Spark LIVE is an all-in-one Spark smart amplifier and multi-channel PA that comes with its own built-in cabinet.
Spark CAB is a powered guitar cabinet designed to support Spark amps and other amps to provide them with louder volume. In simple terms, Spark LIVE is an actual multi-channel amplifier and PA system that processes tone for guitar, bass, vocals, and more. Spark CAB is a speaker system to provides loud volume to your current amplifier. Additionally, you can use Spark CAB as an additional extension cabinet for Spark LIVE.