Hi, hope you can help, I'm new to Headphone amps & just have got an AKG K612 pro, I am just running it through my Yamaha rxv475 AV Reviever atm.
Would the Aune T1 MK2 6922 be suitable for my setup, as a Headphone amp for running through the reciever & also through a laptop should i choose. Or is something else a better prospect, eg:
http://epiphany-acoustics.co.uk/products-page/headphone-amplifiers/ehp-o2-portable-headphone-amplifier/
Well, those are two different animals... The T1 has a tube-buffered DAC + headphone amp + RCA output, whereas the o2 you linked is a portable headphone amp.
The T1 needs to be plugged into a wall socket, so it would work best on a desk, or with your existing receiver... the o2 portable headphone amp runs off batteries and (I suspect) wouldn't really "improve" the quality of your music, as the premise of the o2 amp is to simply amplify whatever is coming in, without colouring or adding distortion. It might improve it a bit, but it will depend on the source.
Unless you plan on using the o2 portable with an iphone or some other portable media player, you'd probably get better use from the T1. Your laptop could play to the o2 portable, but you'd probably be looking to upgrade from your laptop's built in soundcard to a DAC eventually... (it may sound really good, but I'm not sure that you'd notice much of a difference simply using the o2 amp instead of your soundcard, or iphone).
Having said that, how do you find the AKGs? I have never heard the K612 Pro's before, but the K702's that I owned were very revealing... a bad source would sound bad. They also had fairly intense highs for my ears, which I found some tubes in the T1 could tame a bit. Are you pleased with the sound from your laptop->receiver->AKG's right now? Looking for any change in particular to the sound signature?
I think they'd benefit from a good DAC, which you could use with your laptop and receiver. Not sure if tubes are the way to go... have you given any a listen before?