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Pro-Ject Phono Box MM Phono Preamplifier (Black)

4.5 4.5 out of 5 stars 1,026 ratings

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  • 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

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 1,026 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

    Looking for specific info?

    Customer reviews

    4.5 out of 5 stars
    4.5 out of 5
    1,026 global ratings

    Customers say

    Customers like the sound quality, performance, quality, appearance and ease of setup of the preamp. For example, they mention it works well, it does the job for entry level and that it has a great compact design. That said, they say it's easy to set up.

    AI-generated from the text of customer reviews

    69 customers mention51 positive18 negative

    Customers like the sound quality of the receiver or amplifier. They mention that it has good sound, is much quieter than their original MM phono stage, and immediately corrects audio issues. The RIAA equalization curve sounds appropriately applied, and the sound is very clear. Some say that the product increases the sound 5 fold and has no ground hum.

    "...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

    "...But honestly the sound difference was not huge. Totally recommended for me for it's cost." 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

    57 customers mention49 positive8 negative

    Customers like the performance of the preamp. They say it works well, is easy to use, and provides a bridge between their turntable and speaker. Some say that the pre amp works well enough for their needs and is happy with the quality and results. Overall, customers are satisfied with the performance and quality of the product.

    "...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

    "...I decided to give this one a try. Luckily, It works very well. The sound is very clear...." Read more

    49 customers mention43 positive6 negative

    Customers like the quality of the receiver. They say it has a great price point for the quality and is the best option at this price point. Customers also say it works well and is well built. They mention that the music reflected sounds rich and full of both bass and bass.

    "...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

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

    21 customers mention21 positive0 negative

    Customers like the appearance of the amplifier. They say it has a great compact design that doesn't take up shelf space. They also say it's a solid little unit that fits nicely behind the receiver. Customers also mention that it'll provide good sound quality with no grounding issues.

    "...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 easy to set up. They say it's simple and effective. Customers also mention that it'll hook up to any other device.

    "...The preamp was easy to connect and worked with a slight hum. The problem was that it did not reproduce any lows or highs...." Read more

    "...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

    4 customers mention4 positive0 negative

    Customers are satisfied with the discernability of the receiver or amplifier. They mention that the clarity is insane, the presence, depth, and warmth are all there. Some mention that it comes out clear, easy to install, and has no problems. Overall, most are happy with the product's discernability.

    "...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

    4 customers mention4 positive0 negative

    Customers are satisfied with the weight of the receiver. They mention that it is very solid, metal, and has weight to it, so it's not delicate. They also say that it'll sit firmly on the desk next to their turntable.

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

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

    "...It's compact but it's heavy enough to sit firmly on the desk next to my turntable and the weight of the cables hanging off of it don't affect it, so..." Read more

    "Great packaging, very substantial weight. Thought it had to be good workmanship! Probably is, but not working...." 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.
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    Top reviews from the United States

    Reviewed in the United States on March 31, 2019
    4 people found this helpful
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    Reviewed in the United States on March 2, 2017
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    Reviewed in the United States on November 12, 2016
    29 people found this helpful
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    Reviewed in the United States on April 30, 2023
    Reviewed in the United States on September 6, 2022
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    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.
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    Reviewed in the United States on February 5, 2023
    One person found this helpful
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    Reviewed in the United States on January 13, 2019
    6 people found this helpful
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    Reviewed in the United States on August 25, 2016
    3 people found this helpful
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    Top reviews from other countries

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    Nicolás H.
    5.0 out of 5 stars Funciona perfecto
    Reviewed in Mexico on August 1, 2023
    Thom Wigle
    5.0 out of 5 stars Super easy to use, but pretty expensive…
    Reviewed in Canada on November 30, 2021
    2 people found this helpful
    Report
    Interprises
    5.0 out of 5 stars ottima qualità
    Reviewed in Italy on May 19, 2023
    Erne Kis
    5.0 out of 5 stars Gute Phonovorstufe
    Reviewed in Germany on January 23, 2023
    Eric
    5.0 out of 5 stars Simple et efficace
    Reviewed in France on October 15, 2021