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  1. DIY JBL Clones

    if the question is big waveguides.. the answer is yes..
  2. FS: RASPBERRY PI and DAC complete system

    Hi, I'll stick my hand up for this.. been meaning to upgrade my older R-pi2 based system to get proper wifi...
  3. DIY audio: what are you building?

    It's now deployed in the active system.. dead quiet when not playing when driving 98db efficient 15" woofers, 7.8W idle power use, so far so good....
  4. DIY audio: what are you building?

    The TPA3255 has a lot of "mod cons" like speaker protection already built into the chipset.
  5. DIY audio: what are you building?

    I've been pretty slack on the DIY audio front recently, partly because of a changing work situation giving me less free time, and partly because my house is already oversupplied with DIY audio gear so I dont need any more... But I was intrigued with the newish TI TPA3255 class D amp module, ordered one late last year and finally got around to firing it up in test mode in an old amp chassis with a 350W meanwell SMPS.. No serious listening yet but runs very quietly, if it plays well I'll use it to drive the 15" low frequency speakers in my active system. http://www.ti.com/tool/tpa3255evm p.s. @Snapper() that dead amp chassis you gave me finally got some use :-)
  6. I'm not sure if this is DIY section, computer section, or power / cables / electronics post, so I've plonked it here but it would fit elsewhere as well: I have been using older TP-Link AV200 "powerline" adapters for some years with great success to provide network access to a few locations where it was difficult or inconvenient to do it with wifi - although slow, they have been fast enough for the purpose at hand, and much more reliable than wifi. But the units have eventually failed after a few years, I think they run fairly hot despite their low power use, and perhaps in the garage on hot days they ran too hot which has accelerated their demise. So I purchased some newer TP-Link AV600 units to replace them - and they work great, even faster speed. BUT - I noticed a high pitched snarling, hissing sound in the left (but not so much right?) high frequency driver of my high efficiency, active crossover stereo system. The left tweeter is closest to the PC, although they are isolated from the playback system the cables do run close to the speaker wire. Unplugging the AV600 units and my system went back to its usual near silence. I haven't done any problem solving or tried re-arranging things yet, just interesting to report this - though not surprising that a networking system that works by injecting a signal into the mains electricity causes such audible issues. I did not have this issue with the older AV200 units. Or at least not audible to me.
  7. my initial post with the lineup was a quite coy about that, and I played very early, but still had a great time. For SNA gear head relevance I used my ATH-M50X headphones, played all FLAC, and it was the first "big gig" outing with my new-ish Pioneer DDJ-SB2 DJ controller :-)
  8. I always take earplugs to gigs.. although it's easier to adjust the volume at outdoor shows (by walking further back!) yes RSF was pretty loud in places, and I had my earplugs in quite a few times. I had a great time though the weather was challenging. I was fortunate enough to be one of the performers.. playing more ambient / chilled out music. Was good hearing "main stage" acid/techno in clear, loud, outdoor soundsystems with the laser lightshows, "how its supposed to sound".
  9. This years Rainbow Serpent Festival has a good lineup, I especially like the acts playing on the Market Stage https://www.rainbowserpent.net/the-market-stage The Chill zone stage lineup also ain't bad: https://www.rainbowserpent.net/chill-stage tickets are sold out though
  10. ..the Mr Bean on the roller coaster seems to be a recurring meme on bitcoin forums....
  11. Sam Dastyari

    Yeah, I'm guessing Andrew Robb would be amused at how badly Sam messed up an excercise that needed a bit more finesse to pull off smoothly... http://www.theage.com.au/national/investigations/liberal-andrew-robb-took-880k-china-job-as-soon-as-he-left-parliament-20170602-gwje3e.html
  12. Well spotted, the creator of bitcoin likened it to a commodity or collectible: Bitcoins have no dividend or potential future dividend, therefore not like a stock. More like a collectible or commodity. http://satoshi.nakamotoinstitute.org/posts/bitcointalk/427/ Intro paragraph of the Bitcoin white paper just below.. but I agree, if you don't understand it, don't use it. Commerce on the Internet has come to rely almost exclusively on financial institutions serving as trusted third parties to process electronic payments. While the system works well enough for most transactions, it still suffers from the inherent weaknesses of the trust based model. Completely non-reversible transactions are not really possible, since financial institutions cannot avoid mediating disputes. The cost of mediation increases transaction costs, limiting the minimum practical transaction size and cutting off the possibility for small casual transactions, and there is a broader cost in the loss of ability to make non-reversible payments for non-reversible services. With the possibility of reversal, the need for trust spreads. Merchants must be wary of their customers, hassling them for more information than they would otherwise need. A certain percentage of fraud is accepted as unavoidable. These costs and payment uncertainties can be avoided in person by using physical currency, but no mechanism exists to make payments over a communications channel without a trusted party. What is needed is an electronic payment system based on cryptographic proof instead of trust, allowing any two willing parties to transact directly with each other without the need for a trusted third party. Transactions that are computationally impractical to reverse would protect sellers from fraud, and routine escrow mechanisms could easily be implemented to protect buyers. In this paper, we propose a solution to the double-spending problem using a peer-to-peer distributed timestamp server to generate computational proof of the chronological order of transactions. The system is secure as long as honest nodes collectively control more CPU power than any cooperating group of attacker nodes. But I think the current "investment" (cough cough, chuckle) mania in bitcoin has become a bit removed from the original payment system method.. and most people have to deal (initially) with a bitcoin exchange who do all the annoying "third party" stuff the bitcoin founder wanted to avoid. In fact while hunting around for the half remembered "collectible" quote I found a site that archives the bitcoin founders posts, emails and papers, still probably the definitive source of the original hows and whys, and the non technical stuff quite clearly written: http://satoshi.nakamotoinstitute.org/
  13. Yes, btcmarkets is a local exchange (Melbourne) so you are seeing the trades done there, at what is probably the Aussie going rate. I'm just pointing out that it was online and working with trades happening after midnight. They do provide an API to get the info if you have an account. I have seen software that uses the API from this site: https://www.cryptocompare.com/ i.e. https://www.cryptocompare.com/api/ which aggregates a bunch of other exchanges via their APIs.. plus there would be the DIY approach of scripting the price from every exchange that lets you as well.
  14. I haven't gone through the whole 38 min vid but I think I get the gist!