SKU: 97250586606

Ortofon ST-70 Transformer

Sale price$1147.95 Regular price$1275.50
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Ships within 48 hours · Estimated delivery Aug 10 - Aug 15

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Description

Ortofon ST-70 TransformerOrtofon ST 70 Transformer The Ortofon ST 70 reserved for the discerning audiophiles and music lovers. The ST 70 combines the fine components along with world class engineering, for unparalleled sound reproduction. Starting with high quality Lundahl transformers, surrounded by a specialized mu metal shielding, listeners can be assured that every detail in a complex array of notes is reproduced with utter purity, with freedom from internal and external

Ortofon ST-70 Transformer

The Ortofon ST-70 reserved for the discerning audiophiles and music lovers. The ST-70 combines the fine components along with world-class engineering, for unparalleled sound reproduction.

Starting with high quality Lundahl™ transformers, surrounded by a specialized mu-metal shielding, listeners can be assured that every detail in a complex array of notes is reproduced with utter purity, with freedom from internal and external sources of interference. These two items combined make the ST-70 transformer one of the quietest, most revealing transformers.

Featuring dual mono design, the ST-70 provides discrete circuitry for each channel, resulting in the elimination of crosstalk and possible distortions.  This results in cleaner, clearer reproduction with substantially increased stereo imaging.  Regardless of the composition being played, the ST-70 expansive stereo separation provides lifelike realism, and accurate tonal balance devoid of coloration.

ST-70 configurations and technical data

Technical data Configuration A:
Recommended cartridge impedance 5-50 Ω
Gain 24 dB at 1 kHz
Frequency response 10 Hz - 100 kHz ± 1 dB
Recommended load 47 KΩ // 200 pF

Technical data Configuration B:
Recommended cartridge impedance < 10 Ω
Gain 30 dB at 1 kHz
Frequency response 10 Hz - 80 kHz ± 1 dB
Recommended load 47 kΩ / 200 pF

Dimensions and weight
Dimensions: 58 mm(W) x 135 mm(H) x 150 mm(D)
Weight: 1.233 kg

    Terminal connections

    To further minimize signal degradation and maximize signal flow, the ST-70 has been engineered using high quality industrial grade PCB.  Additionally, gold plated RCA jacks with Teflon insulation provide optimal conductivity for use with high quality interconnects. Internally, the unit is assembled with an absolute bare minimum of internal wiring, preserving absolute signal integrity. 

    1. Output terminal for Right channel RCA plug
    2. Input terminal for Right channel RCA plug
    3. Grand earth terminal
    4. Output terminal for Left channel RCA plug
    5. Input terminal for Left channel RCA plug

     

    The ST-70 applications

    The ST-70 maintains compatibility with most Moving Coil cartridges by using internal jumpers to select between two gain/impedance options. This affords audiophiles with broad flexibility while still maintaining a clean aesthetic.
    The ST-70 transformer is a perfect partner for the Cadenza Series.

    Why use a transformer? Since the output of MC cartridges is low, higher gain is required to utilize it, such as that provided by Step-up moving coil transformers or MC phono preamplifiers. Although both devices provide this requirement, both are fundamentally different in function and in sonic character. This is where Step-up moving coil transformers are frequently seen as superior; they are completely passive and offer exceptional noise performance and sound quality.


    Shipping Notes
    • Free Standard Shipping on $100+ Orders to the USA.
    • Except Preorder products are shipped in 48 hours.
    • Delivery to the USA:
    1. Standard Shipping : 3-10 business days
    • If time is of the essence, please consider selecting expedited delivery for faster service.
    Exchange/Return Notes
    • We offer a 30-day return/exchange service after receiving.
    • Final sale items are not eligible for returns or exchanges.
    • To process your return/exchange, please contact us at [email protected]
    • Please click here for more details>>> Return & Exchange Policy
    SKU: 97250586606

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    LY
    San Leandro, US
    ★★★★★ 3
    Its ok.
    I purchased 2 jars. 1 for the coffee beans and the other for ground coffee. The vacuum suction system is just ok.
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    Reviewed in the United States on March 17, 2025
    A
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    Armando Ortiz
    Cuba, US
    ★★★★★ 4
    Functional, glass canister.
    I like the design, I really like the fact that it’s glass, not plastic. Easy to extract the air out, I don’t have to do an extended work out to pump the valve, easy release. The only thing is the part when I need to open the unit to get my coffee beans out. All you need to do is just twist the lid, the glass container makes me a little nervous, but just grab from the bottom part to open it and it’s fine! I’m happy with it, I might buy again to store more coffee!! Great product though!!
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    Reviewed in the United States on October 18, 2024
    J
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    Jaromir S.
    Charlottesville, US
    ★★★★★ 5
    Fits Sage Bambino Plus
    Works flawlessly with Sage (Breville) Bambino Plus. It even comes with a straight basket which is an upgrade for the machine! People complaining about the magnets need to use their brains to turn first, pull second.
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    Reviewed in the United States on January 22, 2026
    C
    Verified Purchase
    CRISTIAN T.
    Natrona Heights, US
    ★★★★★ 4
    Magnets fell out. Everything else works well
    Magnets holding the back piece fell out. Other than that it works as advertised.
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    Reviewed in the United States on May 29, 2025
    A
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    Albawab
    Bozeman, US
    ★★★★★ 5
    Really Cool
    This is actually a well made portafilter. It was such a good idea to be able to have a nice WDT tool built in that doesn’t take up some extra counter space or anything. It minimizes clutter and just was a good idea so you always have it handy. Definitely would recommend.
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    Reviewed in the United States on December 18, 2024

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