The EBCs are an interesting line for Bosphorus....not your typical jazzy type cymbals. I cheated and grabbed these from Bosphorus' own descriptions. with a little added commentary..
21” Glassy Ride : Rich with overtones. Very sensitive medium/thin ride with normal cup size. Lathed and also hammered on the edge of the top side. Zebra kind of lathed on the backside. Long resonance time, a little bit glassy sound because of the shape of the cymbal. Ideal for using on left side, as an effect ride in faster tempos. Full with mid-high frequencies.
I have said before that the Glassy ride is aptly named...it describes how it sounds. It is also has an extremely consistent "white noise" wash under it's glassy stick...which may be why they recommend them for "trendy" or "techno" type music.
19” Full Crash : Very clear, bright sound, full with overtones. Not hammered only lathed and polished surface on both of the sides with normal cup. More high and mid low frequency and less mid frequency. A typical universal crash mostly for the right side.
This is a good description...it is a really good universal crash and I've mixed it with plenty of other lines.
The Gold Hats are, I think, also best described as universal. Brighter, good solid weights, and can be used for anything....even mixed with darker cymbals. Nice crisp sounding chick. Excellent definition.
Someone should give this a try. I’ve got one of these (along with an 18” EBC Series Sibilant Crash). Very cool cymbal. Very different from your standard Bosphorus sound palette, as you mention. I’ve personally found that I might like Bosphorus best when they’re getting experimental — the Oracle Series, the Lyric Series, the Syncopation SWs... This would be in there, too.