Little Dot MKII Tube Headphone Ampsearch

Little Dot MKII Tube Headphone Amp

Little Dot MKII Tube Headphone Amp

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Super Disappointed with this drop. Amp showed up DOA. I just opened a support request so will have to see what my options are.
crizzle
no response yet from Massdrop suppprt. Is that normal?
crizzle
Now over a week. One comment, asking me to be patient because they are experiencing high contact volume. Meanwhile I have a DOA tube amp and I am considering a chargeback. This is absurd.
I tried using this unit sideways due to space constraints for about 2 hours.
Long story short, i cleared my desk for more space and is now upright. The somabeech gets wicked hot sideways.
This or dark voice?
TheBlueDuck
dark voice
if i choose a different set of driver tubes are the stock 6j1 still included?
jordym
Nope
I bought these last time to drive my 6XXs and I was very disappointed. I've never owned a tube amp, but there was a pretty loud buzz present when there were quiet parts to music, and it occasionally would bleed into louder parts of the music. When there was nothing playing it was VERY loud and distracting. Was I doing something wrong?
bluestank
That sounds like a ground loop. Are you feeding the amp from a source that isn't plugged into an outlet? If not, try running it off your phone or an audio player. If that fixes it, you need to plug the amp into a different outlet or buy a ground loop isolator. If the buzz isn't fixed when trying a source that isn't plugged in, try different tubes if you've burned yours in for a while. If different tubes don't solve the problem, open it up and dig in with a multimeter; something is inducing electrical noise in the system from your description.
bluestank
Chances are, you've got a ground loop issue.
Are the jumpers pre-installed? I found what looks like a jumper in RCA cable bag. Just one.
pvherm
Jumpers should be pre-installed.
Hoping someone can help me or at least point me in the right direction...
I experienced a failure with my Little Dot Mk II today. I was listening to my 6XX at pretty low volume (10:00 on the dial approximately) when the volume completely cut out... I turned the volume way up and barely heard the sound, though it was just barely there...
What I did to debug:
0. turned power off and then back on to the source, dac, and little dot. No difference 1. tried different headphones. No difference (not the headphones) 2. moved the source to my O2 amp - works perfectly (not the source) 3. changed out my tubes to the stock tubes (the small ones, not the big ones since I had not rolled those) - no difference
My Little Dot is only approximately 4 months old and barely gets used (a couple of hours every other week), and always at low volume.
Anyone have suggestions?
jsmiller58
Is the blue power light still coming on? If not, check the fuse to confirm it's intact. If the fuse has blown, ohm-out the rectifier. If it's bad, replace it with a 5w-10w full wave bridge. The most recent LD MkII's have poor quality rectifiers in them. If the light is still on, you need to open it up and start ohming-out your caps. Based on your description it sounds like you've got a bad cap, hence why there's no amplification of the signal.
Motologist
Blue power light is on.
Good advice, and I greatly appreciate you taking the time to respond to my post!!
I will do just as you advise and check out the caps to see if any have shorted out.
Thank you!!
I accidentally ordered the 220v variant (i I’ve in the USA) I‘ve contacted massdrop service but as the drop has just loses an hour ago, they can’t change much. does Anyone know how to contact the vendor? Or would they see a US address and fix my good up? Really hoping I don’t have to cancel :(
Can someone please explain how I can tell if I can use this as a preamp? The LD instructions say to NOT USE it as a preamp if the power amp it's connected to is "direct coupled" . I've seen reports if people using it with all sorts of amplifiers, some of them being brand new. Its my understanding that virtually all power amps made today are direct coupled??
Looks like lots of people are using it (unknowingly) successfully with DC (direct coupled) amp. I'm not sure what makes an amp a DC one. I want to use the little dot as a preamp for my class d/t - SMSL SA-98E amplifier, or SMSL SA-36A. I am unsure whether it would be compatible with those??
I've had this for about a year, with the upgraded tubes. Also bought some gold grid 6N6P and Siemens 6AK5W. Sounds great, but I've joined the La Figaro 339 drop and am looking to sell my LD2 to an enthusiast who will give a good home. PM if interested.
Oh wow! $1.01 PRICE reduction, better get it before they sell out! Better hurry...
Xpfreaky
EXACTLY what I noticed! What a total joke! I'm sure the shipping cost is likely $20 more than other places, making it $19 more expensive to buy here :p
WHAT DEAL!!!!
Hey all, so I tried connect my Google cast to the mkII and have also tried to connect my record player to it, before connecting it to audio engines S3 - the volume is really low, and I have to turn the gain up really high before I hear anything. Anyone has any idea why?
