Do you want an upgrade in the sound of your Van Alstine amplifier while increasing the safety of your speaker connections? Consider the WBT 0610 banana plugs in copper and silver. I added the copper version to my 600R and was really impresed. They replaced another set of WBT banana plugs (0630 I believe) and the gains in clarity, extension, and depth were very worthwhile. I have had a number of banana plugs on this amp ranging from Kle inovations, pure copper from Viborg, and the earlier WBT. The WBT installs easily and I love the way it handles cables, which are directed down towards the floor. These are my observations, but it is one to consider as an upgrade. All banana plugs do not sound the same. I liked the set I bought so much I bought another set for my SET 400 which is my subwoofer amp. Enjoy!