Hi apotek.
In his review of the Bozak Concert Grand, Peter Breuninger talks a little about his experience with the Symphonys. He also mentions a "Bozak expert," Pat Tobin, who can be reached at audio.consultant at verizon.net.

I hope this helps.

Suggested values for audio components can be found online in the Orion Guide. They are only suggested values as anything is worth what someone will pay for it - if you are selling it. If you want to know what they are worth compared to what you paid, they are worth what you paid until someone offers a different price. If you are not selling them, finding a value is of no use other than your ego. In that case, save yourself some time and figure you got a real bargain and they are worth much, much more than you paid. Place "Orion Guice" in a search engine and you will be led to the site.