I have EF1 only to use it with HD600. It makes me very happy with some music types but not all. I feel a larger size amp may be better to provide enough power and dynamic I want sometimes, but it depends on your budget (I feel you will need to invest quite a lot more than the cost of EF1 and...

Thank you, K_19 and Wenglish, for your inputs. So would Supreme be a better choice in order to get more dynamics from ef1? Would that be counted as double amp?

I have no complaint with EF1 for giving enough clarity, 3D effect and instrument seperation, but I feel EF1 lacks in power output or dynamic. Do you feel with a decent DAC like the straight ef1 improves in these aspects? Quote: Originally Posted by K_19 NP. I now feel that the DAC...

K_19, thanks for sharing your impression with the DAC straight!

Make sure to share your impression. I may go with the DAC straight as well, if it is a positive experience to you. Quote: Originally Posted by K_19 Thanks. I purchased the DAC Straight earlier today... hopefully it will get here pretty quickly since I'm within Canada. Looking...

It seems Fubar II also uses PCM2702. How will STRAIGHT compare to Fubar? They also cost about same. Quote: Originally Posted by CTechKid IMO the DAC STRAIGHT is HOTAUDIO's best DAC, assuming of course you're feeding it into an amp. He's setup it up so the PCM2702 is totally raw in...

I am also thinking about the same thing, to feed EF1 with hotaudio and then to HD600. In addition to how much it will improve over what i am using now (m-audio transit), i am also debating between different modes, straight or bitperfect or destroyer. In general i like a warmer sound, that is...

I am glad that I made to the meeting (leaving my wife shopping alone happily). It was my first meeting experience, and I enjoyed it. Thanks everyone for planning the meeting and hosting me, an unnoticed last-minute attendent. First time I got chances to listen to headphones other than Senns...

I am looking for a USB DAC as an upgrade from my M-Audio Transit to use with EF1 amp and HD600. I was thinking of emu 0404, but after I saw how big it is I give it up. How about emu 0202 or Fubar II? I would appreciate if anyone could comment if these two are truely an upgrade from Transit or...

Greeting from the first-time, last-minute and unnoticed attendent It was a pleasure to meet everyone there, and a nice listening experience. Found myself love K701 a lot, but it is just uncomfortable...

I think I am done here, after my Mullard arrived today. That is the sound I am looking for, close, clear, and musical. Not only vocals are great now but even symphony sounds more dynamic. No more doubt, right tube is the key. Quote: Originally Posted by UTF Btw, the Amperex i got...

Thanks, olblueyez! Btw, the Amperex i got sounds clear but distant. Is any tube giving a closer and clear sound? Also, for symphony, Amperex sounds not powerful and dynamic enough. Any other recommendations? Thanks all!

Yesterday I was still wondering if the burn-in made any difference. Tonight, I happened to try a Sarah Brightman CD and the difference turns out to be "huge". With the amp, the highs are extended to a completely new level. Without the amp, it just doesn't sound right. Then I say let me try...

Thanks! Quote: Originally Posted by somestranger26 It's definitely not a long plate. (There's other types besides "short" and "long" plate so I wouldn't know for sure) For long plates you're looking for a "K61" in the date code or, assuming the auctioneer is being honest, a 1950's...

I was in the same position when I tried my first amp (EF1) recently. For the first time I listened to it and compared it with the headphone output of my Marantz CD5001 player, the difference was small (even subtle on some music). I have also done some burn-in and hope that will improve the...

Can you tell is this long plate or short plate? (1) Mullard 12AU7 ECC82 Tube, Blackburn England - eBay (item 250378710259 end time Feb-23-09 17:48:05 PST) And what is the difference between 12Au7A and 12AU7?

I have done about 40 hours burn-in on the amp, but not felt there is a significant change of the sound. To my ears, the amped sound is only a subtle improvement over unamped from the HP output of my Marantz CD player. Basically, the amp brings out more bass (but not punchy) and a kind of smooth...

My EF1 was shipped from Shanghai and arrived earlier this week. Overall, it took a week to receive it since I placed the order.

Thanks! OK, let me take time to break in both amp and headphone (also new). Quote: Originally Posted by HeadphoneAddict Yes, you do, or no current passes through the paths you are burning-in.

Assume that I don't need to plug in the headphone for the break-in, stupid question again. Quote: Originally Posted by HeadphoneAddict Give the amp 150 hours of break-in (burn-in) with music playing from the time you get home in the afternoon until you leave for work or school in...

Another thing I like it is making my APE collections sound sweet from computer, using with a Transit USB.

The EF1 finally came in today, and I cannot wait to try it. Using a Marantz CD5001 as the souce and CON branded Sylvania tube, the first thing I noticed is that now I get a lot of bass, tight bass (when comparing to listening from the headphone output of the CD player, which is quite good but...

Just recalled olbueyez told me the RCA cleartop will make the tube amp sound exactly like solid state, and there are also more people saying HD6x0 sound better with tube amp than solid state. So you might try differnt amps if we can get it there, which i hope. Quote: Originally...

What you and parra said here make me wonder if I made a wise purchase of EF1 for using with HD600 (my EF1 is still on its way to me). Is what its missing to sound right there related to its power, synergy, or something else? Would tube rolling help? Just cannot wait to try HD600 on it...

Thanks again, olblueyes! Just saw the chart you quoted from tubeworld, Amperex 7316 and Mullard are listed in the same category for warm/rich/smooth, just wonder why you say "they compliment each other" . btw, how about that used Mullard on ebay?