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- Users: ViperGeek
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Little Dot MK VI / Little Dot MK VIII SE Owners Unite
Congrats on the new tube amp. I replaced the stock fans with two Noctua NF-R8 80mm Fans. The original URL from Amazon now points to dog collars, but I found these: https://www.amazon.com/Noctua-Bearing-Cooling-NF-R8-redux-1200/dp/B00KF7T9MI/ plus the splitter wire required...- ViperGeek
- Post #2,628
- Forum: Headphone Amps (full-size)
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Little Dot MK VI / Little Dot MK VIII SE Owners Unite
No, it's not dead. The activity comes and goes. I personally only have the Mk VI+ and so don't have any personal recommendations for tube rolling on the Mk VIII. Earlier, I posted a list of favorites, based on personal research, for tube rolling on the Mk VI+...- ViperGeek
- Post #2,598
- Forum: Headphone Amps (full-size)
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Little Dot MK VI / Little Dot MK VIII SE Owners Unite
Congratulations on obtaining and enjoying the LD MK VI+. As a long-time owner and fan of the Little Dot tube amp line, I'm sure you'll have years of making beautiful music together. In general, upgrading driver tubes makes more of a Sonic difference than upgrading power tubes. Having said that...- ViperGeek
- Post #2,570
- Forum: Headphone Amps (full-size)
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Little Dot MK VI / Little Dot MK VIII SE Owners Unite
The only official Little Dot reference I'm aware of is: http://www.littledot.net/forum/viewtopic.php?f=9&t=831 I recall someone had a reverse-engineered schematic at one point. Maybe in the Little Dot Super-Mods thread...- ViperGeek
- Post #2,552
- Forum: Headphone Amps (full-size)
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Little Dot MK VI / Little Dot MK VIII SE Owners Unite
You're very welcome. The Shuguang CV181-Z drivers need adapters, but the more expensive CV181-TII drivers have a smaller base and do not need adapters. Checking out their website, I guess the CV181-Zs aren't available anymore. [UPDATE: Google says they're available elsewhere.] I kinda like...- ViperGeek
- Post #2,544
- Forum: Headphone Amps (full-size)
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Little Dot MK VI / Little Dot MK VIII SE Owners Unite
Happy New Year, and welcome to the LD MK VI+ Fan Club! Without a doubt, the Little Dot MK VI+/VIII headphone amps punch well above their weight class. Occasionally, I start my eye wandering for something better (read: more expensive), but I'm usually surfing while listening to my MK VI+...- ViperGeek
- Post #2,542
- Forum: Headphone Amps (full-size)
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Little Dot MK VI / Little Dot MK VIII SE Owners Unite
You're very welcome. In addition to the amazing link SonicTrance shared above, here's my original post on my collected favorites for tube rolling so far: https://www.head-fi.org/threads/little-dot-mk-vi-little-dot-mk-viii-se-owners-unite.522099/page-150#post_12203881 - Dave- ViperGeek
- Post #2,532
- Forum: Headphone Amps (full-size)
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Little Dot MK VI / Little Dot MK VIII SE Owners Unite
Hi Sage. I can't help you with a mods list (other than recommended tube rolling), but the official Mk VI+ page is: http://www.littledot.net/forum/viewtopic.php?f=9&t=831 and includes a (Dropbox) link to the manual...- ViperGeek
- Post #2,529
- Forum: Headphone Amps (full-size)
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Astell & Kern AK70 MKII with dual DAC
Thanks for the confirmation, Jason. I just bought a 256GB microSD card and formatted it as exFAT. So far, so good, but if I run into strange problems, I'll reformat it as FAT32 using http://www.ridgecrop.demon.co.uk/index.htm?guiformat.htm . - Dave ps. FWIW, Android OS has supported exFAT...- ViperGeek
- Post #693
- Forum: Portable Source Gear
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Little Dot MK VI / Little Dot MK VIII SE Owners Unite
Very imprecisely, two indicators of tube failure (other than total blowout) are: Noticeable increase in distortion or decrease in gain in one channel* Noticeable decrease in the meters, which show the working positive (+ve) plate current for one of each pair of power tubes *There are many...- ViperGeek
- Post #2,483
- Forum: Headphone Amps (full-size)
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Little Dot MK VI / Little Dot MK VIII SE Owners Unite
Hi Mattias. The Tung Sol 6SL7GT fit without an adapter, but the fatter base on the Shuguang Treasure CV181-Z driver tubes require an adapter such as: http://www.ebay.com/itm/1pc-Octal-Gold-plated-tube-saver-adapter-for-EL34-GZ34-KT88-6V6-6L6-5Z3P-6SN7GT-/191109289479 Note that the higher end...- ViperGeek
- Post #2,480
- Forum: Headphone Amps (full-size)
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Little Dot MK VI / Little Dot MK VIII SE Owners Unite
Hi wkndWarrior. A ways back in this thread, I made a list of prospective driver and power tubes for my Mk VI+ here: https://www.head-fi.org/f/threads/l...se-owners-unite.522099/page-150#post-12203881 Personally, I've tried Tung Sol 6SL7GT Cryo Treated driver tubes before selecting the CV181-Z...- ViperGeek
