I think the WBT-0645 will work,
https://www.musicdirect.com/connector-upgrades/wbt-0645-safety-banana
https://www.vhaudio.com/wbt-0645.pdf
Or using two stackable banana plug for each 10 awg wire,
https://www.parts-express.com/angled-locking-stacking-banana-plug-with-dual-set-screws-poly-shell-an...
If using existing spade, a spade to banana adapter will work too,
http://cardas.com/cab.php
https://www.musicdirect.com/connector-upgrades/wbt-0645-safety-banana
https://www.vhaudio.com/wbt-0645.pdf
Or using two stackable banana plug for each 10 awg wire,
https://www.parts-express.com/angled-locking-stacking-banana-plug-with-dual-set-screws-poly-shell-an...
If using existing spade, a spade to banana adapter will work too,
http://cardas.com/cab.php