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Pro-Ject Phono Box MM Phono Preamplifier (Black)

4.5 4.5 out of 5 stars 1,032 ratings

  • Compatible with moving Magnet phono cartridges
  • Dual-mono circuitry for optimized Channel separation
  • Low-noise integrated circuits
  • Gold-plated RCA inputs and outputs
  • Metal case protects unit from vibrations and electromagnetic interference

Product information

Warranty & Support

Product Warranty: For warranty information about this product, please click here. [PDF ]

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Pro-Ject Phono Box MM Phono Preamplifier (Black)

Pro-Ject Phono Box MM Phono Preamplifier (Black)


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Product details

  • Is Discontinued By Manufacturer ‏ : ‎ No
  • Product Dimensions ‏ : ‎ 4.21 x 2.95 x 1.18 inches; 9.92 ounces
  • Item model number ‏ : ‎ Phono Box MM DC Black
  • Date First Available ‏ : ‎ May 2, 2012
  • Manufacturer ‏ : ‎ Vertical Cubed dba SUMIKO
  • ASIN ‏ : ‎ B000YEK1AQ
  • Customer Reviews:
    4.5 4.5 out of 5 stars 1,032 ratings

Product guides and documents

What's in the box

  • Power Supply
  • User Manual
  • Product Description

    Since many modern amplifiers no longer have a dedicated phono input, the phono box mm from Pro-Ject is the perfect addition to your turntable setup. Compatible with nearly any moving magnet cartridge, the phono box mm gives you a superb audiophile music experience at an entry-level price. The utilization of advanced circuitry keeps noise and distortion extremely low, and the metallic case and outboard DC power supply keeps the unit free from electromagnetic interference. Since it's only slightly larger than a pack of playing cards, the phono box mm can be placed nearly anywhere. The RCA input and output sockets are gold-plated to preserve sound quality and can be connected directly to any line-level input (aux, CD, Etc.) on your amplifier.


    From the manufacturer

    Good sound from sound technology

    Today, many amplifiers do not have a specific phono cartridge input. Phono Box MM is an ideal phono preamplifier for these hifi systems. Phono Box MM accepts MM and high-output MC cartridges and offers an audiophile music experience at an entry-level budget. Advanced circuitry keeps noise and distortion at a surprisingly low level. The metal case shielding and an outboard DC power supply leave no risk for external interference. Because of its small casing, Phono Box MM can be placed near the turntable. Input and output sockets are gold-plated for preservation of quality. Phono Box MM can be connected easily to a line-input (AUX etc) of your amplifier.

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    Features

    • Amplification and RIAA equalisation for MM and High-Output MC cartridges
    • Metal case shields the electronics from vibrational and electromagnetic interference
    • Special low-noise ICs used
    • Optimal channel separation through dual-mono circuitry
    • Gold plated RCA connection sockets
    • DC power supply (< 1 watt standby power)
    • Small size allows installation close to record player

    audiost

    Audiostance reviews the Phono Box MM

    US, 05.2019 "If your budget is maxed at 100 then the Pro-Ject Phono Box MM is the best phono preamp under 100. Pro-Ject Audio is a high-end turntable and phono accessories manufacturer out of Austria in Europe."

    Technical Specifications

    Input impedance 47 kOhm / 120 pF
    Gain 40 dB
    Output voltage 500 mV / 1 kHz at 5 mV /1 kHz
    Noise floor 88 dB (A weighted)
    THD <0,04%
    Input 1 pair RCA/phono sockets
    Line-level output 1 pair RCA/phono sockets
    Outboard power supply 18 V / 500 mA DC, suitable for your country's mains supply
    Power consumption 20 mA DC
    Dimensions W x H x D 107 x 30 x 75 mm
    Weight 280g without power supply

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    Details
    Added to Cart
    Details
    Added to Cart
    Details
    Added to Cart
    Details
    Added to Cart
    Price$179.00$189.00$99.99$445.00
    Delivery
    Get it May 16 - 21
    Get it as soon as Friday, May 17
    Customer Ratings
    Quality of material
    4.4
    4.8
    5.0
    4.4
    4.0
    Sound quality
    4.2
    4.6
    4.6
    4.3
    4.5
    Volume control
    3.7
    3.8
    3.6
    3.6
    3.6
    Value for money
    4.0
    4.2
    4.5
    4.6
    Sold By
    Schiit Audio
    Schiit Audio
    Fluance Audio
    GRAMOPHONE

    Looking for specific info?

