I have a pair of KEF 107s and tried them with and without the KUBE in a blind test and my ears could not tell the difference when it was in and when it was out of the circuit. So when asked if I wanted to sell it, I did.
My KEF's are in LN condition and so far these 20+ year old speakers show no sign of needing the woofers refoamed, but then I haven't moved them for the last 20!!
My KEF's are in LN condition and so far these 20+ year old speakers show no sign of needing the woofers refoamed, but then I haven't moved them for the last 20!!