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hollowman hollowman is offline

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  • Last Activity: 26th May 2017 09:41 AM
  • Join Date: 11th January 2007


View hollowman's BlogRecent Entries
Latest Blog Entry

Posted 30th August 2015 at 10:45 AM by hollowman Comments 5
Posted in Uncategorized
Schiit's $2300 Yggdrasil D/A processor ...
link's what Schiit claims on their product page:

21 Bits, No Guessing: Mission-Critical D/A Technology
When doctors are trying to diagnose whether you have gas or cancer from MRI results, or when the military is trying to ensure a missile hits an ammo dump and not a nunnery next door, they don’t use “24 bit” or “32 bit” delta-sigma D/A converters. Instead, they rely on precision, multibit ladder DACs, like the Analog Devices AD5791. This allows them the bit-perfect precision they need for critical applications, rather than the guesswork of a delta-sigma. We chose this same critical technology for Yggdrasil. Following these unique D/A converters are sophisticated discrete JFET buffers and summers.
To their credit, Schiit also uses the same AD DAC in their $600 "gungnir-multibit" D/A processor:

Just in terms of DigiKey pricing, the DAC chip is not cheap ($15...

Posted 15th June 2015 at 09:47 AM by hollowman Comments 6
Posted in Uncategorized

Supposedly, Astell and Kern are using this in their latest AK-380 high-end/high-$ DAP:

I proto'd this DAC recently (along with AKM's new premium ADC)....what can I say ... I'm floored! This is the best digital I've ever heard to date.

Some hold-outs of antiquated multi-bit DAC religiosity may never be able to step outta their cognitive dissonance -- or warm-fuzzy nostalgia -- 'cause of their loss of virginity with their first loves (= classic R2R multi-bit) oh G A W D ... memories are so precious ... man -- I'm lookin' at my Philips CD650 and gettin' misty-eyed ....WAKE UP DUDE!!!
Folks, this is 2015 and technology does EVENTUALLY improve (tho', it takes time and is often 3 steps fwd, 2 back).

Unless Philips decides to revamp their TDA or SAA lines, AKM's your ticket ... or...

Posted 8th June 2014 at 05:59 AM by hollowman Comments 0
Posted in Uncategorized
The popular YouTube channel hosted by Dave L. Jones (Sidney, Australia bloke) just released his latest episode:

EEVblog #626 - Ceramic Capacitor Voltage Dependency

Of course some of DIYA's know-it-all will claim that this is not new info at all ... well if all you do DIY-audio and tweak and breadboard (and you've gotta lab bench in the little engineer's room ... so you can defecate-n-DIY at the same time) ... well, I suppose you really must know it ALL.

Posted 5th June 2014 at 03:37 PM by hollowman Comments 1
Posted in Uncategorized
For those of you not familiar with the USA book scene ... yellow-cover "...for Dummies" series has been one of the most successful (=popular/best-selling) book series in U.S. history.

It was so popular that the style was copied by several other publishers' series including:
"...for Complete Idiots".
The term "idiot" or "Dummies" is used as hyperbole in claiming ensured comprehension. The approach relies on explaining a topic via very basic terminology.

But that is not subject of this Blog post ... so stay tuned for a bit... I've gotta take a dump...

...and need a cup o' tea, love ...


Posted 1st June 2014 at 05:02 AM by hollowman Comments 2
Posted in Uncategorized
I've posted several topics on DIYA over the past few mos. All of them -- almost predictably now it seems -- dissolve into non-issues. I.e., not a lot of outside-the-box thinking ... methinks
Most of my "DIY" time is now on non-English sites like and a few sites from Asia.
While the language barrier is large, and all I can do is read (just barely) using Google Translate, etc., -- and can't really post -- these obstacles seem worth the bennies. Namely, modding or building-from-scratch very inexpensive projects.
Many of the members of these non-English forums seem younger ... so maybe more fresh ideas, with more zest to experiment, and members seem to be genuinely cash-strapped (unlike the English-based forums) ... so the economies-of-scale are a lot bigger.
Comparatively, the English-speaking-forum "DIYers", being older, have their bank accounts and retirement incomes ... and, hence, a lot of drive/passion are diminished ......
Recent Comments
I'm sure it sounds decent,...
Posted 30th August 2015 at 11:03 PM by abraxalito abraxalito is offline
As I noted, those chips...
Posted 30th August 2015 at 03:34 PM by hollowman hollowman is offline
Forlorn hope - without...
Posted 30th August 2015 at 01:27 PM by abraxalito abraxalito is offline
Yeah, you're right ...and...
Posted 30th August 2015 at 12:50 PM by hollowman hollowman is offline
The gugnir-multibit...
Posted 30th August 2015 at 12:28 PM by abraxalito abraxalito is offline
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