Koetshu Black has excellent midrange, but not much extension on both ends. If you have an all-tube system, the midrange might get overly pronounced combining with Koetsu Black.
Just some thoughts based on my limitd experience with Koetsu blacks (Have several friends compared their Koetsu Blacks to my Shelter 901)
FrankC
Just some thoughts based on my limitd experience with Koetsu blacks (Have several friends compared their Koetsu Blacks to my Shelter 901)
FrankC