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Little Dot MK VI / Little Dot MK VIII SE Owners Unite
Oct 25, 2013 at 10:11 AM Post #901 of 2,724
alota said:
  Little-dot MKVI is an otl-ocl amp that drives hedphones from 32 to 300 ohm(what i have tried), including akg k-1000 and orthos headphones.
little-dot MKVIII is an otl-ocl amp(same type but with different tubes)that drives only headphones with high impedance(300-600 ohm)
Click to expand...

Littledot`s website claims the mkvi goes to 600 ohms. . . .  
 
Really, subjectively, anyone, what is the difference between these amps beyond price ?  Or maybe I should ask what, if any, reason is there to get the viii and not the vi ?  I`m driving hd800s. . . . 
 
Oct 25, 2013 at 10:32 AM Post #902 of 2,724
Oct 25, 2013 at 10:35 AM Post #903 of 2,724
dopaminer said:
  Littledot`s website claims the mkvi goes to 600 ohms. . . .
 
Really, subjectively, anyone, what is the difference between these amps beyond price ?  Or maybe I should ask what, if any, reason is there to get the viii and not the vi ?  I`m driving hd800s. . . .
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i wrote about my experience
 
Oct 25, 2013 at 10:36 AM Post #904 of 2,724
dopaminer said:
  Littledot`s website claims the mkvi goes to 600 ohms. . . .
 
Really, subjectively, anyone, what is the difference between these amps beyond price ?  Or maybe I should ask what, if any, reason is there to get the viii and not the vi ?  I`m driving hd800s. . . .
Click to expand...

 
I can't speak for the 800s, but I think the MKVI+ is a bit underpowered when trying to drive 650s.  That's with the amp on low gain and with the tubes mentioned earlier that everyone loves.  With a balanced DAC feeding it, anything higher than 85 just starts to sound...  Stressed?  Slightly distorted?  Not very good.  Flipping the switch to high gain introduces additional noise and overall doesn't sound that great.  I plug them into the Lyr sitting next to the MKVI+ and they sound like they should at the higher levels.  The WA6 I used to have had an even harder time with the 650s.
 
However, my 650s are just a few months old too.  This all may change after many more hours of listening.
 
Oct 25, 2013 at 10:42 AM Post #905 of 2,724
2k9r56s said:
   
I can't speak for the 800s, but I think the MKVI+ is a bit underpowered when trying to drive 650s.  That's with the amp on low gain and with the tubes mentioned earlier that everyone loves.  With a balanced DAC feeding it, anything higher than 85 just starts to sound...  Stressed?  Slightly distorted?  Not very good.  Flipping the switch to high gain introduces additional noise and overall doesn't sound that great.  I plug them into the Lyr sitting next to the MKVI+ and they sound like they should at the higher levels.  The WA6 I used to have had an even harder time with the 650s.
 
However, my 650s are just a few months old too.  This all may change after many more hours of listening.
Click to expand...

... 2K how did the LDMKvi+ drive the w1000x... in se
 
Oct 25, 2013 at 10:46 AM Post #906 of 2,724
Oct 25, 2013 at 10:49 AM Post #907 of 2,724
Oct 25, 2013 at 1:19 PM Post #909 of 2,724
2k9r56s said:
   
Never got the chance to try them.  I sent the ATs off the day before the MKVI+ arrived, not knowing the MKVI+ was already in transit.
 
However, I think the MKVI+ won't have a problem at all with them.  Especially since the WA6 drove them with ease.
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how was the noise 
 
Oct 25, 2013 at 2:41 PM Post #911 of 2,724
I took my busted MKVI+ to a local reputable shop in San Jose yesterday. Originally thought it was just a bad fuse, but the shop owner thinks the power transformer malfunctioned as well. Looks like I'm biting the bullet and sending this one back to China for repair.

Aside from that, has anyone tried drilling holes into the top of the amp for ventilation? It seemed to us that there is no place for heat to escape with the standard enclosure. Wondering what good the fans even do under this assumption.

Thanks for any feedback.
 
Oct 25, 2013 at 3:07 PM Post #913 of 2,724
opethian10 said:
I took my busted MKVI+ to a local reputable shop in San Jose yesterday. Originally thought it was just a bad fuse, but the shop owner thinks the power transformer malfunctioned as well. Looks like I'm biting the bullet and sending this one back to China for repair.

Aside from that, has anyone tried drilling holes into the top of the amp for ventilation? It seemed to us that there is no place for heat to escape with the standard enclosure. Wondering what good the fans even do under this assumption.

Thanks for any feedback.
Click to expand...

 
Does yours not have the holes dotted around each of the six tube sockets?
 
Oct 25, 2013 at 3:09 PM Post #915 of 2,724
opethian10 said:
Aside from that, has anyone tried drilling holes into the top of the amp for ventilation? It seemed to us that there is no place for heat to escape with the standard enclosure. Wondering what good the fans even do under this assumption.

Thanks for any feedback.
Click to expand...

There are holes around the tube sockets for the heat to escape. That roughly 60 holes on the top.
 
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