Bombaywalla, you raise a good concern about voltage swing capability, considering the 600 ohm impedance of the T1's, but I don't think that your analysis is quite right. Consider that 0.56W into 8 ohms corresponds to about 2.1 volts. Surely the amp will be able to put more voltage into 600 ohms than into 8 ohms.
Within the limits of the amp's current capability, its output voltage capability will scale down as load impedance decreases based on the relation between the load impedance and its output impedance. It can be calculated from the two sets of figures (3.7V into 2K, and 560mW into 8 ohms) that the output impedance is about 6 ohms. That is essentially negligible with respect to 600 ohms, so the voltage capability into 600 ohms will be close to 3.7V. That corresponds to about 23 mW.
The specs for the T1 shown here indicate a sensitivity of 102 db/mW (which is typical of many headphones). 23 mW will therefore drive the phones to an SPL of almost 116 db.
For most listeners that would seem likely to provide enough margin so that non-linearities (and consequent sonic degradation) that may occur as the amp's voltage swing limits are approached will not come into play. But if material having very wide dynamic range will be listened to, such as well engineered minimally compressed classical symphonic music, which IME may for some works reach peaks of about 105 db, I would be hesitant to go with that combination.
Best regards,
-- Al
Within the limits of the amp's current capability, its output voltage capability will scale down as load impedance decreases based on the relation between the load impedance and its output impedance. It can be calculated from the two sets of figures (3.7V into 2K, and 560mW into 8 ohms) that the output impedance is about 6 ohms. That is essentially negligible with respect to 600 ohms, so the voltage capability into 600 ohms will be close to 3.7V. That corresponds to about 23 mW.
The specs for the T1 shown here indicate a sensitivity of 102 db/mW (which is typical of many headphones). 23 mW will therefore drive the phones to an SPL of almost 116 db.
For most listeners that would seem likely to provide enough margin so that non-linearities (and consequent sonic degradation) that may occur as the amp's voltage swing limits are approached will not come into play. But if material having very wide dynamic range will be listened to, such as well engineered minimally compressed classical symphonic music, which IME may for some works reach peaks of about 105 db, I would be hesitant to go with that combination.
Best regards,
-- Al