Little Dot Tube Amps: Vacuum Tube Rolling Guide   A quick introduction: Who is this guide for? (plus some background)   When I purchased my first Little Dot amplifier in 2005 I was in a position many of you are in now.  I was new to high end headphones, and curious about the ‘tube’ sound...

Monster "HDMI Difference" scam still kickin' in Fry's Electronics Not sure if this is news to the community, but it's quite shocking to me that even the largest cable company couldn't resist testing the fine line between marketing and scam.

Found this picture of a Little Dot using the 6H6P-I power tubes on what looks like the old II++ chassis. Not sure if this is news but some people here might find it interesting...

Hi all, I'm new to the DIY cables scene so please be nice. I'm interested in learning how to terminate headphones with balanced connectors (both 3-pin and 4-pin). I think I have figured out 'how' to do the job thanks to this great forum but I need some help in choosing which connectors to...

I have heard a lot of good things about the HR Max DAC module and I have no reason to doubt that it sounds anything but fantastic, but as an electrical engineer by training I would love to see some graphs elucidating its performance. I figured this would be the perfect forum to ask this...

Over the last three to four years Little Dot has produced many incredibly successful and popular series of headphone amps. With the introduction of the new Mk-series from Little Dot the nomenclature of LD amps has evolved to become so convoluted that even long time followers like myself are...

Greetings fellow head-fiers. A friend of mine lost one of the ear clip pieces on her KSC75, any idea where to get a replacement part or if Koss will supply one for free under the "lifetime warranty"? -DoA

The MkII is finally for sell on ebay and it's shaping up to be the next big thing in affordable tube amps. Post your impressions, reviews and tube-rolling experience here!

What happened?

Is there a concensus amongst Little Dot users as to whether or not the Mk series are a definite improvement over the II+/++? I've always been suspicious of the Mk series since a lot of resource and effort has obviously been put into making the case look fancier that I wonder if they're still as...

I noticed that a NIB LDII+ sold on ebay for a little more than $150 just recently. Is this comparable with the going rate on head-fi? IIRC, it seems to me like most LDII+/++ amps sold in the FS forums here have upgraded tubes as well as for less than $150. Don't the early LDII+ amps ever go out...

Is there measurements anywhere of these DACs? I'd like to see some graphs...

I know you're supposed to remove the jumpers if you're using the amp with low-impedance headphones, but what exactly do they do? Is it just a gain switch or does it somehow manage some sort of impedance matching?

There hasn't been much talk about the LDII++ recently. Is this amp still THE entry level tube amp to get or has it fallen out of favor to other amps in its price range?

Which portable amp you've tried synergize best with the MS2i?

I dusted up my malfunctioning LDII+ last weekend to have a look inside with a multimeter, hoping to discover the reason why the left channel is dead and why it was arching before it was dead. I came away with more questions about the LDII+ design than ever before. First of all, when I...

YES!

How much do a pair of used MS2i go for these days? Are they still going for ~30% off new retail (~$200) or had the market gone up since I last checked about two months ago? It's been a while since anyone's posted a FS thread.

Very often I see fellow head-fiers recommending portable amps like the Hornet or the Supermini to new members who're just looking for a home amp and don't need the portability. Why is this? There seems to be a belief that portable amps are somehow comparable to home amps in terms of SQ, which...

This will be my first multimeter, don't need anything fancy, just planning on building and debugging a circuit or two. Budget is no higher than $50 (preferably in the $30's). I'm not sure what exactly to look for so I'm hoping you guys could help me out.

In order to remove the PCB from LDII+, one must desolder the two 7805transistors (they're located slightly behind the power tube sockets). Once you've desoldered the two parts, the board will come out (provided that you remove all four screws that's obviously holding down the PCB).

Hi, a friend of mine is interested in buying a new pair of HD595, what is the best place (cheap and reliable) that you know of to buy it from?

Hi, I just ordered the LDII++ from David and it'll be on its way in a week or two. Just like to know what are some of the best sounding tube combinations fellow LDII++(v2) owners have tried and where did you source the tubes? I'm going to use the amp with HD650 and am specifically looking for an...

I'm considering an upgrade to that price range... does anyone have experience with both amps? How do their SQs compare with each other?

Bad news. So when I turned on my beloved LDII+ tonight, the left channel was dead. At first I thought it was the music that was mixed funny (listening to new music), but when I put on some familiar acapella quartet and only a duet came out, I realized that something was definitely wrong. I tried...