The SPU Synergy GM Refurbished cartridge

The SPU Synergy features a wood-based housing and has 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.

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Technical data

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 *) > 60 µm
Compliance, dynamic, lateral - 8 µm/mN
Stylus type - Nude Elliptical
Stylus tip radius - r/R 8/18 µm
Tracking force range - 3.0-4.0 g (30-40 mN)
Tracking force, recommended - 3.5 g (35 mN)
Tracking angle - 20°
*) Typical value

Internal impedance, DC resistance - 2 ohm
Recommended load impedance - 10 - 50 ohm
Cartridge body material - Ground wood and resin composite
Coilwire material - High Purity Copper (OFC)
Cartridge colour - Shiny Black
Cartridge weight - 28 g

Download the SPU series datasheet

Download the SPU series brochure