REVIEW: Head-direct.com HiFiMan EF2 tube Hybrid Amp with USB DAC
Oct 10, 2009 at 10:38 PM Post #436 of 1,326
has anyone compared the ef2 with the little dot mk2 yet? And even better... Little dot mk2 using mullard ef92 drivers and russian power tubes like the 6n6p. I seriously doubt anything can touch the ld mk2 at this price range. It totally slaughters all my past (more expensive) amps except maybe the MicroZotl. Its too long ago for me to remember exactly how that sounded.
 
Oct 11, 2009 at 12:35 AM Post #437 of 1,326
Quote:

Originally Posted by boomy3555 /img/forum/go_quote.gif
Crazy Carl... Stock Tubes?


Yes, of course!
 
Oct 11, 2009 at 3:09 AM Post #438 of 1,326
Would a Little dot MK III or EF2 produce better results with a HD 600 and keces 151 dac as a source?
Was also wondering if these amps automatically bias the tubes.
Thanks
 
Oct 17, 2009 at 8:08 PM Post #440 of 1,326
Well, how about it? Keep it up, keep it up!

I'm expecting my EF2 within the week. Can it improve the SR60? It's so efficeient!

And do you think they ship on Sundays in China?
 
Oct 17, 2009 at 10:33 PM Post #441 of 1,326
Quote:

Originally Posted by ChiComm4 /img/forum/go_quote.gif
Well, how about it? Keep it up, keep it up!

I'm expecting my EF2 within the week. Can it improve the SR60? It's so efficeient!

And do you think they ship on Sundays in China?



SR60 will improve with the EF2
 
Oct 17, 2009 at 10:58 PM Post #443 of 1,326
Quote:

Originally Posted by migs008 /img/forum/go_quote.gif
If I bought this 210$ amp/DAC for an HD650 would I be happy?
confused_face(1).gif



You wont be sad. The EF1 will definitely be more powerful than the EF2 for the 300 ohm headphones, but the EF2 still beats almost all the portable amps (except maybe the 3MOVE) with the HD600/650. A DarkVoice 336i is a normal tube amp that sounds good with high impedance HD600/650 but not as good as the EF1/EF2 with everything else. I like the EF1/EF2 with HD600 a little more than when using a Grahm Slee NOVO, but the HD650 might be a good match with that too.

In the end, the other amps I mentioned are all $299 - $375, and the EF2 are a great $189 amp for Sennheisers.
 
Oct 17, 2009 at 11:26 PM Post #445 of 1,326
Quote:

Originally Posted by HeadphoneAddict /img/forum/go_quote.gif
SR60 will improve with the HF2


Haha, Freudian slip. Thanks, HPA. Your review and feedback have been very helpful.
 
Oct 18, 2009 at 3:16 AM Post #446 of 1,326
Quote:

Originally Posted by ChiComm4 /img/forum/go_quote.gif
Haha, Freudian slip. Thanks, HPA. Your review and feedback have been very helpful.


Yeah, HF2 will improve the SR60 doesn't make much sense...
 
Oct 18, 2009 at 11:52 AM Post #447 of 1,326
What about upgrading/changing the DAC chip?

Or, any of the caps, etc.? I know it sounds good the way it is, but I am also curious about tinkering.

Please don't tell me that I should just enjoy it, I do. But, we do have a great deal of tinkerers and and people here that can't leave well enough alone, lol! So, I am trying to tap into that pool of knowledge.

Please feel free to chime in and give opinions, options, experiences.
bigsmile_face.gif


Thanks, and any help is appreciated,
Matt
 
Oct 18, 2009 at 3:11 PM Post #448 of 1,326
Quote:

Originally Posted by hedmaster /img/forum/go_quote.gif
What about upgrading/changing the DAC chip?

Or, any of the caps, etc.? I know it sounds good the way it is, but I am also curious about tinkering.

Please don't tell me that I should just enjoy it, I do. But, we do have a great deal of tinkerers and and people here that can't leave well enough alone, lol! So, I am trying to tap into that pool of knowledge.

Please feel free to chime in and give opinions, options, experiences.
bigsmile_face.gif


Thanks, and any help is appreciated,
Matt



You can upgrade the DAC chip with a simple plug in mod - plug a $120 SuperPro DAC707 into the RCA jacks.
tongue.gif
 
Oct 19, 2009 at 2:28 PM Post #449 of 1,326
Headphone Addict,

Thanks for the tip. I am also interested in finding out if I can tweak it in the amp dept. because I also use it with my Keces 131 MKII DAC.
Any tips, or thoughts, even experiences?

Thanks again,
Matt
 
Oct 19, 2009 at 4:23 PM Post #450 of 1,326
Quote:

Originally Posted by hedmaster /img/forum/go_quote.gif
Headphone Addict,

Thanks for the tip. I am also interested in finding out if I can tweak it in the amp dept. because I also use it with my Keces 131 MKII DAC.
Any tips, or thoughts, even experiences?

Thanks again,
Matt



Sorry, no idea.
 

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