Room Acoustics question:

Adam, The 20x30 is close to the Cardas ratio that really works. 1.6 is a turn key winner every time. Pay attention to how normal conversation sounds; is it comfortable to have an extended conversation? These dims should respond to proper setup without having to resort to the ugly stuff. In a perfect world, your speakers are a third of the way in and your chair is at two thirds.

Adam

No, bass will be very good after a few room treatments. I'd start with the corners, and rear wall.

I was just stating that large, deep, wide rooms...are a dipole speaker owners dream. They offer everything that, that breed of speaker needs to really excel.

Dave

Does the Cardas website discuss the origin of 'there' ratio?
Hint: the Cardas logo...a nautilus shell, is the clue.

I considerate it excellent. Provides great space to work with.

For anyone with a fascination for numbers and curiosity about what George Cardas and others are promoting.

Read "The Golden Ratio, The story of PHI, the world's most astonishing number" by Mario Livio, Broadway Books, C 2002 (available in paperback).

This book covers the golden ratio from when it was defined by Euclid, through 2000 years of historical understanding. This ratio appears widely in nature and and has been reported used in architecture, painting, analyzing the stock market, and now the design of speaker cables and optimal listening rooms. Many examples and pictures of PHI in action.

1.61803... is a remarkable and mysterious number.