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Don't record players require a phono amp before an amp?
Heavyboxer
Oops forgot to mention, using headphones while working the problem out. But my record player has a built-in phono amp. Thanks for replying so quickly man
Just received mine yesterday. Blown two fuses already. I just want to get it working before my hd6xx's arrive.
So I need some guidance, I have oppo ha2se and sennheiser hd6xx, if I get this amp, do you expect that I would hear a quality improvement (assuming I buy a separate dac with similar performance as the dac on my ha2se?) Any advice or guidance is greatly appreciated.
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😏 end game is just a word we made up to tell ourselves it's ok to buy this one last thing 😂 thanks for your input. I get the feeling that this little amp supplies a lot of power and I think you verified that, but I just looked at the CTH amp, in comparison that one looks weak spec wise for a high impedance headphone (assuming I'm reading it right) but dang it has such positive reviews even for ppl paring it with hd6xx. My little brain is more confused and uncertain than before now haha, cant make a decision!
I'm now also eyeballing Topping D50 and CTH or this amp, sounds like a sweet combo for my needs!
The hd6xx responds great from what I hear with this amp. I went ahead and got the upgraded tubes, hope you did the same! Happy rolling!
If I want to buy the amp with both tube as additional, hlw can i add that to my order?? Anyone know how to do that?
Just bought this on Ebay, I know it was from Massdrop because the RMA slip from the original purchaser was in the package lol. Unit would not power on (broken fuse). I replaced the fuse and it powered on. However, when connecting to the input RCA, I get no sound out of the HP out. BUT, when I run from my DAC to the output RCAs (preamp), I get sound from the headphones, but no volume control with the pot. Very very weird. Did the factory switch the input and output? Anything I can do to fix the volume pot?
Got this amp yesterday. Arrive undamaged. One packing complaint. Why the hell would they use foam with 3 tube holes and just tape the last tube on??? Guessing some dipstick in China can’t count tubes lol.
Well made unit and to be frank it sounds awesome out of the box. I will be rolling Mullard drivers and Voskhod powers as soon as $ allows.
Very happy with this. Next up 300ohm cans prob Senn 650.
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Packaged just arrived today! Sadly...I ordered the 220v instead of the 110v and I'm living in North America. I'm assuming the entire unit/amp is for a 220v cable only and I can not just use a normal power cable that would fit my wall socket instead?
Awaiting a response from customer support right now, but I thought I'd clarify with the discussion thread anyways.
KillerFloyd
Hey how did this turn out for you??? Same shit happened too me and CS were dicks, hopefully they were keen enough to see the discrepancy and give the 110v instead. However I hear you can do a simple mod for and covert it to 110v.
iknowyounaut
Did you ever get this to work? I wired the primary windings of the transformer in parallel but my fuse keeps blowing. No response from little dot at all and CS does nothing. What a joke
I got notification that mine has shipped. I wasn't expecting this till late June. Now is great if it is really happening. Fedex is in the label creation process. Further details will be available when the item starts to move. Anyone else from the last drop also get this notification?
How will a headphone tube amplifier like this work with a pair of studio monitors. I have 2 yamaha hs7's and a yamaha hs8s subwoofer.
JossaFossa
The HS7 are powered so why would you use an amp
sadiq
Mainly for the tube sound
Testing mine now. Only had it on for like 20 minutes so far. The stock tubes have not had their burn in yet (some people say tubes need at least 100 hrs on them and say the stock tubes are not great) but I can say the stock tubes sound pretty good so far.
First impressions is that the bass is clean and stronger than my little bear b4 (example: song: the weeknd call out my name on youtube has very distorted bass and this amp does it very clean which is good for a low quality youtube video). It does sound spacious which I wonder will change (a bit recessed maybe burn in will help or aftermarket tubes).
I have some ge 5654. Russian power tube and russian voshkods on the way, will test once I burned the stock tubes in first to see how awesome the new tubes are (have to burn them in too cause I got the new versions).
Issues so far: - Mine was shipping by fedex and the box was damaged on the side. Unit is working fine so far tho. - Already known issues: Up to like volume 10 the left channel is louder then once you raise the volume it gets balanced. - With nothing playing you can hear hiss above volume 50. Barely noticeable around volume 30. I hear burn in will fix the hiss or trying higher quality tubes than vs the stock.
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Try "The Pizza Tapes" (Jerry Garcia, David Grisman, and Tony Rice) : All guitar and some serious jams.
sucram65
Good :D
Testing mine right now from previous drop! :) Stock tubes are better than I through.
Would this make a great preamp for JBL's lsr305 monitors? Has anyone tried?
