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hochopeper

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hochopeper last won the day on October 7 2014

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About hochopeper

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    She'll be right

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    QLD
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    Aus

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  1. hochopeper

    Multimeters?

    I did get it. Unfortunately I really haven't had much time for diy electronics this year so I'm not best placed to give opinion on that. The eevblog forum has threads for people with issues with it and discussion on the meter (see the stickies in this subforum - https://www.eevblog.com/forum/testgear/) I do like that they are actively fixing/improving things and new firmware being released (although that could be seen both ways - depending on your use case)
  2. hochopeper

    Twin 15" subwoofer

    You've been saying that for a while Dave, I have only ever made it to the annual event at the Jones residence for an afternoon a few years ago - it's worth it! 😎
  3. hochopeper

    Advice on building a quality Class A/B amp.

    I've got a Aussie Amps 6ch amp (when he did 3ch of the nxv100 on one PCB) powered by a coldamps SMPS, works well. I've got another diy amp (called 'the wire class ab' with lme49830 and lateral MOSFETs) that has regulated SMPS powering each channel. The SMPS risk is that when one fails, it's harder to repair than a linear power supply. I've had one fail and happened to have a guy local selling some that he had bought from the same group buy. It's far from ideal as now the vendor is out of business but I have a spare. If I was building an amp to the specs you're after I'd look at the modulus 686 https://www.neurochrome.com/product/modulus-686-2/ with either their meanwell controll boards and meanwell smps or a connex SMPS. I'd lean toward meanwell for the simple fact that I can be more confident of finding replacements when stuff goes wrong. The cost of that combo isn't cheap though. Honestly diy high power class ab is always going to be difficult to do well for cheap. At least with the neurochrome stuff I can see measurements and know that I can verify the build performance with some soundcard measurements of my own, which to me would be worth the $$ although I know some in diy circles struggle with the idea to pay more than PCB manufacturing costs for a PCB. Chris
  4. hochopeper

    Siegfried Linkwitz

    Passed away in the last day or so . Many tributes over at diyAudio - https://www.diyaudio.com/forums/in-memoriam/327275-rip-siegfried-linkwitz.html RIP Siegfried Linkwitz Some interesting talks from him at Burning Amp and other events - https://www.youtube.com/results?search_query=seigfried+linkwitz
  5. hochopeper

    Canare 4S11 Cable

    Got a link Dave?
  6. hochopeper

    Deep End DIY - My first speaker project

    Awesome! Our not quite 3yo daughter is all about Midnight Oil - Short Memory. Every time we go for a drive we simply must listen to it or we've got a mutiny on our hands.
  7. hochopeper

    Deep End DIY - My first speaker project

    Cool stuff Anthony! I think I mentioned this article to you before when discussing the topology for gain structure around passive line level crossover. Now that you're going to go down the turntable road, a read of this article - http://www.diyaudio.com/forums/diyaudio-com-articles/163570-masters-noise-thoroughly-modern-tube-phono-preamp.html - would be worthwhile IMO. The solution might not be to everyone's tastes (he's open about that) but the theory discussed (especially using balanced connection for connection to the cartridge) would be worth at least a read for background. I've spent most of my spare time lately renovating a bathroom, so I haven't had a chance to look more closely, do you mention anywhere in this thread which phono stages you're building?
  8. hochopeper

    Post some pics thread...

    Another bird from my trip to the Bunyas.
  9. hochopeper

    Post some pics thread...

    Just got back home from 5 days in the Bunya Mountains ... Eastern yellow robin Wedge tail eagle Two wedge tail eagles having a disagreement about who gets to play in this thermal.
  10. hochopeper

    "NEW" Speakers Under $500

    Behringer b2031 or b2030 would be where I would look in that price range.
  11. hochopeper

    Multimeters?

    Not long after this thread there was a new meter on kickstarter - probably not of immediate interest to Peter but I did forget to come back here and mention it - from the same guy that is selling the rebadged brymen that I linked at the time there is a new design meter he did in collaboration with UEI. I've got one coming in the next few weeks hopefully. Simultaneous voltage and current measurement. Wide bandwidth trueRMS. Low burden voltage on the current reading (important for accuracy in measuring small currents) and bluetooth. It will be my first step up from the ~$50 jaycar meters so I am really looking forward to it. It should have general availability in March I think once all the kick starter folks have their orders.
  12. hochopeper

    DIY audio: what are you building?

    Nelson Pass has posted a variation of the B1 preamp using it too http://www.diyaudio.com/forums/pass-labs/313612-b1-korg-triode.html
  13. If you were to import the drivers another option would be to try the http://www.linkwitzlab.com/LXmini/Introduction.htm If the amp you've got is actually a multichannel AV receiver you could use it to power those speakers (LX Mini has active crossover so needs separate amp for each speaker).
  14. Im not sure of the price for a Red Spade HE2 kit. Would be worth a chat to Paul Spencer though. http://www.redspade.com.au/audio/HE2.php
  15. hochopeper

    DIY audio: what are you building?

    R25 is optional for changing input sensitivity and C4 was a not required after the designer first built the test board and changed some of the cap values for filtering in the low pass filter. From the design files there is this diagram that shows what's going on with the board. DIY Audio project thread - http://www.diyaudio.com/forums/equipment-and-tools/176144-diy-project-measuring-noise-10hz-100khz-lna-1mhz-rms-dc-converter.html
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