Thorens SPU TD 124 Cartridge

The SPU 124 modernizes the classic SPU design with several optimizations designed for optimum compatibility to the new Thorens TD 124 DD.

The SPU 124 features a revised generator system which allows for a maximum output of 0.5 mV, relaxing the requirement for high gain transformer or active preamplification systems.

While still making use of a highly polished Nude Elliptical stylus, the stylus tip mass has been reduced significantly, resulting in reduced VTF and higher tracking ability.

Technical specifications

• Output voltage at 1000 Hz, 5cm/sec. - 0.5 mV
• Channel balance at 1 kHz < 1.5 dB
• Channel separation at 1 kHz > 23 dB
• Channel separation at 15 kHz  > 15 dB
• Frequency response - 20-20.000 Hz ± 2 dB
• Tracking ability at 315Hz at recommended tracking force *) > 70 µm
• Compliance, dynamic, lateral - 8 µm/mN
• Stylus type - Nude elliptical
• Stylus tip radius - r/R 8/18 µm
• Tracking force range - 2.5-3.5g
• Tracking force, recommended - 3.0g
• Tracking angle - 20°

*) typical value

Internal impedance, DC resistance - 2 ohm

Recommended load impedance - 10 - 50 ohm

Cartridge weight - 30 g