Single-wire spades from amp to biwire spkr posts?

Is there good biwired speaker cable with a single set of spades at the amp-end and two sets of spades at the speaker-end?

My (stereo) amp has just one set of terminals
and I am getting biwireable speakers, and I was worried that
a regular biwire cable would force me to have two sets of spades on each amp terminal, and thought that would be unstable.

Thanks.