- Post #2,478
- Forum: Headphone Amps (full-size)
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New Grace Design m920 DAC/amp with DSD decoding
What Jester said. The Grace Design m920 — or all Grace DAC/amps for that matter — is a world class, commercial build quality DAC and headphone amp with the added benefit of also being a fully balanced preamp. The USB, AES3, S/PDIF, and TOSLINK (optical) inputs give you an incredible range of...- ViperGeek
- Post #673
- Forum: Dedicated Source Components
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Little Dot MK VI / Little Dot MK VIII SE Owners Unite
You are correct. According to http://www.littledot.net/forum/viewtopic.php?f=9&t=871 "The Little Dot MK VIII SE is designed to be used with high impedance headphones like Sennheisers (HD600, HD650, HD800) and Beyerdynamics." On the other hand, the Little Dot MK VI+ is a high current beast...- ViperGeek
- Post #2,468
- Forum: Headphone Amps (full-size)
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Little Dot MK VI / Little Dot MK VIII SE Owners Unite
Hey Milez. I'm the proud owner of both a Little Dot Mk. III and Mk. VI+, so I would imagine the Mk. VIII would fall somewhere in between. As with any tube amplifier, the actual tubes get hot to the touch (last time I measured, they were about 140°F). However, the smaller tubes of the Mk. III...- ViperGeek
- Post #2,459
- Forum: Headphone Amps (full-size)
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Audeze LCD-4
Not to beleaguer the wood grain/pattern point, but I was also very slightly disappointed when my LCD-4s (left) came with wood that, to my eye, was less attractive than my LCD-2 Rosewood cans (right): Of course, you don't see then when you're listening to them, but I was hoping to...- ViperGeek
- Post #5,323
- Forum: High-end Audio Forum
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Grace Design x Massdrop m9XX DAC/Amp Review: First Impressions
Couldn't agree more. The m9XX is the "little engine that could." My highest praise is, I've completely taken it for granted. It just works, and makes me smile every time I listen to a wide and varied set of cans driven by the graceful, little Grace DAC/HPA. - Dave- ViperGeek
- Post #1,886
- Forum: Dedicated Source Components
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Reply to review by 'vipergeek' on item 'Audeze iSine 20'
Thanks for your review! I was intrigued by this sentence: "You can pay $549 and get the iSINE with standard 1/8” cable or pay another $50 to get both the lightning cable and the standard cable." I hope this is true, but so far I haven't seen the iSINE 20 offered with anything...- ViperGeek
- Head Gear rating reply
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XDuoo XD-05 Portable Dac/Amp Introduction - Impressions
Thanks man! - Dave- ViperGeek
- Post #677
- Forum: Portable Source Gear
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XDuoo XD-05 Portable Dac/Amp Introduction - Impressions
Sorry if this was asked already (search found no results), but does anyone have any experience with trying to drive Audeze LCD-2 or LCD-4 cans with this DAC/amp? It's been described as powerful -- some say, too powerful -- but the LCD-4's are beasts and I've not found a portable amp that's up...- ViperGeek
- Post #675
- Forum: Portable Source Gear
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Astell&Kern XB10 Extreme Bluetooth Adapter
Another DAP enters the aptX fray: https://www.headphone.com/blogs/news/the-footloose-and-wire-free-fiio-x1-ii-high-resolution-media-player-is-a-killer - Dave- ViperGeek
- Post #168
- Forum: Portable Headphone Amps
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Audeze iSINE 10 & iSINE 20: Audeze releases two new IEM planar magnetic earphones
Thanks for the confirmation, Audeze! Looking forward to some balanced iSINE 20's connected to an XB10 or AK70. - Dave Quote:- ViperGeek
- Post #609
- Forum: Portable Headphones, Earphones and In-Ear Monitors
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Audeze iSINE 10 & iSINE 20: Audeze releases two new IEM planar magnetic earphones
Possibly a silly question, but can the iSINE 10 and/or 20 be driven balanced? In a related question, does Audeze have any plans to offer a balanced cable, preferably terminated with an Astell&Kern-friendly 2.5mm balanced connector? I've got an XB10 that drives my LCD-4's (balanced)...- ViperGeek
- Post #602
- Forum: Portable Headphones, Earphones and In-Ear Monitors
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Audeze LCD-4
Then again, possibly not. According to: https://schiit.com/products/magni-2 The Magni 2 Uber puts out 1.2W at 50Ω and only 320mW at 300Ω. According to: https://www.audeze.com/products/lcd-collection/lcd-4 (scroll down to "specifications") Audeze recommends 1-4W into...- ViperGeek
- Post #4,676
- Forum: High-end Audio Forum
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Audeze LCD-4
When I upgraded from the LCD-2 to LCD-4, I was able to simply dial up the power/volume and enjoy the new power-hungry headphones. Out of my three amps, it: exceeded the headroom of my transportable Grace m9XX (single-ended) caused me to increase the volume from 60 to 80 on my...- ViperGeek
- Post #4,675
- Forum: High-end Audio Forum