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Ortofon ST-70

$1,299.00

Ortofon new ST-70 Moving Coil 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

ST-70 terminal connections.png

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.

1 in stock

Description

Ortofon new ST-70 Moving Coil 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

ST-70 terminal connections.png

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.

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