The Ortofon SPU Mono CG 25 DI MKII is a specialized Moving Coil cartridge designed for the playback of early 25 µm mono recordings. It features a spherical stylus profile, offering a method of playback that emphasizes sonic accuracy for vintage audio enthusiasts. The cartridge outputs an impressive 1.5 mV, which allows compatibility with various medium-gain moving coil transformers. It is particularly paired with the Ortofon ST-M25 moving coil transformer, designed exclusively for this cartridge. The SPU series has its roots in the 1950s and 1960s, originally dubbed "pick-ups" for its capability to reproduce new stereo records. The SPU Mono CG 25 DI MKII maintains a traditional design while incorporating modern advancements in materials and technology to enhance audio performance without sacrificing its original sound profile. This model is distinguished by its high tracking ability and specific frequency response, catering especially to audiophiles who engage with vintage audio systems.
