WORLDS BEST CABLES4 Units - 8 Inch - Canare 4S11 – Audiophile Grade - 11AWG - HiFi Speaker Jumper Terminated with Gold Spade Connectors

These bi-wire jumpers are too fat for Polk series Monitor 40 loudspeakers terminals when using them with Banana plugs. The lugs cover the hole designed for the banana plug to be inserted. Same issue with Definitive Tech D series speakers. In fact any in- post banana plug connection will be hampered by the fat lug on the jumper.If you are plugging the banana plugs straight in from the tip end of the binding post then these will work perfectly. However, If tightening the connection from the inside of the binding post's plastic cover, you will have issues. The lugs will either fall out or the banana plug won't seat. Besides the above limitation, these are nice and thick jumper cables that have a secure lug connection.

did not fit properly on B&W terminals

It works very well and is of very high quality.

Absolutely superb quality…if these had any of the high-end brand names on them they’d be $800+

I was skeptical they would have any impact on sound quality but I was wrong. Most notable difference was to the highs. More “air” and cymbal crashes linger longer. Excellent upgrade.