    Customer reviews

    4.5 out of 5 stars
    4.5 out of 5
    1,032 global ratings

    Customers say

    Customers like the sound quality, performance, quality, appearance and ease of setup of the preamp. They mention that it works well, it provides the bridge between turntable and speaker and that it's the best option at this price point. They appreciate the compact design and that the RIAA equalization curve sounds appropriately applied.

    AI-generated from the text of customer reviews

    69 customers mention51 positive18 negative

    Customers like the sound quality of the amplifier. They say it has wonderful sound, low noise, and low distortion. Some say it immediately corrected audio issues and increased the sound 5 fold. They also appreciate the RIAA equalization curve and say it sounds appropriately applied. Overall, customers are satisfied with the sound performance of the product.

    "...The cartridge output went straight to the preamp. The sound was acceptable and decent, until it got really crackly sometimes...." Read more

    "...An unexpected bonus was that record surface noise, already quite low, went completely black (wow).Thrilled over here. 5 stars." Read more

    "...crazy easy to set up (plug and play pretty much) and it immediately corrected audio issues as well as gave me the power of sound that having a..." Read more

    "...Rega or Music Fidelity are also very good quiet phono preamps and can be purchased on the used market in the under $75-200 range." Read more

    57 customers mention49 positive8 negative

    Customers like the performance of the preamp. For example, they say it's easy to use, effective, and provides a bridge between their turntable and speaker. Some say it works well enough for their needs and is happy with the quality and results. Overall, most are happy with their purchase and recommend it to others.

    "...Overall I am very happy with the quality and results." Read more

    "Working very well" Read more

    "...purchase i've made in years because of how easy it is to use and effective it is." Read more

    "...LP3 for $175 but it is dead quiet and a better preamp with very good specs and components...." Read more

    49 customers mention43 positive6 negative

    Customers like the quality of the preamp. They say it's well built, does the job for entry level, and is an awesome preamp for your receiver. Some mention that the music reflected sounds rich and full of both bass and.

    "...It's very solid, metal and has weight to it, so it's not delicate. It could sustain a drop...." Read more

    "...clarity has improved, channel separate is noticeable and build quality is surprisingly good...." Read more

    "...RIAA equalization curve sounds appropriately applied as the music reflected sounds rich and full of both bass and treble and seems to be essentially..." Read more

    "...Great budget option for budget turntables, would match well with something in the $100-150 range...." Read more

    21 customers mention21 positive0 negative

    Customers are satisfied with the appearance of the amplifier. They mention it has a great compact design, and is very small. Some appreciate the well-grounded unit, and the fact that it fits nicely behind the receiver. Overall, most are happy with the quality and value of the product.

    "...For the price, I really don't think you'll find a better preamp. It's very solid, metal and has weight to it, so it's not delicate...." Read more

    "...It feels like an ice cold, heavy, solid piece of metal.Technics 1210 MK5Onkyo TX-NR828Emotiva XPA-5 Gen2..." Read more

    "...This sturdy metal box, no larger than it needs to be, no annoying lights, no switches, dials, or options, melted into my system and lifted the sound..." Read more

    "...so some things just come down to personal preference..Its also well grounded with a low noise floor...." Read more

    16 customers mention16 positive0 negative

    Customers find the receiver or amplifier easy to set up. They mention it's simple, easy to connect, and not finicky like tube preamps.

    "...It was crazy easy to set up (plug and play pretty much) and it immediately corrected audio issues as well as gave me the power of sound that having..." Read more

    "...Cheap, no static, and its not finicky like the tube preamps or anything in the higher range. Very very good for beginners like myself" Read more

    "Simple to use and the sound is good. Low noise, low distortion. No grounding issues...." Read more

    "Simple to use, simple to set up - provides multiple types of socket connectors...." Read more

    4 customers mention4 positive0 negative

    Customers appreciate the clarity of the signal. They mention that the signal is insanely clear, and that it comes out clear.

