sure Crutchfield will understand ir be wiling to help. Chris
[ CHRISTOPHER  Jan 28, 2020 ]
A
Evan - Yes, I am fairly sure this will work for you as long as you have a spare input. My Sony receiver does not have a phono input. So, I used the Video 1 cable input. My turntable works fine. Hope this helped
[ Top-82  Jan 28, 2020 ]
Q
I have a new Pro-ject Phono Box for a pre amp for an old AR turntable with new ortofon 2M Red Verso cartridge. I have a Sony STR-DE 595 receiver but the sound is too quiet. What should I do?
[ Stuart  Oct 20, 2019 ]
4 answers
A
All of the above answers are good advice. Also remember that you have lifetime tech support on any product purchased with us. If you are having issues, give us a call! https://www.crutchfield.com/support/ContactUs.aspx
[ Calvin  Oct 30, 2019 ]  Staff
A
Make sure you have quality cables/wires goint to and from the Phono Box (Turntable to Box, and Box to receiver). If that's checked off, you may just need to run your reciever at much higher volume. This is where a quality receiver can "handle" the job. A lesser receiver might not have the power.
[ ANDRES  Oct 30, 2019 ]
A
If the Sony has a Phono input than plug the patch cord in there. If it doesn't than use the AUX on the receiver by plugging turntable to Phono Box and then connect to Receiver. This should work.
[ Stephen  Oct 30, 2019 ]
A
It seems very strange that Crutchfield doesn't answer your question directly. The Ortofon cartridge is a moving magnet design with a normal phono output level, about 5mV for 5cm/sec at 1kHz, same as a Shure V15, for example. So assuming that the turntable is connected properly to the Pro-ject and the Project output is going into an appropriate Sony input, it should work. Why not try plugging the output cables from the Pro-ject into other Sony input, say, the CD or Aux. If the Sony has any gain switches hidden on the back, you could try those as well. The Pro-ject that I bought has worked fine.
[ MARK  Oct 29, 2019 ]
Q
I have a new Pro-Ject DEBUT Carbon DC turntable that was bought from Crutchfield. It has a a Ortofon 2M Red cartridge. I believe it is a MM cartridge, but not positive. Since my Sony Receiver doesn't have Phono inputs. Will this work? Thanks in advance.
[ Top-82  Jan 31, 2018 ]
4 answers
A
Yes. This box solved the exact same issue for me.
[ DAVID  Feb 01, 2018 ]
A
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 ]
A
Yes. I have the same turntable and a Yamaha amp and use thr same project pre amp.
[ Paul  Jan 31, 2018 ]
A
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 ]
Q
I have a tune table with a R1000-EDT magnetic cartage. Will the Pro-Ject Phono Box MM work with my turn table?
[ Paul  Jan 09, 2014 ]
1 answer
A
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
Q
How would I know if my turntable has a moving magnet cartridge and would be compatible? My turntable is a very old direct drive Marantz .
[ Donna  Dec 27, 2013 ]
1 answer
A
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 Phono Box DC
Phono preamplifier for moving magnet and moving coil cartridges
Black
In stock
83 reviews

$129.00 -$29.01 Price break

$99.99
Add to cart

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
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