As an audiophile, I am very particular about the quality of sound reproduction.... all the way to Bose Surround Sound Home theatres..
"audiophile" and "Bose" don't belong in the same paragraph.
..Audio output from the headphone jack was full quality 24-bit stereo sound...
24-bit? Can you please provide some links to back this up?
From Apple iPad tech spec
Audio playback
Frequency response: 20Hz to 20,000Hz
Audio formats supported: HE-AAC (V1), AAC (16 to 320 Kbps), Protected AAC (from iTunes Store), MP3 (16 to 320 Kbps), MP3 VBR, Audible (formats 2, 3, and 4), Apple Lossless, AIFF, and WAV
User-configurable maximum volume limit