The 3-2-1 was replaced by the '321 Series II' in 2004, which included two small speakers and a subwoofer. The '3-2-1 GS' model was introduced in 2003, named for its use of Bose 'Gemstones' small speakers (which have two drivers pointing forward and one pointing to the side). The first 2.1 audio system from Bose to include a DVD player was the '3-2-1', released in 2001. The Lifestyle 10 included a single-disk CD player, an AM/FM radio and 'Zone 2' RCA outputs which could be configured to output a different source to the primary speakers.Ī 6-disk magazine-style CD changer was introduced in 1996 and a touchscreen remote was introduced in 1999.

The first 2.1 audio system from Bose was the 'Lifestyle 10', which was released in 1990. Early systems used an in-built CD player, followed by a DVD player and later models were AV receivers (which used external audio sources).

From 1990 until the early 2010s, Bose sold several 2.1 channel audio systems, which used two small satellite speakers and a subwoofer.

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