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Posts by alphaman

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.
Does the C4  feature variable vol. for LO?   I've had the Colorfly CK4 DAP for a few years. It has VARIABLE vol. for LO. I think vol. is controlled INSIDE the Cirrus DAC chip.    I used to operate LO with vol. at max. That's what's normally suggested. Then, I began experimenting and found that SQ improved SIGNIFICANTLY (for most subjective perceptions) when I reduced LO vol. I finally settled on about 2/3 (66%). That forces me to use the FULL range of my external...
Are you referring to the standard SSMH? In #6561, Goobley brought in the MiniMax (with its CCS tweak) into the discussion . So that's what I was kinda comparing the Borbely to.     IAC ... your point-by-point contrasts are good. However, I was largely referring to semantics and nomenclature used to generically describe BOTH amps, which is why I used quotations in #6567's remark: The amps ain't THAT different in that both are "vacuum tube and discrete solid state hybrid...
Sorry for just getting around to replying to your reply ;) The amps ain't THAT different in that both are "vacuum tube and discrete solid state hybrid headphone amplifier[s]" About that diode ... my bad on stating that being the ONLY part needed for a drop-in type CCS upgrade for the MSSH -- and YOUR bad for not noticing that :) Specifically ... if you look at the  the Borbely ckt you'll note two addit. transistors and three Rs  (Q4, Q5,R11/12/13 )., sorta similar to...
General comments about mark2410's review style:   Pros: Good product selection (ie., when compared to plethora of new junk released, mark2410 grabs the real goodies) Good photography   Cons: No bulleted intro/summary -- important info like price, main features, dimensions, and manuf. web links should be FIRST -- in bullets -- and later expanded in that order later (see 1, 2 below) Too long (see 1, 2 below) Not written/stylized for the web...
Oh ... okay, I finally got iRiver's branding strategy.... Barbie Astell and Ken Kern .... toys!!    Looks like Barbie doll never got hitched ... even after all these years ... marriage is so overrated, anyway.
I haven't seen a schematic for the Bottlehead Crack .And while that is a different style of tube amp than MSSH, I did note that Bottlehead offers a CCS upgrade called "Speedball" for the 12AU7 section: http://www.bottlehead.com/store.php/products/speedball-upgrade-for-crack-amplifier   Will it work with the 12AU7 SSMH variant?   EDIT: Here's the C4S Camille Cascode Constant Current Source kit: http://www.bottlehead.com/et/adobespc/C4S/c4s_kit.htm ... it's an LED-based CCS...
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