[mrarroyo]

MikeW, when you get the tubes clean the pins well. By removing the dirt/oxidation they will make better contact w/ the socket in the EF1. Good luck and I hope you like them.

 

[MikeW]

yeah i got some dexoit from radio shack

 

[KevM2]

HiFlight's kit works excellently with this amp. Very realistic sound.

 

[HeadphoneAddict]

Quote:

Originally Posted by MikeW /img/forum/go_quote.gif yeah i got some dexoit from radio shack

Or rub the pins with a pencil eraser.

 

[MD1032]

Or, use Q-tips dipped in isopropyl alcohol (make sure you don't leave behind any cotton fiber hunks).

 

[GTL]

Has anyone tried the EF-1 with the ESW10 and the E9s? Also I know this is a rather unfair comparison but how does it stack up against the yamamto HA-02?

 

[FrederikS|TPU]

Quote:

Originally Posted by gevorg /img/forum/go_quote.gif Does tube rolling (or upgrading the stock tube) make a significant differences for EF-1? As a point of reference, cables make very insignificant difference for me as long as they're well built (i.e. BlueJeansCable is perfectly fine).

It makes a subtle difference, but definitely a worthwhile investment if you are looking to trim the sound of the amp towards a special set of headphones. Like for instance I like the Sylvania with my K701s, but the RCA cleartop is a wee bit better for the HD580s.

 

[willne1]

Frederik...I've been using Mullards with my EF-1 and HD580's with good results. Have you tried that combo?

Willne1

 

[HeadphoneAddict]

Quote:

Originally Posted by GTL /img/forum/go_quote.gif Has anyone tried the EF-1 with the ESW10 and the E9s? Also I know this is a rather unfair comparison but how does it stack up against the yamamto HA-02?

The ESW1 and Edition 9 are nice off the EF1 and my main complaint is the soundstage isn't as big as with my Woo or Single Power amps (costing 3-4x more). The Woo and Single Power are a little more refined, but that's why you pay bug bucks for small improvements in sound. The EF1 is very competent, and I like it better than I did my DV336i.

 

[UTF]

How much improvement I could expect it over the headphone output of a good entry-level integrated amp/desktop CD player? I am seriously considing to get EF1 as my first dedicated amp to use with HD600, which is currently driven directly from a NAD integrated amp. However, I am still not sure how much improvement I can get from EF1. Also, one review says EF1 is not sound the best with HD6x0 in comparision with such as darkvoice in the similar price range. Any comment?

 

[theBigD]

just got a sylvania tube from skylab this week. this tube is great! it has the widest soundstage of the three tubes ive got (mullard, rca cleartop, sylvania). it makes my pk1s sound like full sized headphones! its brighter than mullard but not as extended in the highs as cleartop and mids are a little brighter than cleartop. most of my listening is with akg 701s. i think the 701s love the mullard, are good with music on rca and probably wont see a lot of use with sylvania. yuin pk1 will get more of a workout with sylvania and rca and not so much with mullard. i gotta say tubes are addictive!

 

[dwong]

Quote:

Originally Posted by theBigD /img/forum/go_quote.gif just got a sylvania tube from skylab this week. this tube is great! it has the widest soundstage of the three tubes ive got (mullard, rca cleartop, sylvania). it makes my pk1s sound like full sized headphones! its brighter than mullard but not as extended in the highs as cleartop and mids are a little brighter than cleartop. most of my listening is with akg 701s. i think the 701s love the mullard, are good with music on rca and probably wont see a lot of use with sylvania. yuin pk1 will get more of a workout with sylvania and rca and not so much with mullard. i gotta say tubes are addictive!

Do you know what brand the sylvania tube is? My stock EF1 came with a Conn branded Sylvania tube with the letters "Conn" imprinted on it in green.

 

[Skylab]

His tube was a Sylvania Sylvania

 

[paara]

Where is a good place to buy opamp's for the EF-1??

AD743JN

also need
AD797

All the places I find just sell by the 1000's.

EDIT: Found it

newark.com

 

[KevM2]

So does this headphone excel with the K701s? I've heard it does exceptionally well with those headphones, but not quite as well with the HD600s. If so, I might check into a pair of 701s to see the difference.