Control box location

[wingfieldtiffany]

My new home is pretty wired and has 3 speakers in the house and 2 outside.. where would I look for the control? We would really like to use for the Superbowl

 

[USAFRet]

My new home is pretty wired and has 3 speakers in the house and 2 outside.. where would I look for the control? We would really like to use for the Superbowl

Ask the builder or previous owner?
Garage, closet, mancave?