Apr 12, 2012 at 4:08 AM Post #2,791 of 5,176
Hey guys,
First off thanks for such a great thread, I am new to the world of cans and was very thankful to find lots of info on this forum and this thread. I to purchased the ebay version of this amp with the free HLLY t-amp and with all the op amp swapping going on, though I would share my own experiences so far.
 
I only received the amp and my cans (akg k-702) on Tuesday so please keep in mind nothing is burnt in. But that kind of the point and may help anyone considering this combo new. 
I am using the s/pdif out from a Auzen Meridian 2g soundcard, to a Rega DAC (only around 200hours use), to the headphone amp.
 
I am adoring the amp and phones. The matrix has more than enough power to drive them even with 0dB gain, but i am still deciding if i prefer or can tell a difference between 0 and 10dB. Thankfully i read this thread and was not tricked by the switch settings printed in the book :-), but I am yet to try the high gain settings.
 
The K-702's sound fantastic! I was scared from a few of the reviews around that they would be lacking in bass, but with this amp I cant see how you would want too much more. Even heavy d&b songs and dance music sound as they should. I mean, I don't think I am ever going to get that full body rumble you get from dedicated sub, but I don't feel I am missing much if anything through the phones and the sound stage is just that much sweeter. Can't wait until it all burns in!!!
 
Op amps - The meridian soundcard is also made for op amp rolling and when i was using it with logitech z-5500 speakers, i had a play. I honestly couldn't pick a difference between the stock, the 4562, or the 627 but convinced myself 4562 was best. These were very crappy speakers though...
 
So having the amps already.....  :-D
So if you happen to have these cans at their ear peircing new, with a Rega DAC, maybe best to stay clear of 4562 at least to start with. If you are desperate to play, try some others first. I can't find my 627 right now (click!!! might be still in the soundcard! lol). but 4562 was sooo soo fatiguing, even on low volume it was killer in the highs. Yes i do think it made the highs clearer and more prominent and possibly slightly extended the bass, my first thoughts after were wow!, but it quickly became uncomfortable listening. I gave it to my partner to try without even telling her about the change and she said it hurt her ears within about 20 seconds. 
 
I was not convinced of op amps changing much from the past experience, but this really was a drastic change in the sound. I guess it really depends on the equipment in the setup.
 
I am going to hold off for a few hundred hours of can/amp burn in before testing them some more, but thought i'd let you all know how I went with the initial setup. 
 
Cheers :-)
 
Apr 13, 2012 at 1:14 AM Post #2,792 of 5,176
I wouldn't normally bother, but the M stage IMO is one of the best budget amps for sale. The 4562 should be the end. FWIR, the m stage gets more refined with the opamp,  I've tube rolled some, but it's been hit and miss for me. I only have hybrids though.  As far as driving me nuts, it's too late. If the 4562 sounds better to me without biasing it, I'm done. 
 
 
 
 
 
te:
If it makes you feel any better,  I stopped rolling Op Amps after using the LM4562!
And I didn't even try Class A biasing it!
 
Tube rolling will drive you nuts.
tongue_smile.gif



 
 
Apr 13, 2012 at 3:35 AM Post #2,793 of 5,176


Quote:
I wouldn't normally bother, but the M stage IMO is one of the best budget amps for sale. The 4562 should be the end. FWIR, the m stage gets more refined with the opamp,  I've tube rolled some, but it's been hit and miss for me. I only have hybrids though.  As far as driving me nuts, it's too late. If the 4562 sounds better to me without biasing it, I'm done. 
 



You should try the LME49990.. 
rolleyes.gif

 
Apr 13, 2012 at 12:37 PM Post #2,794 of 5,176
LT1124ACN8 is another good one to try as well as the LT 1213 ACN8 both are dual channel. LT1128CN8 works good too but those are single channel op-amps. The LME4562 isnt the end all op-amp. Also their other op-amps that work good inside the matrix M-Stage. 2x LME49710NA worked good in it, as well the 2x OPA602BP that I Seen alot of people liking in the op-amp thread.
 
