Ortofon SPU Gold Reference

The SPU Gold Reference

The SPU Gold Reference, introduced in 1989, was limited to 335 units.

Features:
Cantilever: Gold plated Alu
Stylus: Replicant 100
Armaturewire: 99,99999% Copper 
Magnet: Alnico
Housing: Aluminum-Magnesium alloy

These improvements made it possible to reduce the tracking force and obtain a more linear frequency response.
Sonically, the Gold Reference is a genuine SPU, known for it’s beautiful fluid midrange, but with just a taste of extra detail.

SPU Gold Reference

• Output voltage at 1000 Hz, 5 cm/sec: > 0,2 mV
• Channel balance at 1 kHz: < 1 dB
• Channel separation at 1 kHz: > 25 dB
• Channel separation at 15 kHz: > 15 dB
• Frequency range at -3 dB: 20-50,000 Hz
• Frequency response: 20-20,000 Hz +2.5 dB/-0 dB
• Tracking ability at 315 Hz, lateral: >70 µm
• Compliance dynamic lateral: 10/10 µm/mN
• Stylus type: Ortofon Replicant 100
• Stylus tip radius: r/R 5/100 µm
• Tracking force range: 2.5-3.5 g (25-35 mN)
• Tracking force recommended: 3.0 g (30 mN)
• Tracking angel (vertical): 20°
• Internal impedance DC resistance per channel: 3 Ohm
• Recommended Load impedance: >10 Ohm
• Cartridge body material: Aluminum-Magnesium alloy
• Cartridge colour (body/shield): Gold/Black
• Cartridge weight complete with head shell: 32 g