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Posts by alphaman

Well, folks, I'm going to take the plunge into sub-$100USD USB DACs, so help me decide...I'm leaning toward the hifimediy.com/U2-DAC because that manuf, has much better documentation than Stoner. Also, FWIW, hifimediy is avail on Amazon.I could be persuaded into opting for the UD120 if many of you suggest so. If not, my $$ is going to China, not Malaysia ;) Sorry ClieOS!!
Confused about the current status of this product.   Stoner has their own dedicated site (in addition to the old Blogspot): http://stoneracoustics.blogspot.com/ http://stoneracoustics.com/   Yet on the new site, I do not see the UD120. Is it still for sale? How does one order?   Finally, how does it compare to the latest similar-price USB "stick" DACs, like  http://hifimediy.com/U2-DAC
Okay, rec'd some dampers (filters) from Mouser.    Seems $$ have gone up: I paid a bit over $17USD for six (three x two pairs). This included S/H, but I live in the US so $6 S/H is steep!!!   Anyway, I ordered: Grey, White, Brown.  I've only tried the Brown and am very impressed! The SQ is better than stock and filterless.   Possibly, increase in clean and USABLE bass is the biggest improvement with the Browns.   Not sure why people report Shure's stock whites are...
Come on folks ... this one is a freebie! You don't need to buy anything. Just remove what you've got, have a listen, take some notes, and report back.  Important: the sound may require extended listening for critical evaluation.  As I've noted before, I almost sold my Earsonics SM3 v2 until I removed its filters (I've been running the SM3s filterless for over 4 yrs). A good question: "What about wax and other junk getting inside the IEM cavity?"Keep ears clean (a good idea...
Anyone running FILTERLESS?   Thoughts of filtered vs. filtered?   **Note that removing the filter not only removes the screen, but its can as well (increasing the inner diameter of the nozzle).
I don't know what that is -- but if it's this... http://www.head-fi.org/t/542894/grado-vent-mod or this..http://www.instructables.com/id/Grado-Headphone-Modification/step2/The-Venting-Mod/... forget it. I ain't takin' a heat gun to the thing, much less punch/poke some holes into any part of it.
Just dug out my orig. SR-80s.   New (cheap) eBay pads and I can use the cans again! (I was skeptical but found the Chinese eBay pads just as good as the 4x as costly OEMs from Amazon. I'm using std. L-pad/cushion).   Of my three Grados (others: HP1, SR-325i), the SR-80 are probably my faves. But their bright sound and uncomfort usually made me retreat to Senns or beyers.   Finally tried the tape mod.   Haven't  tried any other mod ... like different tape types, or...
I did comment (see above) on the (very likely) possibility that -- for $$ reasons -- manufs. do their TOP-END model layout/design first (the one with dual dacs, upsampling SRC chips, etc). For lower-end units, you'll  often see some PCB pads only (with certain components missing, or blank space). It's the same as major car manufs ... same chassis for Honda/Accura or Toyota/Lexus. EDIT: Not new to many of you but AK's new  top-line DAP, AK380, has two AKM AK4490 (DAC)...
..The S/N improvements for dual DAC topologies are in the chips' datasheet. It can be slightly measured in the lab, but subjective/listening tests are more important/revealing. No: modern DAC ICs don't draw that much current (even 192kHz files only tax a PCM1792 45mA max -- compare that to what device's LCD driver sucks). True, dual DACs create the need for additional components (mostly passives), but those current demands (and PCB footprint space)) are minimal.If a cheap...
Here's an example (PAW Gold)......only one PCM1792 used. An added PCM1792 -- plus a few extra components and slight re-arrangement of PCB components -- gets you important improvements in S/N, etc.Then again, the manufs/designers of these DAP ain't ignorant ... so added goodness (at pennies on the dollar) can go in the multi-$K "higher-end" DAPs. It's possible that two-DAC-chip design was thought up of FIRST. But then the CEOs and marketing dept. came in with other ideas...
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