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Ortofon ST-70 MC Transformer

Free UK Delivery



Ortofon ST-70 MC Transformer

The Ortofon ST-70 MC (Moving Coil) step-Up transformer is designed to boost the output of your premium moving coil cartridge, to take the pressure off your phono stage. Designed for audiophiles and music lovers, the ST-70 is designed to work perfectly with Ortofon's Cadenza cartidges, however it will work just as well with any other high-end moving coil cartridges, thanks to its two gain/impedance options.

The ST-70 uses high quality Lundahl™ transformers, surrounded by a specialized mu-metal shielding, designed to completely remove any kind of interference. Along with the dual mono design, used to isolate the two channels, further reducing unwanted noise or crosstalk. Using the ST-70 will result in an audibly cleaner, clearer playback, with an increase in stereo imaging and no added colouration.

To further minimize signal degradation and maximize signal flow, the ST-70 has been engineered using a high-quality, industrial-grade PCB. Additionally, gold plated RCA jacks with Teflon insulation provide optimal conductivity for use with high quality interconnects.

Key Features

  • Premium step-up transformer
  • Ideal partner to the Ortofon Cadenza moving coil series
  • Upgrade your sound and reduce pressure on your phono stage
  • Premium components and electrical design
  • Dual mono design
  • Compact, stylish chassis
  • Two configurations for different gain/impedance cartridges

Read Henley Audio's Article on the benefits of using a step-up transformer.


Who are Ortofon?

Ortofon are a Danish manufacturer of high quality phono cartridges, designed to get the very most out of your vinyl collection from a variety of price points. Ortofon cartridges, both Moving Magnet and Moving Coil configuration are commonly found supplied with high quality ProJect turntable models, but Ortofon cartridges sound exceptional with any compatible turntable.

Ortofon ST-70 MC Transformer Specifications
Dimensions   122 X 43.5 X 102mm


 Configuration A
 Frequency Response  10Hz - 100kHz (± 1dB)
Gain   24dB at 1kHz
Recommended Cartridge Impedance   5Ω - 50Ω
Recommended Load   47 kΩ / 200 pF
 Configuration B
Frequency Response   10Hz - 80kHz (± 1dB)
Gain   30dB at 1kHz
Recommended Cartridge Impedance  < 10Ω
Recommended Load  47 kΩ / 200 pF


UK Delivery

Providing your item is in stock, the order is usually dispatched within 24 hours. Postage and packing is completely free for orders over £100*. Out of stock items will be dispatched as soon as they become available, which can take between 4 to 21 days      

UK Delivery orders are sent via our couriers' DPD Local on a next-day-delivery service and usually take between 1 and 3 days. 


Local Delivery

Certain manufacturers disallow mail order for their products, however a local delivery may be possible.

We offer a local delivery service for a large number of our products. After your order has been placed, a member of the Hifi Gear team will contact you to arrange a convenient date and time for your local, personal delivery.


Click & Collect

We offer a free ‘Click & Collect’ service on all items. As soon as your order has been completed and is ready for collection a member of our team will be in contact with you. Orders can be collected from our store at 11 King Street, Hereford, HR4 9BW.


Please use this link to find more detailed delivery information or contact us for more details

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