For most Zvox speakers, if you look at the rear of the ZVOX system you will see the model printed on the back panel for example 440, 570, 670 or 770. 


If you own the ZVOX Sound bar systems you will see the serial number on the back or bottom panel. The model number is the first three digits, for example 157, 257, 357 or 380.


ST157 6540654 1233


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