[kvtaco17]

  Are they comparable in sound? I am thinking about grabbing a set of the Tung Sol 6AU6 as well and possible another pair of these tektronix to hold onto just in case. 

Nope, completely different beasts!

 

[gibosi]

Well, everyone's ears and gear are different, but I liked the 6HM5 better than the GE 8425.
 
For what it's worth, I liked the Tung Sol 6485/6AH6 better than the GE 8425, so you might want to try a pair. The 6485 requires the same 2-7 mod as the 8425.
 
But eventually, you really should try a pair of 6HM5. And it is EF95 compatible, so no mod required.

 

[plus9paradox]

Thanks for the awesome advice guys looks like ill be spending a lil more money on tubes im trying to come up with some sort of jumper for the 2 to 7 so you do not have to risk damaging sockets or pins

 

[plus9paradox]

Has anyone upgraded any of the capacitors on the LD I+? And if so what results if any

 

[gibosi]

  Has anyone upgraded any of the capacitors on the LD I+? And if so what results if any

 
Surely someone has, but I don't believe they have posted anything here on Head-fi. There are some folks over in AudioKarma who have attempted various mods at the circuit board level. For example:
 
http://www.audiokarma.org/forums/showthread.php?t=259926
 
http://www.audiokarma.org/forums/showthread.php?t=274126
 
By the way, have you swapped out your stock op amp yet?

 

[plus9paradox]

   
Surely someone has, but I don't believe they have posted anything here on Head-fi. There are some folks over in AudioKarma who have attempted various mods at the circuit board level. For example:
 
http://www.audiokarma.org/forums/showthread.php?t=259926
 
http://www.audiokarma.org/forums/showthread.php?t=274126
 
By the way, have you swapped out your stock op amp yet?

Yes I have swapped it to an OPA2107. I tried LM4562 as well but was not happy with the sound. Here are some pics for everyone.

Tektronix GS 8425A/6AU6 Installed

Soldered Pin 2 to Pin 7 with jumper wire (yellow)
 
I think I am going to get a couple SOIC OPA627 and see how those sound before getting too serious. I am having a hard time identifying the construction of the small yellow box caps. I am assuming the are polyester film capacitors but they have no real branding or identification.

 

[gibosi]

  Yes I have swapped it to an OPA2107. I tried LM4562 as well but was not happy with the sound. Here are some pics for everyone.
 
I think I am going to get a couple SOIC OPA627 and see how those sound before getting too serious

 
I am currently running a MUSES 02 op amp and am very happy with the sound. Compared to the other op amps I have tried, the stock MC33078, an OPA2107, an LME 49990 and the MUSES 01, the MUSES 02 is the best yet. However, it is not cheap....

 

[plus9paradox]

   
I am currently running a MUSES 02 op amp and am very happy with the sound. Compared to the other op amps I have tried, the stock MC33078, an OPA2107, an LME 49990 and the MUSES 01, the MUSES 02 is the best yet. However, it is not cheap....

I did a quick google search and they seem to be reasonably priced but i wonder if for the little extra cash a discrete opamp such as the burson or dexa discrete models would be worth the slight bump in price. How much did you pay for your muse 02 and what kind of qualities would you attribute to it?

 

[gibosi]

  I did a quick google search and they seem to be reasonably priced but i wonder if for the little extra cash a discrete opamp such as the burson or dexa discrete models would be worth the slight bump in price. How much did you pay for your muse 02 and what kind of qualities would you attribute to it?

 
I have no experience with any of the discrete models, so can't comment....
 
Here are my previous postings regarding the Muses 02::
 
http://www.head-fi.org/t/364043/little-dot-i-tube-rolling/1590#post_9970970
 
http://www.head-fi.org/t/364043/little-dot-i-tube-rolling/1680#post_10176298

 

[plus9paradox]

   
I have no experience with any of the discrete models, so can't comment....
 
Here are my previous postings regarding the Muses 02::
 
http://www.head-fi.org/t/364043/little-dot-i-tube-rolling/1590#post_9970970
 
http://www.head-fi.org/t/364043/little-dot-i-tube-rolling/1680#post_10176298

Hmm looks like I'll be getting one of these price is not to bad at all compared to ~$85 for a cheap discrete model. Would you say the Muses 01 is almost to neutral given my choice in tubes (GE 8425A)? I really enjoy a warm, detailed sound.

 

[gibosi]

  Hmm looks like I'll be getting one of these price is not to bad at all compared to ~$85 for a cheap discrete model. Would you say the Muses 01 is almost to neutral given my choice in tubes (GE 8425A)? I really enjoy a warm, detailed sound.

 
Of course, everyone's ears are different. But if you like a "warm" detailed sound, then I suspect you would find both the MUSES 01 and the LME 49990 too cool. As you like the OPA 2107, then you will likely find the MUSES 02 to be similar, but in my opinion, much improved.
 
Cheers

 

[plus9paradox]

   
Of course, everyone's ears are different. But if you like a "warm" detailed sound, then I suspect you would find both the MUSES 01 and the LME 49990 too cool. As you like the OPA 2107, then you will likely find the MUSES 02 to be similar, but in my opinion, much improved.
 
Cheers

Sounds like the MUSES02 is what I will be ordering. Just need to find a good deal on price now. Thanks for all your help with everything.

 

[bundy]

I am new to tube rolling & op amps so i hope this doesn't sound like a stupid question, is there a list of wot op amps can be used in my little dot 1+? I have been given a few & i have found all but 1 mentioned in this thread. Does anyone know if i can use a LT1366 CN8 in my amp. I am using a OPA2107 now & i am very impressed with the improvement it has made to the sound quality over the stock op amp  

 

[plus9paradox]

Hey gibosi,
What DAC are you using with your LD I+?

 

[i luvmusic 2]

I'am interested on this question.......

I'am looking for a DAC to pair with my Future CRACK KIT and i'am considering the Schiit Modi.