@paulgardner - Those cables use just plain copper and as such will impact the dynamics performance of your system !!!
Save yourself time and money and invest in Zavfino speaker cables...
https://zavfinousa.com/collections/speaker-cables/products/nova-speaker-cable
The are a little more expensive, but they work and you WILL hear improvements across the board AND, they have a nice product lineup so when it’s time to upgrade there is a cable that will fit your budget.
So why do they work?
- the cable geometry used - very low noise floor
- UP-OCC copper wires - which improves the dynamic performance of a cable
- choice of wire insulations - which improves the micro details
- which in turn improves imaging
- e.g. venue acoustics - those little echoes and reverberations of the concert hall
Also try their interconnects and power cables - just excellent!
And just in case you are wondering - these cables will improve the sound of ANY system they are installed on, regardless of its components
There are better cables out there, but not at their price
Regards - Steve