Little Dot I+ Tube Rolling
Apr 22, 2016 at 10:02 AM Post #2,643 of 3,154
i see, so is the 6hm5 part of the stock family? (please say yes please say yes please say yes) 


Sorry, I don't even remember what the stock tubes were (I've had mine for years) but I'm sure someone else will be able to answer that.
 
Apr 22, 2016 at 10:04 AM Post #2,645 of 3,154
No worries. Your advise is intresting.
Many thanks for sharing.

A ciao from Paris !


No worries :)


I have a pair that appear to look just like that one:




And if I look carefully, I can see the 5654 USA and a few dots sandblasted into the glass. So mine were actually manufactured by GE, not Siemens.


Cool stuff :)

Edit: looking at my pair I can see the same, never noticed it before....
 
Apr 22, 2016 at 10:09 AM Post #2,646 of 3,154
  i see, so is the 6hm5 part of the stock family? (please say yes please say yes please say yes) 

 
It depends... Some LD1+ were shipped with EF92, some with EF95 and some with 408A. If you amp came with EF95 tubes installed, you can roll the 6HM5 without changing any jumpers.
 
Oh...  EF95 = 6AK5 = 5654 = 6J1....
 
Apr 22, 2016 at 10:11 AM Post #2,647 of 3,154
   
It depends... Some LD1+ were shipped with EF92, some with EF95 and some with 408A. If you amp came with EF95 tubes installed, you can roll the 6HM5 without changing any jumpers.
 
Oh...  EF95 = 6AK5 = 5654 = 6J1....

nice :D the one im planning to buy on amazon seems to be 6j1 :D  ill order that and some 6hm5 mullard tubes :D so that will give me that honey sweet warm gooey vintage tube amp sound that im after? 
 
this has been quite a journey...but slowly learning i think...
 
i guess the first step is to find your favorite headphones that sound good and feel comfy and then choose an amp that suits it best....i was kinda doing things backwards lol...
 
so i guess in my case its gonna be k7xx+littledot i+ with 6hm5 mullards xD 
 
Apr 23, 2016 at 1:23 PM Post #2,649 of 3,154
Apr 23, 2016 at 1:26 PM Post #2,650 of 3,154
One more thing. The q/k7 family are low-impedance cans, but their very low sensitivity actually makes them one of the harder-to-drive ones. I have never tried any q/k7 with my I+, so it you 'd better do some research to be sure. But I'm under the strong impression that it's gonna be fine.
 
Apr 23, 2016 at 1:28 PM Post #2,651 of 3,154
I have a pair that appear to look just like that one:




And if I look carefully, I can see the 5654 USA and a few dots sandblasted into the glass. So mine were actually manufactured by GE, not Siemens.
Mine look the same as you two's, but they were too polite for my taste. Still having 2 of these but I spend more time on others tube.
 
Apr 23, 2016 at 1:49 PM Post #2,652 of 3,154
Mine look the same as you two's, but they were too polite for my taste. Still having 2 of these but I spend more time on others tube.


Yeah that may very well be. Please remember that I tuned my LD to sound dark the best with the Fidelio X2, not taking any other headphones into consideration. Choice of op amp and the fact that mine were fed by a tube dac will also play a role :wink:
 
Apr 24, 2016 at 10:54 AM Post #2,653 of 3,154
nice :D the one im planning to buy on amazon seems to be 6j1 :D  ill order that and some 6hm5 mullard tubes :D so that will give me that honey sweet warm gooey vintage tube amp sound that im after? 

this has been quite a journey...but slowly learning i think...

i guess the first step is to find your favorite headphones that sound good and feel comfy and then choose an amp that suits it best....i was kinda doing things backwards lol...

so i guess in my case its gonna be k7xx+littledot i+ with 6hm5 mullards xD 


If you have not ordered yet, they have this on Massdrop for $89 right now, if they get enough buyers. It just went up, and already has 2 buyers with 6 committed out of 10 total needed with 6 days left, so it should make it. Of course, if you are not on Massdrop, none of that makes any sense to you.... The cheapest version on Amazon is $110, so this is a decent deal, even with the $9 shipping.
https://www.massdrop.com/buy/little-dot-i-headphone-amp?utm_placement=12&referer=7HUBQ9&mode=guest_open&utm_source=Sailthru&utm_medium=email&utm_campaign=Automated%20Daily%20Promotional%202016-04-24&utm_term=Daily%20Promotional
 
Apr 24, 2016 at 10:10 PM Post #2,654 of 3,154
If you have not ordered yet, they have this on Massdrop for $89 right now, if they get enough buyers. It just went up, and already has 2 buyers with 6 committed out of 10 total needed with 6 days left, so it should make it. Of course, if you are not on Massdrop, none of that makes any sense to you.... The cheapest version on Amazon is $110, so this is a decent deal, even with the $9 shipping.
https://www.massdrop.com/buy/little-dot-i-headphone-amp?utm_placement=12&referer=7HUBQ9&mode=guest_open&utm_source=Sailthru&utm_medium=email&utm_campaign=Automated%20Daily%20Promotional%202016-04-24&utm_term=Daily%20Promotional

You'd save the most if you go for the version with WE408 tubes.
 
Apr 29, 2016 at 5:01 PM Post #2,655 of 3,154
I'm new to tube amplifiers and reading through an old thread http://www.head-fi.org/t/395877/tube-rolling-the-little-dot-i-for-use-with-the-grado-sr225-headphone Sylvania Gold 408a seems to work wonders on this amp. (I purchased on little dot on massdrop with stock tubes, waiting for shipment)
 
I also found this on ebay: http://www.ebay.com/itm/SYLVANIA-GB-408A-GB-408A-GB408A-Tube-4-Pieces-NEW-/121960504865 At 157$ the price is steep. Could someone with experience on these tubes tell me how they are? Thanks in advance!
 

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