Sound Performance Lab SPL, or Sound Performance Lab, is a German company that creates a number of plugins for music production. SPL is well known for plugins like their DrumXchanger, which is a drum replacement plugin. Founded:1984Founder(s):Unknown Average User Rating 0 0 votes Please sign in to rate. Your Rating 0 Contact Phone Number: Unknown Address: SPL electronics GmbH Sohlweg 80 41372 Niederkruechten Germany Email: info@soundperformancelab.com Online: History History coming soon!