04-29-12: Podeschi
Headline looks cool - never heard it before. I imagine Naims pace and punch would be a good match. It's specs show it should easily drive 600 ohm T1s. Nice thing about Beyerdynamic A1 head amp is I bet they voiced te T1s with it, it has two inputs and an output.
Headline specs:
Suitable for headphones
8 Ohms to 2 KOhms
Frequency response
-3dB @ 10Hz & 72kHz
Power output (into 8 Ohms)
560mW per channel
Max output voltage
3.7V rms into 2kOhms
Voltage gain
+13.5dB
Dimensions (H x W x D):
57 x 121 x 187mm
Noting that this headphone amp outputs 0.56W/ch into 8 Ohms, I do not see how this amp can effectively power a 600 Ohms headphone. It will run out of voltage swing very quickly as the power supply rails are not large enough in terms of voltage.
I also note that it outputs 3.7Vrms into 2KOhms. So, if you had a 600 Ohms headphone your max line output voltage would be linearly scaled 600Ohms/2Kohms * 3.7Vrms = 1.11Vrms. Maybe 1.11Vrms is enough to drive a 600 Ohms headphone? Maybe not.....
OTOH I see that there are a multitude of power supplies available for this headphone amp such as NAPSC, FlatCap XS, HiCap, SuperCap. If you got the "correct" NAIM power supply to match up with the "correct" headphone then I could see how this amp could be "Suitable for headphones 8Ω to 2KΩ".
I think that there is something hidden/not obvious re. this headphone amp in that, I feel, that one cannot take any headphone & any powersupply & be successful. It might cost you a bomb (the power supplies are EXPENSIVE!!) to successfully drive a 600 Ohms headphone.
If I were you I would not take the "Suitable for headphones 8Ω to 2KΩ." at face value.....
IMHO. FWIW.