    "...The clarity is insane, the presence, depth and warmth are all there...." Read more

    "...Still have some hum with solid ground, but very low and not discernable when music is on at any volume." Read more

    "Fast response and shipping. Great clarity of signal especially at low volume ! Great value for the price. Highly recommend +++++" Read more

    "...Come out clear, easy to install. No problems." Read more

    Nice for the price
    4 Stars
    Nice for the price
    I know there are better phono stages out there, but for the price this is a nice unit. I also needed something small that would fit behind my turntable. I wish I could get a larger unit but I just do not have the room. I got this to replace the phono stage in my Integra Receiver. The Integra phono stage is too analytical and etched. This phono stage is much more musical and relaxed. This is what should have come inside the Integra... I wish the Pro-Ject had a higher extended top end and deeper sound stage but for the price its not bad. I really like the sound of saxophone and electric guitar on this unit, voices could be a little more forward but I have also heard laid back voices on 1K tube phono stages before, so some things just come down to personal preference..Its also well grounded with a low noise floor. The problem with a lot of inexpensive phono pre amps is they pick up EMI easily an so they develop hum or background static easily, So they have to be isolated somehow or you have to put up with low level hum or static ... This unit is very very quiet ..Overall its not bad and easy to listen to. Other equipment used were a Project The Classic Turntable with Ortofon 2M Bronze phono cartridge. I also changed out the mat from a leather mat to pure cork which helped the Pro-Ject phono stage sound better...The Integra sounded best with leather but the Pro-Ject sounded best with cork...Its a good idea to have many different mats available because changing a Cartridge, phono stage, cables etc will all have a different effect and mats are one way to tweak the sound more to your liking.
    Thank you for your feedback
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    Top reviews from the United States

    Reviewed in the United States on March 2, 2017
    I couldn't review this for a while because at the time of purchase, it didn't work with my setup. Apparently my cheap-o weak turntable already had a preamp built in.

    I just upgraded to the Pro-Ject Debut Carbon, which requires an external preamp, and now it's put to good use. I love it.

    Obviously it's a bit difficult to isolate what the preamp specifically brings to the table, because to use it, I introduced a higher end TT. But I will say this: with my old TT I kept the stylus clean, and cleaned my records, so even though it was chincy, I had little to no surface noise. BUT the sound felt weak, not present. Almost flat and far away. Cranking up the volume helped.

    With my current setup: pioneer receiver, Bose pseudo-vintage pedistal speakers, the Pro-Ject Debut Carbon TT, and this Phono MM Preamp, I have no complaints. The clarity is insane, the presence, depth and warmth are all there. In buying just these two pieces (turntable and preamp), it's like I replaced my whole stereo setup.

    For the price, I really don't think you'll find a better preamp. It's very solid, metal and has weight to it, so it's not delicate. It could sustain a drop. The sound quality is great: I get no signal noise whatsoever.

    I love this brand, and would recommend them to anyone. And in all honesty, I almost cheaped out and bought a preamp for half the price (albeit with another brand I do like), but I'm glad I didn't. I'll be happy with my current setup for a while.
    One person found this helpful
    Report
    Reviewed in the United States on November 12, 2016
    The phono input in my receiver sounded a little weak. The left channel also sounded a little weaker than the right channel & it was very very annoying. Granted, its not the best receiver on the planet. First I verified cable connections then cartridge alignment, antiskate settings etc. There are several more tedious troubleshooting steps to take, but thought I would add a phono pre-amp eliminating the phono input on my reciever. In my setup, this phono pre-amp solved my volume level issues and channel separation improved.

    Overall, right and left channel sound balanced, audio clarity has improved, channel separate is noticeable and build quality is surprisingly good. It feels like an ice cold, heavy, solid piece of metal.

    Technics 1210 MK5
    Onkyo TX-NR828
    Emotiva XPA-5 Gen2
    Klipsch RF-62 II with matching center/rear surrounds

    Overall I am very happy with the quality and results.
    29 people found this helpful
    Report
    Reviewed in the United States on March 31, 2019
    I've been slowly upgrading my vinyl setup over two years. I started with a mediocre at best Pyle Pro turntable and preamp. I got rid of it when I realized I couldn't turn the volume up anywhere near a satisfying level without starting a feedback loop. I upgraded to an ATLP120 which is still going strong. I used the built in preamp for a time, but when I upgraded to an Ortofon 2M Blue cartridge, the sound was awful. So I did the deed and took the preamp out. For the last year or so I was using the Pyle Pro preamp with the straight output from the cartridge. At this point the mains power to the turntable powered only the platter. The cartridge output went straight to the preamp. The sound was acceptable and decent, until it got really crackly sometimes. It was not due to the records being played because they sometimes sounded fine, and other times they did not. I decided it was time to upgrade to a MM specific preamp. I mostly just wanted the cutting in and out to stop, and I wanted the volume considerably loud without the increasingly annoying hiss I was noticing. I also suspected that the left channel was being slightly favored. My suspicions were confirmed when I hooked this ProJect Preamp up. Not only did it eliminate the aforementioned issues, but it improved on the sound in a way I could not have imagined!! I can't wait to go back through my Genesis and Floyd albums with this thing. Fantastic on speakers and headphones!!! Worth every penny!
    4 people found this helpful
    Report
    Reviewed in the United States on April 30, 2023
    Working very well
    Reviewed in the United States on September 6, 2022
    I listen to mostly "classical" LPs on a mostly vintage stereo system (circa '89 Thorens TT, Signet tonearm, Magnepan speakers, Hafler amp, cartridge meticulously aligned). The weak link is a lovely 50-year-old McIntosh preamp (mine has a flaky phono stage - left channel dozes off intermittently, bit of hum).

