ORTOFON SPU GTX E

The Ortofon SPU GTX E cartridge offers the best of both worlds, combining the musicality and rich tonal character that have defined Ortofon's SPU series for decades with the latest innovations in audio technology. The SPU GTX E delivers precise and detailed sound, thanks to the upgrade to an elliptical stylus. Compared to the spherical stylus, the elliptical one features a more complex shape with a narrower front radius and a wider side radius. This design allows for a larger contact area with the groove walls, improving tracking ability and enhancing sound fidelity.

The SPU GTX E combines the warmth typical of the SPU series with modern engineering to deliver exceptional audio clarity. The built-in MC step-up transformer ensures high-output, low-noise performance without the need for additional amplification.

SPU GTX cartridges are hand-assembled by expert craftsmen in Denmark. Their unibody housings are molded in a single piece from a glass-fiber reinforced co-polymer, a material never before used for SPU cartridges. This guarantees a stable, rigid, and low-resonance structure that houses the high-precision generating system. The bottom cover is made from the same innovative material, encasing the motor in a uniform and cohesive design.

The SPU GTX E shares the same setup and construction as the GTX S, but the configuration is upgraded with an elliptical diamond stylus. The SPU GTX series is designed to simplify installation without compromising sound quality. During the development of the GTX series, Ortofon chose to collaborate with Lundahl Transformers to design the new step-up transformers. Thanks to the built-in step-up transformer, these cartridges can be connected directly to any phono stage or amplifier with the same ease as a moving magnet cartridge, with no extra equipment required.

Technical Specifications:

• Channel balance at 1 kHz: 1.5 dB
• Output voltage at 1 kHz, 5 cm/sec: 4 mV
• Channel separation at 1 kHz: 20 dB
• Frequency response 20 Hz - 20 kHz: ±3 dB
• Tracking ability at 315 Hz: 60 μm
• Dynamic compliance, lateral: 10 μm/mN
• Stylus type: Elliptical
• Stylus tip radius: r/R 8/18 μm
• Recommended tracking force: 4 g
• Tracking angle: 20°
• Internal impedance, DC resistance: 610 Ω
• Recommended load impedance: 47 kΩ
• Coil wire material: OFC
• Cartridge color: Black
• Cartridge weight: 38 g
• Recommended load capacitance: 150 – 600 pF