While I cannot compare to the others mentioned, I own a ITT Schaub-Lorenz Touring International 103, and the sound is outstanding. It is a portable radio, but still worth a look. For a comprehensive review by (radio expert) Jay Allen, follow this link:
On FM the ITT really shines. Its audio is wide range, crisp and clean, with a solid bottom end that reveals the limitations of other radios one compares it with. I happen to be a big fan of the GE Superadios…primarily the I and II…they have great reception and sound, especially for the price, but the ITT’s sound is much more powerful and awe-inspiring…at higher volume levels there simply is no comparison. The ITT is my reference portable radio for sound quality.