Logitech Z623 amp

[MadDoggy]

i want to upgrade the sub on the z623 but dont know if the sub amp can handle 2 Ohm or 4 Ohm and if they can wat would the watts

 

[americanaudiophile]

You want to replace the woofer in the sub woofer cabinet?
You should open the cabinet and see if the original woofer has any markings to indicate the impedance or a model number..
If not you can measure it with a VOM
http/www.wikihow.com/Measure-Speaker-Impedance
If you can ID the amp chip that drives the sub you could find the specs. That would tell you what impedances it can handle and the power output.

 

[ssddx]

alternatively, you could disable the sub on the 623 and connect an active sub up to the pc itself.