Best Sounding Adapter - Making RCA into Banana or Spade? Thanks!

The cable will connect an integrated amp (banana or spade) to a subwoofer (RCA).   The cable is RCA both ends.  I want to avoid cutting off the RCA at one end and so use a banana / spade adapter. Thank you for your help :-)

Thank you to everyone who has kindly shared their thoughts - much appreciated!
I’m certainly learning and appreciate the insights and caution too. My rig is:

Integrated Amp - Unison Research "Unico" (Gen. 1 with the IR remote).
It has speaker outputs and a "Tape" RCA output.

Home Theater / Audio Tower Speakers - Definitive Technology BP2000.
Bipolar, so same speakers back and front, plus a 13" 300W sub-woofer.
Each tower has three pairs of binding posts - ’Low,’ ’Medium’ and ’High.’
The ’Low’ / sub woofer also has the RCA input option.

Currently I use one set of speaker cables from the integrated amp to the ’Middle’ binding posts of each speaker. Then jumper cables from the ’Middle’ to the ’Low’ and ’High.’

Q1. Can the "Tape" RCA output connect directly to the sub-woofer RCA input?

Q2. If "Yes" to Q1, is this typically better sounding than the jumper cable set up?

Q3. Does bi-wiring or tri-wiring speakers sound better than all the above?

Thank you in advance for your thoughts! :-)