Dell, Speakers, models:

A215 - PC Multimedia Speakers	Setup Manual
A225	Setup Manual
A525 - 2.1-CH PC Multimedia Speaker Sys	Setup Manual
AC411	User Manual
AE215	User Manual
AE715	User Manual
AS501 - Sound Bar PC Multimedia Speakers	Setup Manual
AS501PA - Sound Bar PC Multimedia Speakers	Setup Manual
AX210	Setup Manual
AX510PA	Setup Manual
AY511	User Manual
Speaker	User Manual