I've had the same problem several times and have used a couple different ways to adapt things.Look at your speaker binding post,which sound like ther'e 5/16" with the hole verti
cal.Sometimes if you can loosen the post(from inside) simply turning them 90 deg.so that the hole is horizontal will expose the thinner section of the post shaft that your 1/4" spade will fit on.If getting inside your speakers is a hassle put some tape on a screwdriver that will fit in the post hole and try gently turning the shaft clockwise to reposition it.I'ts not likely that the post will be that tight since overtime most loosen somewhat and turning them in the tighten direction shouldn't hurt anything inside.Cardas makes the best spade to banana adapter and if all else fails send 'em back to Transparent for larger spades.
cal.Sometimes if you can loosen the post(from inside) simply turning them 90 deg.so that the hole is horizontal will expose the thinner section of the post shaft that your 1/4" spade will fit on.If getting inside your speakers is a hassle put some tape on a screwdriver that will fit in the post hole and try gently turning the shaft clockwise to reposition it.I'ts not likely that the post will be that tight since overtime most loosen somewhat and turning them in the tighten direction shouldn't hurt anything inside.Cardas makes the best spade to banana adapter and if all else fails send 'em back to Transparent for larger spades.