Ortofon | ST-70

ST Series Step-up Transformers
Step Up Transformer for Moving Coil (MC) Cartridges.
Dual-Mono construction. Dual Lundahl transformers with dedicated mu-metal shielding. Internal jumpers to select between two gain/impedance configurations. Gold-plated RCA connectors with Teflon insulation. Ideal partner for MC cartridges especially those of the Cadenza Series.
Dual-Mono construction. Dual Lundahl transformers with dedicated mu-metal shielding. Internal jumpers to select between two gain/impedance configurations. Gold-plated RCA connectors with Teflon insulation. Ideal partner for MC cartridges especially those of the Cadenza Series.
Other features
Configuration A
- Recommended cartridge impedance: 5ohm-50ohm
- Gain: 24dB at 1KHz
- Frequency Response: 10Hz-100KHz (+/-1dB)
- Transformer output load: 47Kohm// 200pF
Configuration B
- Recommended cartridge impedance: <10ohm
- Gain: 30dB at 1KHz
- Frequency Response: 10Hz-80KHz (+/-1dB)
- Transformer output load: 47Kohm// 200pF
- Dimensions (DxWxH): 135x150x58mm
- Weight: 1.23Kg

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