Ortofon SPU GTX S Moving Coil Phono Cartridge with Built-In Step-Up Transformer

The Ortofon SPU GTX S Moving Coil Cartridge expands the iconic SPU series with the latest innovations in usability while preserving the ranges renowned tonal richness. A key enhancement is the built-in step-up transformer, which was developed in collaboration with Lundahl Transformers. This feature allows the SPU GTX S to connect directly to standard phono stages or amplifiers, offering a setup comparable to moving magnet cartridges and making it more versatile across audio systems.

Each SPU GTX cartridge is hand-built in Denmark, ensuring meticulous quality control and reliability. The GTX S features a spherical diamond stylus and a unibody design made from a glass-fibre reinforced co-polymer—a new material introduced for the GTX models. This construction reduces resonance, providing stable and precise performance for the cartridge's delicate generating system. These elements make the GTX S a blend of tradition and modern engineering for vinyl enthusiasts.

Specifications:

• Output voltage:  4 mV
• Stylus type and radius:  Spherical / R 18 µm
• Stylus suspension:  Ortofon Exclusive
• Coil system and material:  Quad coils / OFC
• Channel balance and separation at 1 kHz:  1.5 dB / 20 dB
• Frequency response 20 Hz - 20 kHz:  ±3 dB
• Tracking ability at 315Hz:  60 µm
• Dynamic lateral compliance:  10 µm/mN
• Recommended tracking force:  4 g
• Recommended load resistance and capacitance:  47 kΩ / 150-600 pF
• Internal impedance, DC resistance:  610 Ω
• Cartridge weight:  38 grams