Product
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