    Enter the Pro-ject Phono Box MM costing less than the repair shop charged me to open up my preamp and tell me that they can't service it. This sturdy metal box, no larger than it needs to be, no annoying lights, no switches, dials, or options, melted into my system and lifted the sound to wear it can be. An unexpected bonus was that record surface noise, already quite low, went completely black (wow).

    Thrilled over here. 5 stars.
    Customer image
    5.0 out of 5 stars Clean, natural sounding music on my vintage system
    Reviewed in the United States on September 6, 2022
    I listen to mostly "classical" LPs on a mostly vintage stereo system (circa '89 Thorens TT, Signet tonearm, Magnepan speakers, Hafler amp, cartridge meticulously aligned). The weak link is a lovely 50-year-old McIntosh preamp (mine has a flaky phono stage - left channel dozes off intermittently, bit of hum).

    Enter the Pro-ject Phono Box MM costing less than the repair shop charged me to open up my preamp and tell me that they can't service it. This sturdy metal box, no larger than it needs to be, no annoying lights, no switches, dials, or options, melted into my system and lifted the sound to wear it can be. An unexpected bonus was that record surface noise, already quite low, went completely black (wow).

    Thrilled over here. 5 stars.
    Images in this review
    Customer image
    Customer image
    Reviewed in the United States on August 25, 2016
    I bought a Pro-Ject turntable,the Carbon 2M, so this is like a match made in heaven. It was crazy easy to set up (plug and play pretty much) and it immediately corrected audio issues as well as gave me the power of sound that having a turntable requires. This was an afterthought for me as I had purchased a nice player and a nice sound system only to realize I forgot you needed a preamp to make it all sound great and loud. This is the most satisfying purchase i've made in years because of how easy it is to use and effective it is.
    3 people found this helpful
    Report
    Reviewed in the United States on March 20, 2019
    The small multiple country DC power supply caused noise or hum in my system. I believe there is a correctable product defect if a different power supply were chosen by ProJect. I returned this preamp and purchased a used Moon LP3 for $175 but it is dead quiet and a better preamp with very good specs and components. Rega or Music Fidelity are also very good quiet phono preamps and can be purchased on the used market in the under $75-200 range.
    One person found this helpful
    Report

    Top reviews from other countries

    Translate all reviews to English
    JEAN
    5.0 out of 5 stars Excelente produto.
    Reviewed in Brazil on March 28, 2024
    Excelente produto.
    Jeff
    5.0 out of 5 stars Nice sound on a budget
    Reviewed in Canada on February 8, 2024
    My first phono pre amp I purchased was the Fosi Audio tube pre amp.
    I wanted to try something solid state to see if it improved the sound quality.
    It definetely did the separation and balanced clarity mad it a worthwhile purchase.
    I hooked my secondary turntable to the Fosi.
    This is a nice sounding pre amp and highly recommend it if you don't want to break the bank.
    Nicolás H.
    5.0 out of 5 stars Funciona perfecto
    Reviewed in Mexico on August 1, 2023
    Da muy buen sonido, solo que no tiee interruptor de encendido.
    P. Alain
    5.0 out of 5 stars Très bien
    Reviewed in France on January 8, 2024
    Indispensable pour raccorder une platine Vinyle à un amplificateur ne possédant pas d'entrée "phono". Fonctionne très bien.
    Interprises
    5.0 out of 5 stars ottima qualità
    Reviewed in Italy on May 19, 2023
    Ne ho provati 2 di altre marche prima di prendere questo e devo dire che la qualità è enormemente superiore: audio alto e ben definito.. ovviamente parlo in base al mio impianto, giradischi yamaha anni '70 collegato a delle casse attive della EDIFIER