Hey everyone! Id be in need of help. Around a year ago, my Matrix M-Stage suddenly stopped outputting any sound. I tried changing opamps with no avail. Checked the cables, all fine, tried using it in different computers, but still nothing. Im not interested on sending it all way back to be...

I gotta say, the nfb 3.33 works suprsingly well with loudspeakers as well. Its amazing how much more detail I got out of everything when using it.

Might consider that as well, but right now, my amp seems to be broken, and sending it all the way back to taiwan to get fixed doesn't really interest. So unless I can fix it easily myself, might just aswell look for a second amp.

Hey all! Looking for some new amp recommendations!   Current setup: Beyerdynamic DT 900 Pro's Phones Matrix M-Stage AMP Audio GD NFB 3.33 DAC   Price should be around 200-300 usd.   Ive been looking into some tubeamps, but I don't know if they exceed regular amps on these price ranges...

Any help?

Tested both input, none worked.

Would anyone have any idea why nothing comes out of my Matrix M-Stage to my headphones? Its like it just died for some reason. Ive checked the cabels, no problems. I have set my music player to pass the music through my S/PDIF port, I have PCM enabled in the xonar dg panel, but nothing. It...

The bottom one for the capacitor? I think. Op amp is tight, even tried a different one. I have to try the amp somewhere else in the house and see if the problem persists

Guys, today when I woke up and put my matrix on again, there is a weird humming sound present. Tried tightening the screw, but I think I overscrewed. Didn't fix the humming nonetheless. Don't know what else to do to fix it. Ideas?

Quick question. I have my setup as follows: Xonar DG -> NFB-3.33 -> Matrix M-Stage -> DT-990 Pros. Should I have the audi channels set to 2 or 4 in the xonar panel? As there is some difference, but not sure what I should use.

I ordered the Muses01 from Amazon from cpm accessories as they were located in the states, thus I thought they would legit muses01. Turns out they shipped it from China, so I'm not sure how legit my one actually is. Then again, the legit ones are made in taiwan to my understanding, so who knows...

I'm personally enjoying my Muses 01 much more than the Class A biasing opa 627 mod. More detail, and I think the treble is more detailed and some songs dont sound like mashed potatoes anymore, bass is more controlled but gives more punch when needed and it is a bit more detailed too. Overall...

Got my Muses 01 yesterday. After I changed it and started listening to some songs, something happend. Something good. I like this more than the Class A biasing mod. I'm not sure how to express this yet, but I'm enjoying it quite much right now. I can't complain.

I suppose it is. I ordered the LM4562NA which is DUAL according the ebay listing.

To my understanding, if it's in dual, you only need one. Swapping opamps is very easy though.

Ordered mine from a seller called "nooelec" from ebay. They stated it's a legit one. I sure hope so. Also getting a Muses 01.   Edit: I ordered from that seller. Didn't notice you had posted a link lol.   I sure hope the Muses01 is atleast authentic if anything.

Quote: Also, I reckon that I need 2 pieces of the muses 01? If so, will the tam audio Class A biasing mod adapter work, or could the resistors damage the chips?

Has anyone used the Muses 01/02 opamp with M-Stage? Would be interesting to hear if eithere one is worth the try.

Hmm, weird. I just got my NFB-3.33. I have the Matrix M-Stage 2012/2010? version as an amp which has a built in DAC. Right now, I don't really hear any difference at all when comparing the built in DAC of M-Stage vs the NFB-3.33, not to my ears atleast. Maybe it just needs more time? I have it...

They wanted me to send my social security number so that they can send me invoice which with I can pay the custom fees. Already sent it twice to them, and still haven't received the invoice via email. I sent the first one last week as they asked, and another one today. They told that I would get...

Little question on DHL custom clearance. Right now, the tracking has a message as follows: "Awaiting authorization of/or advance duty payment from customer." Now, just to make sure, will they contact me if indeed I need to pay, or they just waiting for me to do something? It has been soon 2 days...

Getting mine next week :) Is it necessary to install the drivers if you use the DAC via optical connect to a soundcard? Id suppose its only necessary if using the USB cable.  

I'm going to order the NFB-3.33, but there is something that I don't quite understand when I got the quote for the price. "We will mark the value USD120  (exclude shipping cost)   on the invoice for customs, if you want declare different value please inform ." What does this exactly mean? I live...

Quote: Not sure if I understood this correctly. You still need the adapter if just buy a single LM4562NA or if you buy 2? Also, could you guys give the so called "Top three opamps" for M-Stage. I see that the 627 and LM4562 are the most used ones. Is there a third considerable option?

Same here!