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  1. johnc

    SpeakON cables and connectors

    Where is a good place to buy 4 pole SpeakON cables and connectors? I only need short cables (1m to 5m) so might be worth buying a long one, cutting it and buying extra connectors. Looking for something cost effective but with quality as good as that of the Neutrik connectors.
  2. johnc

    JHB AVF Bikers Whatsapp Group

    A forum is not the ideal platform to plan an event at relatively short notice. I'm creating a JHB AVF Bikers Whatsapp Group as a more effective way to plan riding event(s). Please send me your phone number via PM if you want to join the group.
  3. johnc

    Where to buy sewing machine oil?

    Anyone know where I can buy some sewing machine oil?
  4. johnc

    Been using TP-Link MR3420 for years... now need adsl

    Hi All Looking for some advice here... For a long time I have been using 3G for internet and now it is time to move over  to ADSL. The TP-Link MR3420 has served me well and I wouldn't mind continuing with it, but then I would need and ADSL modem to connect to it. On the other hand, I could buy...
  5. johnc

    potential avatar for sh!tstirrer

    found by accident, of course...
  6. johnc

    ?30V opamp suitable for preamp?

    Can anyone recommend a reasonably priced opamp that can work well with a ?30V supply suitable for active crossovers?
  7. johnc

    My quickest project yet

    This weekend, I gave my car a long overdue upgrade. I replaced this: and With this: Phineas decided he wanted to be in the photo so I thought I would leave him there. The result: A few words on the Fane 8-225... I bought it because it is quite efficient, relatively cheap...
  8. johnc

    Sampling Question

    Can someone explain how it is possible to reconstruct an audio signal accurately provided the frequencies therein are no greater than half the sampling frequency? I understand about aliasing but there is another problem. Consider the graph below. For simplicity, let's assume the signal is a...
  9. johnc

    My 1st HE build (Beyma)

    I haven't completely given up on a Beyma kit but will go ahead with this build for now. I might recycle the drivers if the kit does materialise. With this in mind (and that I blew the budget on drivers alone) I am trying not to spend to much on cabinets etc. This will be a stereo set made up of...
  10. johnc

    Nice Foobar Crossover Plugin...

    ...for those of us who spent all our money on drivers.  :whistler: http://xover.sourceforge.net/
  11. johnc

    Beyma 2.5 Way TQWT Kit - Interest Poll

    Ian and I have spent some time discussing the possibility of developing a kit using Beyma 12P80Nd and TPL-150H drivers. The design goal is to end up with a pair of very high quality passive speakers while keeping an eye on costs. Perhaps we can think of it as a scaled down version of Ian's...
  12. johnc

    Using bass reflex to combat poor room acoustics

    I recently bought a pair of Beyma 12P80Nd drivers for my first HE build. Sensitivity Frequency range Voice coil diameter BL factor Moving mass Voice coil length Air gap height X damage (peak to peak) Resonant frequency, fs Mechanical Quality Factor, Qms Electrical Quality Factor, Qes Total...
  13. johnc

    Where are Beyma drivers made?

    :thinking:
  14. johnc

    Port Flares

    Where can one buy port flares in gauteng?
  15. johnc

    Design choices for subwoofers

    Not that I would resort to using a bass reflex enclosure... but I did observe the same thing when fiddling with WinISD. Ian, what do you do with these parameters? I would imagine you have compared simulation with reality and found sensible values to use.
  16. johnc

    ASIO

    ??? How do you enable ASIO? Info in the Xonar audio center states ASIO 2.0.0.07 but there is no further information. I have the foobar plugin for ASIO but i don't know what it does or if it is working. I read somewhere that it reduces latency, which appears to be a problem in Speaker...
  17. johnc

    sound vs graphics priorities

    I'm using a cheap old computer with Windows 7 and have recently bought a 1920x1080 monitor. I have one problem when running at 1920x1080. The sound gets stuffed up when I scroll down scroll through my playlist in foobar. It appears that the graphics card has priority. When I set the resolution...
  18. johnc

    Asus Xonar Essence ST vs STX

    The main difference I can see is that the ST is PCI while the STX is PCI Express. The potential problem is the my PCI express slot is immediately next to the video card. If the Xonar even fits in, is there a possibility of the video card interfering electromagnetically? On the other hand, the...
  19. johnc

    Pest control for peaches

    We have a peach tree that produces good fruit every year but the peaches usually end up full of worms. What is the best way to protect the peaches from pests?
  20. johnc

    Recommended finish for a Maple table ?

    Thank you to those who have already offered some advice concerning this. :) ??? <=== This is me. I am in the process of building a maple dining room table and would appreciate some more advice from those of you who know a bit (or a lot) about finishing. 1. I refuse to spray. I would like to...
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