I'm assuming that you are biwiring. If not, do so the difference is huge.
Change the binding posts on the rear of the speaker to higher quality ones. When you take out the old binding posts you will notice that the wires are bolted on and you will be amazed that any signal gets through to the speaker.
Think about getting another Plinius and bi-amp.
If you really want to get the ultimate performance out of the 1.6s, upgrade the crossover parts; you will be surprised at how cheap the factory parts are.
After doing the above, you will be able to seriously evaluate speaker cables. Try the following: Nordost Blue Heavens, Coincident CST-1 or TRS or Kimber 8tc.
Change the binding posts on the rear of the speaker to higher quality ones. When you take out the old binding posts you will notice that the wires are bolted on and you will be amazed that any signal gets through to the speaker.
Think about getting another Plinius and bi-amp.
If you really want to get the ultimate performance out of the 1.6s, upgrade the crossover parts; you will be surprised at how cheap the factory parts are.
After doing the above, you will be able to seriously evaluate speaker cables. Try the following: Nordost Blue Heavens, Coincident CST-1 or TRS or Kimber 8tc.