Ortofon ST-70 Step-Up Transformer

The ST-70 combines the finest 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 one of the quietest, most revealing transformers.

Specifications

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

Configuration B
Recommended Cartridge Impedance: < 10 Ω
Gain at 1 kHz: 30 dB
Frequency Response (± 1 dB): 10 Hz–80 kHz
Recommended Load: 47 kΩ // 200 pF

Trafo Output Loading: 47 kΩ // 200 pF

Dimensions (WHD): 2.28" x 5.91" x 5.31" (58 x 135 x 150 mm)

Weight: 2.72 lb. (1.233 kg)