Mediator Step-up Transformer

 1.301,65 ( 1.575,00)

The mediator is available in three versions:

Mediator 20
Step-up ratio = 1:20 with a gain of 27 DB.
The Mediator 20 is suitable for cartridges with an output voltage up to 0.35 mV.
Like an Ortofon SPU Classic.

Mediator 10

Step-up ratio = 1:10 with a gain of 20 dB.
The Mediator 10 is suitable for cartridges with an output voltage of 0.35 mV up to about 0,8 mV.

Mediator 5

Step-up ratio = 1:5 with a gain of 14 dB.
The Mediator 5 is suitable for cartridges with an output voltage of 0,8 mV to 1 mV.
Like some EMT cartridges.

How to calculate the Step-up gain for MC cartridges.
The gain of a step-up is specified in dBs. When you multiply the gain of the step-up with the output voltage of your element, you have the gain at the Phono amplifier. For most elements up to 0.35 mVolt output voltage you need a step-up ratio of 1:20 (27 dB). Above 0.35 mVolt a step-up ratio of 1:10 (20 dB) is recommended.


Step-up ratio

Gain (dB)

Mediator 5



Mediator 10



Mediator 20



Ortofon ST-7



Mediator specification:

  • Frequency respons: 10 Hz. - 80 kHz./ -1 dB.
  • T.H.D. 20 Hz.: < 0.006%
  • High Permeability Nickel Core
  • Double Shielded and decoupled
  • Dimension: 140 x 85 x 90 mm.
  • Weight: 985 g.

In Stock

6 reviews for Mediator Step-up Transformer

  1. frank

    na lang zoeken en proberen deze gevonden en ben geweldig goed geholpen. overtreft de verwachtingen en klinkt zeker zo goed als units van dubbele prijs.

  2. Michele P.

    I’ve been curious for while to try out the Mediator 20. After just approx. 30 hours of listining I can say… I’m happy that I did it. The Mediator gives my system already a more musicaly sounding… or more flow.

    For my setup with SPU Master Silver and a GrooveMaster III 12″ it is a perfect match!!!

    Thank you Maro 🙂

  3. Herwig

    The Audio Creative Mediator 1:5 (for EMT) 2023 requires a play-in period of about one week. During the break-in period, it sounds very ill-tempered, as is usual with many hi-fi devices.
    When played in, it gives free rein to the music. Great resolution, dynamic with very good timing. The whole thing without sharpness. The usual hi-fi blah-blah for a very good product with a great fun factor.
    It is a clear improvement on the build in MC Transformer of a Ear Paravicini 864 preamp and on a WLM Phonata Reference phono preamp. The sound source is an EMT 948 turntable with different EMT MC cartridges. Tonearm connection cable Yannis Tome Silvercord Plus. Active loudspeaker with ATC midrange dome.
    By the way, the Mediator’s workmanship is excellent.

  4. marcel

    Dat kleine dingen tot grote prestaties in staat zijn was al bekend, dit is er ook één.
    Toen ik het kleine juwelendoosje binnen kreeg, zag ik al dat de afwerking prachtig en vakkundig is. na de plaatsing in mijn systeem, kan het inspelen beginnen.
    Inspelen is echt nodig, en vrij lang, 50 a 60+ uur, in tegenstelling tot sommige apparatuur, neemt de mediator geen “stapjes”, maar gaat heeeel geleidelijk steeds mooier klinken, na 20 uur merk ik dat hij steeds gedetailleerde en vloeiender gaat spelen, richting de vijftig uur wordt hij echt briljant, WOW!!, dit is echt een bijzondere SUT.
    Ik kan hem aanraden voor elk systeem, SUPER!!

    It was already known that small things are capable of great achievements, this is one of them.
    When I received the small jewelry box, I could already see that the finish is beautiful and professional. after the placement in my system, the break-in can start.
    break-in is really necessary, and quite long, 50 to 60+ hours, unlike some equipment, the mediator does not take “steps”, but gradually starts to sound more and more beautiful, after 20 hours I notice that he is playing more and more detailed and smoother , towards fifty hours it becomes really brilliant, WOW!!, this is a really special SUT.
    I can recommend him for any system, SUPER!!

  5. Frank Koevoets

    Great Transformer! I makes my SPU meister MKII sing ! It beats the triple priced Ortofon ST80 in musical performance with an SPU. Highly recommended!

  6. Kashef

    One word: Enchanting!
    When I unpacked the red jewelry box and connected it to my system, I was ill prepared for the shock – and awe – of a lifetime. In duet with my Shindo Giscours preamplifier, which is in a much, much higher price bracket, the pair sang more beautifully than any choral work and presented music in a full-bodied way than did Ben Webster when he ‘met’ Gerry Mulligan. Your creation is, it would seem, now the most important link in the chain of my arguably ‘high-end’ system. And all of this for a price which can only arise out of a philosophy and not a marketing strategy. You have indeed reached out to the mass with a true ‘audiophile’ component, a jewel of a product Für Das Volk.

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