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  1. #1
    Music Junkie E-Stat's Avatar
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    Quote Originally Posted by 3db
    Thats SS in every sense of the word.
    A few, yes. My Threshold has 32 outputs. Most SS amps, however, do not. Certainly not pro amps.

    Quote Originally Posted by 3db
    No tubes here? Where are you gettign that tube amps are better for electrostatic loudspeakers?
    They are voltage amps. I used tube direct drive amps with my Acoustats back in the mid 70s. They drove the 3k stators directly.

    Quote Originally Posted by 3db
    You've stated that power wasn't the only factor in driving reactive loads. It turns out that I'm correct after all becuase this is exactly what this article is pushing.
    No, that is not the only factor. There are some low powered amps with high current stages that work equally well. Here's a low powered amp that is well suited to reactive loads: First Watt F5 No, you still do not understand the challenge posed by reactive loads. Do some research on the topic. I've had thirty years. You've spent thirty minutes.

    Quote Originally Posted by 3db
    Also, from teh desciption, it sounds like this amplifier is a class D or equivalent amp but not your classic classAB or class A amp.
    Look again.

    rw
    Last edited by E-Stat; 05-25-2009 at 12:15 PM.

  2. #2
    3db
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    Quote Originally Posted by E-Stat
    A few, yes. My Threshold has 32 outputs. Most SS amps, however, do not. Certainly not pro amps.


    They are voltage amps. I used tube direct drive amps with my Acoustats back in the mid 70s. They drove the 3k stators directly.


    No, that is not the only factor. There are some low powered amps with high current stages that work equally well. Here's a low powered amp that is well suited to reactive loads: First Watt F5 No, you still do not understand the challenge posed by reactive loads. Do some research on the topic. I've had thirty years. You've spent thirty minutes.


    Look again.

    rw
    Power doesn't imply voltage only nor did I allude to that. Its a product of both. The best amplifliers are those that are able to supply the current to demanding loads such as your low voltage hi current drive amps that you are suggested.

    The article you first referred to me had errors in. Conventional speakers are not mostly resistive. There is the voice coil in the seaker itself, a coil and some capacitors in the filters which gives you an impedance which changes with frequency. Resistive it is not. He incorreclty over simplified that because there are some conventional speakers that have phase angles which are quite large, not as bad as electrostats but bad enough to eliminate them as mostly resistive. So the basic premise of him simply glossing over conventional speakers and lumping them as mostly resistive is wrong by any text book definition of the word.

    Your smugness, lack of proffesionalism, and arrogance is most unbecomming for a site moderator. I'm an electrical engineeer and I'm very well aware of reactance. Whats your degree in? Put downs?

  3. #3
    Music Junkie E-Stat's Avatar
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    Quote Originally Posted by 3db
    Power doesn't imply voltage only nor did I allude to that.
    What you said was that a powerful SS amp would work. Some do, some do not depending upon their ability to drive reactive loads. My thirty years of using electrostatic speakers has found many that do not work well. What is your opinion based upon?

    Quote Originally Posted by 3db
    The article you first referred to me had errors in.
    Since you were unfamiliar with the concept of reactance, I thought that would be a start for you. I will repeat my suggestion that you do some more research on your own if you really wish to understand the challenge.

    Quote Originally Posted by 3db
    Conventional speakers are not mostly resistive.
    That depends upon your perspective. Since electrostats are essentially capacitors, they are indeed very different from dynamic drivers which are primarily resistive.

    Quote Originally Posted by 3db
    Your smugness, lack of proffesionalism (sic)...
    I retired my mod duties. You never answered my question as to how many amplifiers YOU HAVE experimented with on electrostatic speakers. You never answered my question as to how many amplifiers you have designed. College textbook answers frequently differ from the real world as experienced by engineers who actually work in this field.

    rw

  4. #4
    3db
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    Quote Originally Posted by E-Stat
    What you said was that a powerful SS amp would work. Some do, some do not depending upon their ability to drive reactive loads. My thirty years of using electrostatic speakers has found many that do not work well. What is your opinion based upon?


    Since you were unfamiliar with the concept of reactance, I thought that would be a start for you. I will repeat my suggestion that you do some more research on your own if you really wish to understand the challenge.


    That depends upon your perspective. Since electrostats are essentially capacitors, they are indeed very different from dynamic drivers which are primarily resistive.


    I retired my mod duties. You never answered my question as to how many amplifiers YOU HAVE experimented with on electrostatic speakers. You never answered my question as to how many amplifiers you have designed. College textbook answers frequently differ from the real world as experienced by engineers who actually work in this field.

    rw
    I have studied reactive components and have used motors in series with circuits to bring the power factor back to a value of 1. Unlike you who have found it emperically, I've studied the effects of reactance and very well versed in the principles of impedance.

    Whats your degree in?

  5. #5
    Music Junkie E-Stat's Avatar
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    Quote Originally Posted by 3db
    I have studied reactive components and have used motors in series with circuits to bring the power factor back to a value of 1.
    Motors? How do they sound driving electrostats?

    Quote Originally Posted by 3db
    Unlike you who have found it emperically (sic), I've studied the effects of reactance and very well versed in the principles of impedance.
    Using motors.

    Quote Originally Posted by 3db
    Whats your degree in?
    IT. Thanks for finally answering my question.

    rw
    Last edited by E-Stat; 05-27-2009 at 01:28 PM.

  6. #6
    3db
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    Quote Originally Posted by E-Stat
    Motors? How do they sound driving electrostats?


    Using motors.


    IT. Thanks for finally answering my question.

    rw
    I'm also in IT and I can't where an IT person would care about impedancee and electrical principles, signal propagation theorey, amplfier design, semiconductor maetrials even come into play when everything is rolled out of a box. I have studied all of that and more so please don't spout your unqualified opinions of impedance on me again. Its wasting my time.

  7. #7
    Music Junkie E-Stat's Avatar
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    Quote Originally Posted by 3db
    I'm also in IT and I can't where an IT person would care about impedancee and electrical principles, signal propagation theorey, amplfier design...
    Simple. I'll explain it to you. I have been a music lover for nearly forty years. Since I was first exposed to the coherency and purity of electrostats in 1976, I have owned and enjoyed many of them. Such a relationship has required that I spend time finding amplifiers that work well driving them. Many do not. I'm certainly not talking about *motors*.

    Quote Originally Posted by 3db
    so please don't spout your unqualified opinions of impedance on me again. Its wasting my time.
    You continue to forget the topic. It's about "reactance". What I "spout" is common knowledge for those who actually work in the audio industry.

    rw

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