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Primare Knob

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About Primare Knob

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  1. That's another way of doing things. As long as the wall can flex/move it will perform the same function. But resilient clips a more about minimising the contact area of the internal structure with an external structure, and minimising the transfer of sound waves. Some clips also have a rubber mounting point which can flex. But a sheet of gyprock and a sheet of plywood could en up being a to big of a mass to move. Any barrier that can flex or move will produce similar results to green glue and turn kinetic energy into heat. In the end it is about what is practical to apply and cost effective.
  2. The only function of the green glue, beside sticking things together is to become a flexible barrier. Kinetic energy will hid the gyprock and the flexible green glue will absorb that energy and turn it into heat. Hence the low frequency absorption of the green glue. If you use screws as well, the gyprock will be fixed to the plywood and you loose the flexibility the green is suppose to provide, making the green glue pointless.
  3. With bass problems, you have to move speakers and or listen position a lot to generate a difference. Doing this by ear is difficult. As a bare minimum you could use a pink or white noise LF signal on both speakers at the same time and walk around the room and map the spots that show the most stable reading. Room boundaries produce problems at 1/2, 1/4, 1/6 of the room dimensions and speakers needs to be placed in such a position to try and fix a problem, and seating positions need to be moved away from such dimensions. Try and find out which arrangement gives you the least nulls/dips, as those can't really be EQ-ed. Peaks are easier to deal with using EQ. Have you tried a non semitrical setup? As that can help dealing with near room boundaries that are speaker-wall related.
  4. I am not ready for a digital wife yet. I find dealing with an analogue one, is complicated enough for me.
  5. I really don't care for music and only chase sound. If the sound is good, the music sounds good, even music I don't like. Isn't that a great way to stay open minded?
  6. I don't understand this, you turn on the power, press play and things start to happen. Pretty simple, or am I skipping some steps?
  7. Ok, I have checked the mains voltage with a multimeter, and it measured close to what the plug in power meter is reading. Which would suggest that it is reliable, which would mean that I don't have an over voltage problem at home. The big question would than be; What the heck is going on then? Hooked up to the step down of Carrey, it definitely did not hum.
  8. Thanks all for your comments. The voltage on the rails I believe has been tested as it roughly measured 1.5-2 Volts more with 250 volts. I think the the voltage measured was less than 50Volts and the caps are rated for 80Volt, but showed some signs of bulging. Whether or not it is really necessary, it can't hurt to have them replaced for not to much money, and the amps are still in his care. The humming definitely wasn't there with his stepdown transformer in place. I am thinking about hooking the whole home cinema up to a step down transformer or something like a regenerator, as they can usually function as a small step down transformer as well I believe. Carrey showed me something he made himself, that you put inbetween, and that drops the voltage by 12Volts without a transformer. Looking into something that can handle the whole cinema setup, preferably something up to 15amps as I haven't been able to trigger the circuit fuse switch.
  9. I went to Garrey Cawsey who did a quick checkup of the amps. Luckily the amps are well designed within proper specifications, and suprisingly didn't hum or buzz. Garrey is using some sort of step down transformer, down to 230V. When unplugged and straight from the mains, 250V according to Garrey, the humming and buzzing was back again. He still advised to replace the caps though. So it seems that my place, and most of Melbourne and surroundings has to high a voltage.
  10. Is this something that can be fixed, and are the capacitors the only things that are starting to fail? When proceeding with the repair path, is there any merit in upgrade parts? Trying to figure out what cost I might be to get it fixed. I can only find Nichicon capacitors at $20USD each that show the same values as the Rubycon, or Mundorf for $45 each.
  11. I have been told that the filter capacitors on the Parasound could be failing and leaking voltage, which causes the transformer and speakers to hum, due to Parasound not always adjusting the design for the Australian market. A bit of research shows that this could be a likely scenario. The amp has 4 Rubycon 10.000uF 80V capacitors 85C degree rated. It's a bit sad to see that failing after 5 years. Don't know how high a voltage could lead to such a short lifespan. I assume that a higher grid voltage is generating a higher output voltage at the transformer.
  12. Nothing else is connected to the amplifier, and the speakers are AudioPhysics Tempo, no active components. I can only hear it with my ear at the speakers. I am getting a bit paranoid.
  13. Does someone have good idea about why something similar is also happening on my PrimaLuna amp? With the PrimaLuna integrated amp with nothing connected to it, or connected in the same extension board I can hear a humming on the speakers, and perhaps very very faintly on the amp. When I switch the amp to the HT input, making the amp essentially a power amp, the humming changes to a buzzing on the speakers. All my gear is less than 5 years old, and I don't understand why or where it starts to fail. My fridge is rather noisy and loud too, but isn't the culprit. My volt metre is showing 240V at the moment.
  14. I have tested the amp at my friends place today, and the amp was still buzzing. At least this is provably easier to fix, than troubleshooting than the power grid. Anyone know a good repair place in Victoria?
  15. That would actually be a better test to see if it is an external problem or not. I would have to do this with a different power grid than going to the neighbours.
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