Garrett Hongo has posted a review of the Zanden Audio Systems AT-1 acoustic tubes ($300 each) and AP-1 acoustic panels ($415 each) at SoundStage! Ultra. His conclusions:
“I bought and installed complete sets of AT-1 Acoustic Tubes and AP-1 Acoustic Panels. Never before have I enjoyed such a clean, clear, vibrant, holographic, and dimensional sound in my room.”
You can read the full review here.
