I have several times. I know this has been awhile ago. But maybe you still have it to try. I have like i stated a few times just for the heck of it. No issues but I preferred the sound of my the tubes I am still running now. 6V6G National Union brand.

Look up. I use one on my MP-301 1. It has a headphone jack in the back which is very unhandy. Also it only has 1pair of speaker outs. This Russound works very well. Should be able to find on ebay. This way you can still use speakers if you want to. TBL-75 Table Top Volume Control

I do not know anyone that has. I do not have the know how myself. I have had my rig for over a year and I totally enjoy it. The only thing I have done is tube roll. But I too would like to know what issues or ideas on upgrades.I did try some tall 807's and I thought they sounded pretty good. But...

I own several headphones. I bought a pair of UR-10 for my granddaughter. These are made by KOSS. For the heck of it I plugged them in to check out. Wish I hadn't. The sound is terrible,feel uncomfortable and yes I knew they were cheap. But still The sound was not even somewhat clear. Way to much...

You might want to look at the Little Dot headphone amps. The do seem to have a good bit of following. And tube rolling discussions galore.  I have heard the MKII is pretty good. But to be honest I do not own any of them. All my headphone amps are made by Musical Paradise out of Canada. That was...

As far as your headgear that is personal.  I am more into Sennheiser's. For the amp I suggest the MP-302 since it is an excellent amp/dac for your computer. It also has worldwide voltage settings so you would not have to worry. And it sounds good with speakers or with headphones. And the price...

My son has this amp and uses it a lot. But I would recommend  getting a speaker headphone tap from RUSSOUND.  I use this tap for several of my amps. At times this even sounds better than headphone outs. Especially when when headphone tap was set up for sub. You can make your own tap but I do...

I also own the HD598 and as for being balanced I agree. Sound is good but I find they are bass shy. I have a much older model, HD570 that for me have a much fuller sound.sound. The HD570 never did get good reviews as far as I know. The HD598 are comfortable and I do enjoy them. I have tried...

Garry Huang who designs these amps, mentioned in a correspondence to me that Skylab will be reviewing this amp also. I own three of his amps and I am looking forward to this review by Skylab.

I went with the Jv5 amp-DAC from ALO. How has the MP-302 doing as far as sound. There still is not any reviews on this rig. Could you enlighten. I was still thinking about getting.

Get a Russound TBL-75 tabletop volume control. This has a headphone jack in front. This unit connects to speaker outs. It does not seem to color the sound to me. Works great for tapping for a headphone jack when do not have one.

Okay everyone I looked over Garry's blog on his website and over a month ago he made this statement. "Latest update: Some users reported that the background hum is very noticeable when using low impedance headphones (<=32 ohm) such as Grado. If you are going to use low impedance headphones with...

  Thought I would bring up that I tried the 6SJ7GT. I do not think they were NOS because they were very quite. They looked really old and the paper box fell apart in my hand. I have tried quite a few different power tubes and I tried one that was quite different. It was by REFLECTOR, a...

Boy do I feel stupid. Thanks for answeing   Quote:  

Just hit source and type when done hit preview and it all comes together so nice.Anyway it works for me. And I have firefox 4.0.t;  

Quote: I am new at this posting thing. Stupid? What does SQ mean.  

Yes I have. And the pair sounded real smooth.I did like the sound they helped to add.I am not sure that is the right way to say it. They we're worth what I paid for them.They were same brand but not matched. I tried the 6SK7's cans for awhile but I did not leave in long enough to burn-in. Right...

The dimension of the amp itself is about 17cm w x 30cm deep and 25c high.

My HD570s sound real good. My HD595 and ATH-M50s do not sound as good. The last two are low ohm sets. I do think higher ohm set will far much better.   Quote:  

... I have 2 6SD7 brand name PHILCO. I have also got 2 6SK7 tubes brand name KEN-RAD.The 6SK7 are JAN tubes accepted in 1943.They are also metal cans I haven't tried them yet.I am really curios if they make a difference.

Quote:  

This what Garry says of the 6J8p tube-- The little hum is mainly coming from the brand new 6J8P. It could become smaller after 200 hours. It is more noticeable on <32ohm headphones. It is hardly noticeable on 60-300ohm headphones. If you really care about the little hum, you can get a pair...

I received mine today. Doing a 24hr bun-in right now. Sure looks  good. Tubes sure make the new paint smell. Hope the smell goes away soon. Already ordered other tubes to swap.Will get back to give my impressions of Garry's latest.

Congrats. Let us all know how it looks and sounds when you get.