cd's/SACDS to test highs?

Into The Labyrinth-MoFi SACD Dead Can Dance.
The first cut will test your highs nicely. It will test your lows as well! Great album with outstanding female and male vocals.

Regards,

Thanks everyone ! Really appreciate all the great recs.
I love Dead can dance. I have most of their CDs .
I do like jazz,blue grass,folk,alt country,rock
Would female opera singers be a good test as well?

whether female opera would do what you want. One good recommendation would be Joan Sutherland available on arkivmusic.com as Classic Recitals-Joan Sutherland Opera Arias. It goes back to 1959. The flexibility of the voice is amazing, have not heard anyone else who came near. She never sounded that good by the mid 60's. Highly recommended.

Keith Jarrett's "Death And The Flower" is now on SHM SACD, and is a lot of fun in the highs.

I've never heard close-miked opera, so the highs are generally somewhat muted compared to more modern stuff. Of course, it's a more realistic portrayal of what one would hear from the audience, but I don't think that's what you're looking for at this point.