Triode User
Member of the Trade: WAVE High Fidelity
I have repeated the procedure and can confirm, once and for all, that on my TT 2 when entering HP mode from DAC mode, the headphone output is significantly lower than when entering HP mode from AMP mode. Therefore, as someone new to Head-Fi who has looked at the user manual rather than actually owning one, you must be right; my unit is faulty.
Perhaps the best way for you to get conclusive advice would be to contact Chord Electronics direct. That way you will know for sure and will have it 'from the horses mouth'. Their telephone number is widely available by searching for 'chord electronics telephone number' or they have a contact form on their website.