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SPL (Sound Performance Lab) is a German pro audio manufacturer founded in 1983 by Hermann Gier and Wolfgang Neumann, with headquarters in Niederkrüchten. The company is widely recognized for its focus on analog signal processing and innovative circuit design, particularly its proprietary 120V rail technology, which provides increased headroom, dynamic range, and clarity compared to standard audio gear. SPL produces a broad range of equipment for professional studios, mastering engineers, and high-end home audio, including compressors, EQs, headphone amplifiers, and monitoring controllers. Known for combining precision engineering with musicality, SPL has earned a strong reputation in both recording and mastering environments for delivering clean, detailed, and reliable performance.

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Vitalizer MK3-T

The SPL Vitalizer MK3-T is a tone-shaping enhancer that brings clarity, punch, and depth to any mix using a unique combination of psychoacoustic processing and tube warmth.

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Phonitor 3

The SPL Phonitor 3 is a high-end headphone amplifier and monitor controller with crossfeed technology, designed for precise stereo imaging and mixing accuracy. It delivers transparent, reference-grade sound for both headphones and loudspeakers.

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