Hi Denis,
the only site that has good sound samples that I know of is german based.
http://www.cd-soft.de/9000_Pro_Sounds/9000_pro_sounds.html Go to the bottom to see the samples or click on the left to e-mail them.
Most german companies are able to speak english.
Give it a try, they have new Cool! Sweet! and Live! samples too. I hear they are really good, including the B3 samples.
Good luck
Eric
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Genos, PSR-S970, TC Helicon VoiceLive3, Mackie 802-VLZ3 Mixer, 2 Bose L1 Pro16, Electro-Voice ZXA1 Subwoofer