What is a Good Price For B&W 640?

[gonzonator]

I've been looking at a pair that is for sale, he is asking $500 is that a fair price?

[windshear]

I would think thats maybe a little expensive given the age of the speakers. Are they the 640i's or the older 640's ? I used to own a pair of the 640i's and twice had to replace bass drive units. Not through abuse, but the spiders tend to collapse with age and you end up with a scratchy driver, which will eventually self destruct. In my opinion i would stay away from these speakers unless you are 100% set on them and you have checked they dont have any collapsed spiders. The best way to test for this would be to run a sine wave test sweep, it will immidiately tell you if there is something wrong with a driver.

[gonzonator]

Yeah I thought it was a little high. They are the original 640's, I offered him $400 and he accepted so I picked them up this morning. I can tell you that so far I am very pleased, they sound great, maybe not enough bass for my taste, but nice clear mid range. I was also happy to see that they were in flawless condition, honestly they look brand new. I hope that I do not run into driver issues like you did. I have never done a sine wave test sweep, can you give me a little more info on how this is done?

[windshear]

Just do a search on the internet for test tones , there are many available and you can run them either from your pc or burn them to a disc and run them off your cd/dvd/bluray player.