Be careful - not all caves are Audiophile Quality!
People are selling a bunch of cheap junky caves (many from China) with LowFi sound.
Caves in granite are FAR superior to limestone. With granite, you can anchor those speakers AND your listening chair into ... well.. solid granite. No phase modulation distortion there!
Crummy soft limestone and sapstone will allow your speakers to move and smear the damn sound all over.
And sandstone is nearly as bad!
People are selling a bunch of cheap junky caves (many from China) with LowFi sound.
Caves in granite are FAR superior to limestone. With granite, you can anchor those speakers AND your listening chair into ... well.. solid granite. No phase modulation distortion there!
Crummy soft limestone and sapstone will allow your speakers to move and smear the damn sound all over.
And sandstone is nearly as bad!