Got my Magni in today. Here's some very early impressions after a few hours:
I noticed when I plugged it into a huge surge protector it sounded considerably worse. I removed that and connected it straight to the wall.
I guess some surge protectors with a ton of noise filtering hurt the sound slightly. This one is from APC.
I'm also using it with the ODAC.
I'll do updates when I try more headphones.
Koss Pro DJ100.
Nice and full sounding. Everything sounds like it should. Everything seems quite well balanced with nothing sticking out too much.
It hasn't made it any bassier, warmer or more treble happy. Actually I DID notice the treble being a bit more "there" than it always has been, but not like in a bad way.
I did notice in one track, this subtle low bass isn't very present as it is out of my Sansa Clip+ or Headroom Micro Amp+ODAC (both should measure ruler flat).
I doubt the Magni has rolled off low bass, but it's possible right? For $99, I don't care much. The E9 does slightly too.
Soundstage was OK. Not as large as that of the E9 or Micro Amp based on memory. I always felt the E9 seemed to magically make the soundstage of my headphones bigger than they should be. Probably impossible right? BTW it doesn't sound as crystal clear as it does with the Micro Amp and E9. I would say it's probably better sounding with the E9. I don't mean more "musical". This sounds a bit flatter though..at least with the DJ100.
Q701 (should skip this part, hardly fair since the amp is new out of the box)
Yuck! I can't say I believe or don't believe in amp burn in, but i'll amuse myself and do it anyway. I'll say that right now this is the thinnest i've ever heard the Q701. Some random spikes of something to my ears. At the moment it sounds more like my Koss A/250 or AD700. Warm recordings are considerably less warm sounding than they should ok (on the Q701). I'll burn it in some more. I mean the Magni has plenty of power, so that can't be it. At the moment the Q701 sounds way better from the E9 and Headroom Micro (both measure fairly flat). I think the E9 has some bass and treble roll off slightly.
FYI I've owned the Q701 for a year or more and this is not how it sounds on any amp. I'm a bit weirded out by this, so we'll see how it goes. The Q701 gets more than enough volume. I'll try my K601 and see how the Magni likes that. I hope the O2 doesn't sound like this with the Q701.
Basically this sound like an underpowered Q701, but this is IMPOSSIBLE. I know the Magni has tons of power. I should point out that I didn't buy the Magni for this headphone, but for the DJ100 and HD-650 only.
EDIT: After about 8-12 hours of use, the Q701 is sounding a bit better. The Magni doesn't add any more warmth to the Q701 that I can tell and that's a good thing for me. The Q701 doesn't need this IMO. I'll give it a another week to see if I can suggest it for the Q701, but I'm surprised at how much better it sounds. I did notice it's soundstage is a lot larger! Some distant background details are a bit harder to hear, but no fault of the amp.
HD-650
So far so good. Can't notice any dramatic changes. Perhaps a little more treble. This HD-650 is weird because with my setup it's not VERY forgiving and quite revealing of each track. Sometimes when switching tracks it can sound like a totally different headphone depending on the recording quality.
BTW..short update, but after an hour of listening to the Magni+ODAC with the HD-650, i'm pretty impressed.
EDIT: The Magni+ODAC sounds so crystal clear with the HD-650. I wonder if the O2 is even clearer and just as neutral sounding? The Magni doesn't seem warm at all to me, which is a huge plus.
I would say that buying the Magni for the HD-650 alone would have been worth the $99.
I should try it with the 600 ohm Sextett and K601
. K601 is the toughest headphone I have to drive (IMO).
Magni seems pretty revealing so far for being only $99. I guess the ODAC helps too.
AKG K240 Sextett (600 ohm)
Sounds great! Best i've heard it so far. Not even kidding. It does feel like it got a little more treble and increased sound clarity. Is it my imagination? Maybe...or not.
Edited by tdockweiler - 1/1/13 at 10:19am