Nope - speakers really do break in. It is somewhat dependent on the construction of the drivers, but the surrounds/cone do bed in over time. It was very noticeable with the Fostex's - they needed at least 100hrs before they were listenable.
A quick way to bed them in was to wire them out of phase,pointed at each other and playing pink noise.
So wire one backwards then play into each other, loosen them up?
I guess mechanically it makes sense that the rubber suspended rim can change a little, but these are used speakers that a guy used in the rear of a surround setup so figure they've seen at least some use.
yup - although if, as you say, they are used then they might just not be great :P
My general advice is to either DIY some or buy some decent vintage speakers - there has been very little technological improvement in speaker technology in the past 60 years.
Nope - speakers really do break in. It is somewhat dependent on the construction of the drivers, but the surrounds/cone do bed in over time. It was very noticeable with the Fostex's - they needed at least 100hrs before they were listenable.
A quick way to bed them in was to wire them out of phase,pointed at each other and playing pink noise.