Hi,
I have an older 5.0 surround sound speaker setup and am trying to figure out if it is worth it to get a sub-woofer to go to a full 5.1 setup.
My main speakers are Tannoy, Mercury M4's with this spec:
Drivers:
… high frequency 25mm (1") soft dome
… low frequency 2 x 165mm (6.5") coated...