MCM Electronics

Phono Input AttenuatorMCM Part #: 50-7240  |  MCM Custom Audio Part #: 50-7240

Phono Input Attenuator 4.1 stars from 6 ratings and 5 reviews.
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Phono Input Attenuator
Device allows standard line level items to be played through magnetic phono inputs, commonly found on older home audio receivers and mixing consoles. CD/DVD/ MP3 players, tape decks, VCRs, computer sound cards and tuners may now be connected to unused phono inputs. In addition to providing the required signal attenuation, this unit provides passive equalization to compensate for the RIAA curve that is present on magnetic phono inputs.

Product Description

  • Passive device requires no power
  • Very compact size
  • Rugged metal enclosure
  • Gold plated female RCA inputs
  • Gold plated male RCA outputs on a 7" pigtail
  • Dimensions: 1" (H) x 2¼" (W) x 3" (D)

  • Product Reviews

    • "Input Attenuator" by pgind0 on 10/17/2012
      Overall: 5 out of 5

      A very simple "Fix" for a common problem. I could have built one that was similar , but not for the price.

    • "Works Great" by NeubaumTurk_DYCA on 9/26/2011
      Overall: 5 out of 5
      Top 10 Contributor

      Used a few of these some time back, just had another situation where I needed it again. Customer wanted sound card plugged into old stereo receiver, only available input was phono. Works like a champ every time.

    • "Works great" by installpro on 4/9/2010
      Overall: 5 out of 5
      Top 10 Contributor

      I have used these on a couple of occasions. Works great every time. Simple, cost effective, well built and straight forward. Perfect when the customers receiver is out of line level inputs, and has "just-one-more" item to plug in. If you have an unused turntable input, and you need to plug in a CD/DVD player, or iPod, laptop or anytrhing else, this is great!

    • "Doesn't work." by eversoul43 on 2/25/2010
      Overall: 1 out of 5

      Followed instructions connected to phono inputs. Line out from into the line inputs of the attenuator. Loud high pitched hum was the result. There goes 10 bux. Wish it worked because I really wanted to use that phono input. BTW the input is not the problem. Record player works fine. Ended up buying a av selector for 2 inputs going into one line level input. I really wish I had something better to say about this product, but the sad truth is it doesn't work.

    • "Great device!" by orlandoc on 1/6/2010
      Overall: 5 out of 5

      This is a great way of reclaiming an unused phono input. I have an ADCOM GTP 500II preamp, and I actually use one of the tape input jacks to connect a tube phono stage for a turntable. That leaves me with an unused phono input that I couldn't use for anything else - until now! Very good quality, excellent sonics, and great price.

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    Package Specifications & Dimensions
    Weight:0.39 lbs.
    Warranty:365 days
    Need to Return?
    Length:4 in.
    Width:2.75 in.
    Height:1.5 in.
    Shipping Information
    Extra Shipping Charge:No
    Drop Ship:No
    Catalog Pages

    MCM Cat 57, Page 312

    MCM Cat 56, Page 035

    Mfr. Info

    MCM Custom Audio Logo
    Mfr. Name:MCM Custom Audio
    Mfr. Part Number:50-7240