Little Dot makes great value and performance products! I've owned the MKII and MKIII for years, and have even used them both as main stereo preamps, driving McIntosh amps going into Magnepan planar speakers. The sound is warm, detailed, and lush... perfect for my high level tastes and expectations! And they sound phenomenal with cans! What a steal!
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I have no experience using 'active' speakers. Only old school passive speakers hooked up to my McIntosh amplifier, being driven by the MKIII (currently). I have not attempted to see if I can listen to my 'cans' while the preamp is driving an amplifer. I have no need to, since i'm either listening to my cans, or my speakers. I would imagine, what you need to look for is RCA inputs in back of your active speakers (that you can connect the preamps RCA outs to), or a mini-plug that serves as an input. Hopefully, that would disable any physical volume control on your active speakers, and allow you to use the MKII or MKIII's volume knob.
HamRadioANDAudioNut
Ok, so I know the answer now. Pre amps are great for powered speakers, I would even say that powered speakers can take anything, even headphone amped signal. The LD mk II does modify the sound (makes it tubey) and it does amplify it too, the volume knob works. You got to have the amp on for the Pre amp here to work. My solid state amp Topping A30 works different, the Pre amp works even when the amp is off, no amplification, volume know does know, it is basically just pass through here.
That $1.01 discount though
/Whistles ironically
I'm so excited, I just can't hide it!!
Can't wait to preamp this to my MK 3 SE !!
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Wouldn't it amplify the signal to receive an even better stronger signal to the Mk iii SE....?
Jorge007
No. You definitely don't want to use multiple preamps - the volume knobs will drive you crazy. You have to calibrate and re-calibrate BOTH volume pots each time you play something with a different volume level - a nightmare lol.
If you want a ore more tubey sound, get or build a tube power amp (connected to your speakers).
Let me ask 1 more question, if I may... if you use this amp as a pre-amp, which gives actually get used? Do all 4 times work to amplify the signal along tothe other amp? Or just the back 2 tubes work, and the other2 tubes remain dormant?
Jorge007
the big tubes are power, small tubes are the signal, both right and left channel get their own set. amp cannot function without all 4 tubes. one of the benefits of this amp is that the preamp isn't a separate circuit, it also goes through the tubes.
azcs
Hey thanks a ton for clarifying that for me! I appreciate it very much! Happy listening!!
I know it's been asked, and also partially answered but...allow me to ask 1 more time, as it may provide insight for me and others...
But when using this tube- Electro-Harmonix 6H30Pi Gold Pins , do you have to change any settings or will the factory voltage settings sufice...?
Thanks in advanced!
Jorge007
You don't need to change anything for the 6H30Pi - just take the old tubes out and put the new ones in. There's no jumpers or any other settings for the POWER tubes like there are for the driver tubes.
RF95349
Rf95349- thank you so very much! I really appreciate the time you were able to take, to help me clarify that! Take it easy, and happy listening!
I enjoy my Little Dot MKII and Magni 3 and Vali 2 - all of them are amazing quality apart of any price consideration, just different in sound.
tacit57
I have that trio as well (along with some others). All three are excellent entry-level amps. The Little Dot MK II is a fantastic fit if you have some 300 ohm senns.
OCBob
I use Little Dot with 300 ohm Bayers and Senns, and, you are right, they are just fantastic! I also have Fostex HP-V1 , which is semi portable and had amazing sound, also portables Lars & Ivan THA-8X and non tube Lucid Labs CMOY , which is unbeatable values for its price, https://www.amazon.com/Audiophile-headphone-amplifier-quality-parts-Newmans/dp/B00H7JH8A2/ref=sr_1_2?ie=UTF8&qid=1524646816&sr=8-2&keywords=CMOY
This is a pretty good tube amp. I bought mine from Amazon and it easily power any headphone I've tried with it. From Planar to the HD6XX they all sound good with this amp. The Voshkod 6ZH1P-EV ($40 on Ebay) tubes are great tubes and its a noticeable upgrade from the stock tubes. I haven't felt the need to upgrade at all. Paired it with a Audioengine D3 and it's awesome. Before this I had a Schiit stack, but it was too bright.
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Yeah, I hate buying out of the US, so I will avoid it every time. Plus I don't mind paying a little more from from a reputable store rather than some random seller in another country and wondering if what they sell are carp or what.
There's been more than a few times when I went cheap and bought something from overseas to save one or two dollars, and the item was damaged or just don't work, and the hassle of returning it was not worth it, so I end up buying locally and losing money. Only time I buy anything overseas is when its not available in the US and I really need it.