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Since 1984, German manufacturer SPL offers analog and digital audio signal processors for the professional sound and music production. Milestones of our RD history are the patented VITALIZER® sound optimization processor, the invention of the mother of all transient design tools, the TRANSIENT DESIGNER, the launch of the world’s first discrete 5.1 surround miking system ATMOS® 5.1 already in 1998 and the development of the SPL SUPRA op-amps with an unprecedented operating voltage of 120 Volt.
