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Posts by alphaman

Haven't went thru this whole thread...  ... anyone do a serious SOUND-QUALITY compare with T51/S:Flo2? My T51 is modded with x3's similar AD8397, but the T51 has two Wolfson WM8740 DACs. That T51 sounds quite a bit better than stock, and I got the AD8397 as a free sample from AD, and I can solder ;) Anyway, the x3 seems to have other things going for it ... like a more-modern (better?) decoder/DSP ... again, I'm only interested in sonics.   How do Fiio devices do...
justin or anyone ... I can't see most of the images from the OP. Can someone pls re-up or correct them? Thx.   About that foam baffle that couples the grouped microdriver set to the nozzle/waveguide...there seems to be some sort of sticky tape. Was this RE-USED for the final assembly. Yes: I'm having a tough time re-sealing that foam baffle to the nozzle! 
Thx for that info...but I want to take the shortest route: re-solder in new cables. I was thinking: cheap (but decent) WalMart IEMs or buds (e.g., Sony) ... snip off the drivers. The only concern is re-assembling the two-piece shell. Not sure what resin or glue held it together. I've read other's post how good a job Shure does with "resining in", and I had to undo much of that during disassembly. Also, and importantly, there is the final acoustic seal ... it seems to be...
Unclear as to why putative lower-quality ceramics are being exchanged for original/stock (which are decent-quality poly/film, albeit low-cost Chinese variety and not Panasonic or WIMA). Or did you o'scope stock vs. NP0 and noted improvements? Also, did you change (tweak) cap values to match replacement OPA, as originals were ideal for OPA2604?
Anyone know  the specific type of stock LPF  caps (in green frame in image below)...     They seem to be decent-quality plastic films (poly). I don't know what brand they are (some generic Chinese brand, I assume), but they look very similar to some high-quality Panasonic caps in my kit.      EDIT: The orig. Teclast sales literature notes: "CBB polypropylene filter capacitor". This seem to be pretty good IME. Modders seem to be replacing with Wima. Yes,...
Well, w357, earlier in this thread posted some very detailed and extensive tips for DIYing this device. The Strob/Hardcorist project is very good, too, and you don't need many special tools to complete a project. You will learn a lot and have much more satisfaction in the end. Of course, everyone has different priorities and time constraints. A word of caution: Like w357 notes, the T51 (and CK4, IME) are cheaply made and fragile. The T51 can be killed by little things...
Confused .... other than burnwaygta4, who are all others (at player.ru and elsewhere) offering (or have offered) mods for T51/Sflo2? "AlexMod" was mentioned but I can't find a "home" link for his mod page. Also Strob, Hardcorist, w357? Who are all these modders ... are they still active?   Used shoppers should avoid early sFlo2's -- very unreliable. So buy used, not new-old-stock -- either they stopped working after a few mos. after new, or they were the improved QC...
Just a quick post here for some much-needed advice/suggestions ....   I have a pair of Shure SE-530 in disassembled condition, as shown here (not my image, but looks same) (They were taken apart in order to replace that infamous "dry-rotting" Shure cable [see H-F archives for more on this]). The body/shell was carefully split--as shown above -- to expose their innards. That was some time ago as this is not an easy project -- one issue is finding proper...
In a way, changing LO volume is like EQing ... based on POTENTIAL hearing perception at diff. levels ... like "loudeness" freqs based on Fletcher-Munson. Being an illogical purist, I almost didn't buy the CK4 because of the non-defeatable LO vol. Now, I wish all my DAPs had it. E.g., in a fixed LO device like Teclast T-51/S:Flo 2--Nationite. Hmmm ...I suppose one could lower it in the T-51's -- which has relatively high LO --  by simultaneously lowering ALL bands in its...
Do you have any solid references for this, as your remark is to new me? Indeed, as noted prev., the general "rule" I've seen most often for portable or other device with var. LO vol., is 100%. My reporting of the 66% "optimal" is based only on my CK4, and that was after a bit of subjective experimentation. I think the incentive to try LO below 100% was a post (AudioAsylum??) on the CS4398 DAC, as used in Colorfly.
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