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amb/linuxworks table photos from headfi meet, feb 2011

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amb/linuxworks table photos from headfi meet, feb 2011

Postby linux-works » February 20th, 2011, 11:02 am

this is what we brought to yesterday's head-fi meet:

Image

Image

Image


didn't really take many other pics. almost all my time was spent hanging out at our tables and having some nice long conversations between short equipment demos. in particular, one guy from dolby labs was having a good time enjoying amb's b22 and hd600/hd800 setup ;)

of course, on the day that everyone brings super expensive gear to a meet - it rained. ;)
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Re: amb/linuxworks table photos from headfi meet, feb 2011

Postby amb » February 20th, 2011, 12:05 pm

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Re: amb/linuxworks table photos from headfi meet, feb 2011

Postby digger945 » February 20th, 2011, 1:45 pm

I'de pay to see a pic of Ti listening to a tube amp.
:)
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Re: amb/linuxworks table photos from headfi meet, feb 2011

Postby bcg27 » February 20th, 2011, 1:48 pm

Cool pictures, looks like there was a lot of nice equipment at the meet. What did you think of the new orthos if you got a chance to hear them?
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Re: amb/linuxworks table photos from headfi meet, feb 2011

Postby Shaman » February 20th, 2011, 2:04 pm

Good job guys! Holding our breath for LCDuino's release.. :p
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Re: amb/linuxworks table photos from headfi meet, feb 2011

Postby DorkVader » February 20th, 2011, 2:30 pm

Are those D2000s, Linux_Works? Also, what's the thing with the molex (?) connectors (and, are those relays?) in the back of the last 2 pictures?

I think this is an interesting setup
http://www.ibiblio.org/tkan/audio/headf ... c03124.jpg
It looks like three alpha20 boards with a sigma22 powersupply.

And YBM/rockcod's Beta22 looks excellent. His M3 isn't bad either.
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Re: amb/linuxworks table photos from headfi meet, feb 2011

Postby linux-works » February 20th, 2011, 2:50 pm

DorkVader wrote:Are those D2000s, Linux_Works? Also, what's the thing with the molex (?) connectors (and, are those relays?) in the back of the last 2 pictures?


yes, denon d2000. very nice match with the a20 buffers.


the molex/relay thing is SPINmaster ;)

http://blog.makezine.com/archive/2010/0 ... d-dis.html

and

http://hackaday.com/2010/02/05/pre-spun-hard-drives/
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Re: amb/linuxworks table photos from headfi meet, feb 2011

Postby linux-works » February 20th, 2011, 3:00 pm

Shaman wrote:Good job guys! Holding our breath for LCDuino's release.. :p


we're really close ;)

for the meet, we were able to pack in a lot of functionality into the lcduino system, but we also ran into max program size limits (used up all available flash ram space which holds the program and init-data). we used to have max-ram problems (not enough runtime mem) but now we're at max-flash. flash, on the 328 series arduino chip is 32k and at about 10,000-12,000 lines of c++ code, you are at max flash size. now the exercise is to shrink some things down or trim space here and there, fix a few more bugs and then it will be ready to release.

in the last few weeks, a new 'gui' was added that gives you over 16 pages (screens) of customizable info. that kind of pushed us into 'max flash' limit with extra c++ code and data structure based gui engine. but I think it was worth it, as you now can customize all the 8 port names, the 2 lines of 'splash screen' that happen on power-up, various timer values and run time constants, power-on amp delay time, number of delta1/delta2 boards installed, lcd min/max brightness and fade mode, min/max volume level, # of installed relays and 'native' step/size and so on. that was a huge step forward in usability and customization ability and we really didn't want to release the lcduino unless it had at least some basic settable things that did not require code editing and re-build/re-flash. very few things (if any) should require anyone to have to touch the code or re-flash or even have the $20 development/download cable.

a little more time for cleanup, code space reduction and testing and we'll be ready for release.
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Re: amb/linuxworks table photos from headfi meet, feb 2011

Postby linux-works » February 20th, 2011, 3:05 pm

bcg27 wrote:Cool pictures, looks like there was a lot of nice equipment at the meet. What did you think of the new orthos if you got a chance to hear them?


neko audio (next to me) had the lcd2 phones. I liked them. their build quality looked 'ok' but not super strong. they are also expensive. I did like the sound and I'd pay good money for them, but not nearly what they are asking for. I'm not even sure I'd pay half of what they are asking for - I just don't see why these things should cost that much. but I'd love to own them; they sounded very nice indeed! can't fault their sound. I tried them for just a few minutes on the a10/a20 system I have and even though those buffers are 'modest' I could tell the lcd2 was a good sounding set of phones.

I also liked the lcd1 sound when I heard those last year, too.
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Re: amb/linuxworks table photos from headfi meet, feb 2011

Postby linux-works » February 20th, 2011, 3:09 pm

DorkVader wrote:
I think this is an interesting setup
http://www.ibiblio.org/tkan/audio/headf ... c03124.jpg
It looks like three alpha20 boards with a sigma22 powersupply.


it does look like that's it. I had a laugh when I saw that and wondered if I had built it, it looks so much like what I'd do ;) ;)

the meet was filled with 'over the top' builds and everyone was ooh-ing and aaah-ing over physically big builds; but I happen to think "less is more" when it comes to audio. 'big' does not impress me, to be honest; and in fact, seems sloppy in an engineering context. and so, yes, I really liked that triple decker a20+s22 on plexi build ;)
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