Recent content by March Audio

  1. March Audio

    Did you audition nc500 vs nc500mp or nc502"

    You can use REW to measure amps electrically no problem. However when using a microphone in a room you wouldnt get very accurate data
  2. March Audio

    Did you audition nc500 vs nc500mp or nc502"

    Here is the data. The THD + N does not rise with frequency. NC500 NC502MP
  3. March Audio

    March Audio P701 Mono Block Power Amp

    Hi @AnLaoJin As mentioned below is the THD+N data for the NC1200 and NC2K NC1200 NC2K To explain the graphs, they depict the ratio of total harmonic distortion and noise to the output signal. At lower power outputs noise is the dominant factor. As power output and the output signal...
  4. March Audio

    VTV Amplifier - Terrible Quality Build and Customer Service

    Sorry Pierre but I have to correct you there. Whilst the modules effectively become more efficient at higher power levels (more about the idle losses rather than any increase in actual efficiency) the heat dissipation still increases. Please refer to the left hand graph below for the nc500...
  5. March Audio

    March Audio P701 Mono Block Power Amp

    Hi @AnLaoJin May I ask what speakers you are using? Very few domestic speakers will handle the 2.5kW the nc2k is capable of delivering into 4 ohms. There is no basis to presume any amplifier will give best performance at 50% power. I will post the THD+Noise plots for the nc1200 and nc2k...
  6. March Audio

    Double Blind tests *did* show amplifiers to sound different

    Its really not that difficult to at least; 1. Match volumes accurately 2. Not know what product you are listening to. If people did that then they would be taken seriously with their input. Just go over to somewhere like Whats Best forum to see the amount of complete drivel some people talk...
  7. March Audio

    Double Blind tests *did* show amplifiers to sound different

    We were talking about amplifiers sounding different as an unpopular opinion in this forum, not how difficult it is to do a comparison. I see very little of the "everything sounds the same" view, I do see a lot of "come back when you have tested it properly"
  8. March Audio

    Double Blind tests *did* show amplifiers to sound different

    It's not popular simply for the reason that you know with almost 100% certainty the comparison would have been sighted uncontrolled and therefore faulty. There are indeed good reasons why amps can sound different, just look at the frequency response of a valve amp with a real reactive speaker...
  9. March Audio

    Double Blind tests *did* show amplifiers to sound different

    Then you have missed the point. The differences in electronics are often small, often so small that when evaluated under controlled conditions they can't be heard. Amir and SIY know this precisely because they listen to equipment but don't fool themselves with sighted uncontrolled comparisons...
  10. March Audio

    VTV Amplifier - Terrible Quality Build and Customer Service

    Hi @echopraxia If you are interested I am sure we can come to some arrangement to rebuild the units. You could send me the PSU and amp modules and I can rebuild into our cases.
  11. March Audio

    PS Audio M700 Monoblock Amplifier Review

    Well obviously domestic 110V systems have their limitations ;) Not sure about those output inductors being pressed up against the steel base plate......
  12. March Audio

    PS Audio M700 Monoblock Amplifier Review

    :) Actually I have had a couple of requests recently regarding making amps with the Hypex NC2K module which can manage 2.5kW into 4 ohms. I have had to politely ask "are you really sure you want or need that" :)
  13. March Audio

    Double Blind tests *did* show amplifiers to sound different

    There is plenty of technical commentary here, but you are right some keep coming here trying to convince people that measurements tell us nothing and sighted uncontrolled listening does. It is indeed tedious. Again you are missing the point. If you are under the impression that people here...
  14. March Audio

    VTV Amplifier - Terrible Quality Build and Customer Service

    :) I just tell it like it is, very much Doc Martin style. I appreciate some find that confronting ;) but life is too short.
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