Hello there, everyone!
Recently i bought AKG K240 Studio for mixing purposes etc.
I don't have proper amplifier yet. I have two audio interfaces: M-Audio M-Track (USB) and Infrasonic Deux (FireWire).
Seems like M-Audio's headphone preamp is a total shit, cause when it comes to a deep bass (>40 Hz i presume) my K240's begin to distort and i must turn my volume knob almost at full to get more then average loudness level. Not much of distortion, but still, it is impossible to mix with that.
I tried my Infrasonic - and i have much more volume "headroom" and don't get that distortion (but sometimes i do, but it is not a problem for mixing anymore).
Seems like Infrasonic's preamp a little bit better. But Infrasonic is more laggy in terms of latency.
So, i can't find headphones preamp specificaitions for any of these interfaces.
That's why i want to purchase HP amplifier. I would like to connect a preamp to M-Audio and then my headphones to preamp.
What Output Power is minimum for my K240's? By minimum i mean the minimum when i will not get any distortion and will have a decent amount of volume "headroom".
I was looking at Schiit Magni 2's specs:
Maximum Power, 16 ohms: 1.8W RMS per channel
Maximum Power, 32 ohms: 1.2W RMS per channel
Maximum Power, 50 ohms: 1.0W RMS per channel
Maximum Power, 300 ohms: 260mW RMS per channel
Maximum Power, 600 ohms: 130mW RMS per channel
Do you think i need that much for K240?
But i think that Magni 2 is a bit expensive for me. I would like to get an amp for 60-80$.
So, what's my preferrable Output Power? )))
Or maybe you can just name a few of preamps i should look for?
Thanks in advance!