Originally Posted by Spiral Out
|THD 1 Khz 150 Ohms
|IMD CCIF 15 Ohms
|Noise (ref 400 mV)
|Max Output (33 Ohms)
|Max Output (150 Ohms)
|Max Output (600 Ohms)
|Crosstalk (15 ohms)
|Channel Balance (50% volume)
|Battery Run Time
Maximum Power, 32 ohms: 650mW RMS per channel
Maximum Power, 50 ohms: 550mW RMS per channel
Maximum Power, 300 ohms: 220mW RMS per channel
Maximum Power, 600 ohms: 115mW RMS per channel
THD: <0.4%, 20Hz-20KHz, at 1V RMS
IMD: <0.45%, CCIR
SNR: >93db, unweighted, referenced to 1V RMS
Output Impedance: 6.5 ohms
The amps look very similar as far as power output goes. I don't think the Vali would work as well with low impedance phones as the o2, but with higher impendence cans the Vali is a little more powerful.
I found this the opposite.
My AKG 612s have been proving harder to power than I initially thought. I tried them with a Schiit Vali and it strained to give them high volume and more importantly any punch. Where as the Objective 2 with it's +gain button manages to feed them the juice they require and put authority behind it. Having said that, I am aware that the Vali offers 4 gain as standard, in contrast to the O2's 2.5 and 6.5 (low/high respectively). Yet the difference between the Vali's 4 and the O2's 6.5 is very noticeable. I would think this is down to the ohms impedence on the O2 being lower than the Vali. Meanwhile the RMS at 600 ohms is apparently higher on the Vali than the O2.
I don't understand then why it's more quite - other than the less gain.