Apr 14, 2012 at 6:23 PM Post #2,795 of 5,176
[size=10pt]Hi there beginner question but im new to all of this and wondering would this item work if I plug the power cord into my computer bar, turn it on and plug headphones into it? I will be listening to my flac files. It wont be connected directly on my computer, just through the power bar.
Thank you
[/size]
 
Apr 14, 2012 at 9:35 PM Post #2,796 of 5,176


Quote:
[size=10pt]Hi there beginner question but im new to all of this and wondering would this item work if I plug the power cord into my computer bar, turn it on and plug headphones into it? I will be listening to my flac files. It wont be connected directly on my computer, just through the power bar.
Thank you
[/size]



What is a power bar/computer bar?
 
Apr 14, 2012 at 10:34 PM Post #2,797 of 5,176

 
Quote:
What is a power bar/computer bar?



A power strip with a surge protector... some have IEM filtering and power conditioning.
 
BlackDragon is basically asking if the music will go from his computer to his M-stage trough the power cords of the computer and the amplifier. The logic behind his question is there's technically an "electrical connection" between the computer and the amplifier since they are connected on the same power strip.
 
I'm still wondering if he's serious or if he's just trolling us though.
 
Apr 15, 2012 at 6:31 PM Post #2,798 of 5,176
Apr 16, 2012 at 2:44 AM Post #2,800 of 5,176


Quote:
[size=10pt]Hi there beginner question but im new to all of this and wondering would this item work if I plug the power cord into my computer bar, turn it on and plug headphones into it? I will be listening to my flac files. It wont be connected directly on my computer, just through the power bar.
Thank you
[/size]



   I really like your question. No you can't.
You have to connect this amplifier through usb to computer and of course to power bar...
 
Apr 16, 2012 at 9:42 AM Post #2,801 of 5,176
Hi how's the preamp out on the m-stage? Does anybody use this amp to drive a power amp->speakers? The double inputs and the variable gain makes this especially attractive imho. However I was wondering if the preamp outs are an afterthought or if they're as good as the headphone out.
 
Apr 16, 2012 at 3:37 PM Post #2,802 of 5,176
4562 stays, I've decided that the pangea usb cable is another favorite, which is only 20 dollars at several etailers. Ifind the 4562 to have a more refined treble, and a better soundstage with no loss of imaging. I don't hear a diiference in bass, but an even blacker background on an already quiet amp. I've ordered several more of the pangea usb cables since they trump far more expensive cables IMO, needs about 50 hours, at first ultra smooth, then slightly harsh, then settles in to a fantastic cable, for 20 dollars you owe it a try.I like my M stage better than ever.  Also ordering an HRT Streamer II for a friend with the M Stage, I was surprised at what a no frills usb/dac sounds like, lacking mostly detail compared to the Streamer II+, and I rank the Streamer II+ with anyrhing under 500, minus any extras or flexibility of course.
 
Apr 20, 2012 at 5:07 AM Post #2,803 of 5,176
Well its been a week and time to try 4562 again.
Today I am loving it. Maybe i was already fatigued the first time, or still getting used to cans, but i'm experiencing none of the 'ouch' I originally did with the 4562. I've left it all running most of the week and must be close to another 60hours of burn in. Hope it gets better again :-).
 
I am using the pre-amp to a monitor speaker setup with a Swan H10 sub and Swan T200b's. I wish I had the bits to A/B test because i'm not convinced either way on the pre-amp.
Makes volume control very convenient, but pretty sure I am loosing a bit of timing a width compared to straight from the Rega DAC, just sounds a bit messier, but that may all be in my imagination. Very interested to hear how others have found this little beast as a pre-amp too. 
 
Apr 20, 2012 at 6:09 AM Post #2,804 of 5,176
 
Quote:
 pretty sure I am loosing a bit of timing a width compared to straight from the Rega DAC, just sounds a bit messier, but that may all be in my imagination. Very interested to hear how others have found this little beast as a pre-amp too. 

 
Hi there thanks a lot for this valuable info. It's great you compared the preamp out of this to the Rega,  as I'm also interested in this DAC. If you have further updated impressions don't hesitate to let us know.
 
Apr 24, 2012 at 4:08 AM Post #2,805 of 5,176
My LCD-2 is coming in a few days, and i wanna know how does the M-stage (usb dac version) pair with the LCD-2 << i know it's not the best, but i mean for the price, is it the best out there in this price range <300$
i heard that the O2 amp is better than the M-stage in every way with LCD-2 just for 149$, is that true ?!
 

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