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    Re: Go Figure... Tubes

    If you're dealing with heat from an amp, a simple way to move it is to have vents in the ceiling above the amp or amps. A bit of dryer ductwork and a slow speed fan can send it outside. A customer of...
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    Re: Speaker /amp incompatibility

    Hmm.
    What's the possibility that this isn't the amp at all? What if the suspension on the woofers failed? Apparently they are not brand-new. I can't think of a reason an amp would start behaving...
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    Re: Speaker /amp incompatibility

    I've not either, but I've no idea what is being used for reference. Some recordings have out of phase bass... but end the end I don't like to leave possible variables on the table. This sort of thing...
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    Re: Top brands that have no respect

    Actually its because the digital release is likely to be played not only on a phone but also a car. There's no expectation of that for the LP release, so a good producer will see to it that the LP...
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    Re: Speaker /amp incompatibility

    Normally I would agree- you make a change and things don't work right, maybe it has something to do with the change.

    However, if the change introduced a speaker out of phase, while most of the...
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    Re: Speaker /amp incompatibility

    Did you try reversing the phase on one speaker just to make sure your speakers are in phase?
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    Re: Lifespan of Capacitors

    No. I probably should have said 'any amplifier' but I surmised that this was in a solid state amp amp- and in a solid state amp there's no good reason for a cap to fail in such short order since they...
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    Re: Speaker /amp incompatibility

    Your description of the bass is a dead ringer for a standing wave in the room.

    The best way to fix that is with multiple subs. The Audiokinesis Swarm is intended specifically for this sort of...
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    Re: Lifespan of Capacitors

    Normally a cap of reasonable quality will go about 20 years even if there is heat (as long as there isn't too much heat).

    If these parts were in a solid state amp I'd be concerned. Caps in solid...
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    Re: What's surprised you gear or cable wise?

    My Classic Audio Loudspeaker T-3s employ the TAD 1602 drivers. Fo of 21Hz. They are in a bass reflex cabinet. As you probably know, a bass reflex allows for bandwidth below the Fo. So the speakers...
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    Re: What's surprised you gear or cable wise?

    I don't think I would want to go back from having easy to drive speakers. Mine are 98dB, 16 Ohms and flat to 20Hz, using field coil drivers (Classic Audio Loudspeakers T3). When I heard the first...
  12. Thread: Huh?

    by atmasphere
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    Re: Huh?

    We've done measurements of audio racks and platforms. They can have a very measurable effect on a system (reducing vibration by 10dB easily) if properly built and properly used. The measurement is...
  13. Thread: Huh?

    by atmasphere
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    Re: Huh?

    FWIW Dept.: Bob Worzella, the founder of Sound Anchors, using a lazer and mirrors placed on speaker cabinets, was able to show that the speakers vibrated less when mounted on his speaker stands.
    ...
  14. Re: Attention all Luxman 595 owners - What volume percentage does it switch from class a to class ab?

    The amp does not 'switch' between modes. It is more aptly described as a transition, one which you can't hear. Really. So don't worry about it. When you are pushing the amp hard to where is sounds...
  15. Re: Amps with a touch of warmth: Pass/Luxman/Antileon

    Certainly! Its taken over everywhere- high end is the only hold out, but even there class D has put all tube amp manufacturers on notice of being on borrowed time (whether they got that memo or not...
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    Re: The problems with testing/measuring

    This statement from the article is false.

    Its because of a lack of understanding how feedback works that it might cause an amplifier to sound sterile. Its not because of feedback itself as a...
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    Re: Amplifier Designed for KT150 Tubes

    I guess I've been in summer amp mode for several years, playing a set of class D amplifiers. I don't miss the tubes at all, and I'm used to playing triode power tubes.
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    Re: Amplifier Designed for KT150 Tubes

    No. I would expect the same parts inside. The glass looks nice though :D
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    Re: Amplifier Designed for KT150 Tubes

    Right now KT150s have been very difficult to get!

    I'd be curious to hear what you think of a decent set of KT88s in your amp. JJ makes a blue glass version that seems quite nice.
  20. Re: Question for the EE types about a SOLA Constant Voltage Transformer

    One large enough to run a decent sized system might, if attached to a proper tether, be effective at holding a small boat in place...
  21. Re: Can anyone hear when an Amp switches from Class A to A/B

    I can't and you personally can't either. That makes it more accurate. Thanks for the advice.
  22. Re: Question for the EE types about a SOLA Constant Voltage Transformer

    The output isn't sinusoidal. Harmonics of the line frequency exist; the 5th in particular can be quite pesky, causing power transformers to run hotter (and noisier), rectifiers to become more noisy...
  23. Re: Best Pure Musical Amplifiers (power not important)

    I was anti-feedback because I knew that the amount needed was more than could be applied to any circuit I knew of, tube or solid state. I've been of the opinion for a long time that rising distortion...
  24. Re: Can anyone hear when an Amp switches from Class A to A/B

    You won't be able to hear or measure the difference at the transition point unless there is a very obvious design flaw or malfunction. Think of it as a curve being grafted to a straight line- at...
  25. Re: Best Pure Musical Amplifiers (power not important)

    The qualifier you added here is certainly true! But there's no reason it could not be done again. The EV amplifier isn't bad.
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