News. Three-band repeater with a crossover in the economy class A. - diyAudio
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Old 26th February 2014, 06:40 PM   #1
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Default News. Three-band repeater with a crossover in the economy class A.

Hi colleagues. I would like to discuss with you a new type of output stages.
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Old 26th February 2014, 06:52 PM   #2
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So you put the crossovers right before the output buffer stage?

I see no benefit, and a few major drawbacks, to this. Perhaps you could explain the benefits or what I'm missing.
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Old 26th February 2014, 07:51 PM   #3
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A standard solution will require three monoblock. Crossover. Three interconnect cable. In stereo mode, all multiply by two. Work will monoblock six equalization currents. Background appears. Advantage - The economic feasibility. Adjust the high voltage signal. Noise immunity. One input node. Lack of interconnect connectors. Common point for the entire system.
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Old 26th February 2014, 10:10 PM   #4
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Quote:
Originally Posted by FEDOSOFF View Post
A standard solution will require three monoblock. Crossover. Three interconnect cable. In stereo mode, all multiply by two. Work will monoblock six equalization currents. Background appears. Advantage - The economic feasibility. Adjust the high voltage signal. Noise immunity. One input node. Lack of interconnect connectors. Common point for the entire system.
Disadvantages-

Crossover circuits will have to operate at very high signal voltage to drive buffer directly.

No global feedback to control distortion in output stage.
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Old 26th February 2014, 10:22 PM   #5
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Another big disadvantage is that your buffers have relatively low, highly nonlinear input impedance. This will greatly affect the operation of your crossover circuits.

This doesn't mean that you can't build an integrated tri-amp system. But you won't be the first.
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Old 27th February 2014, 06:47 AM   #6
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Originally Posted by Fast Eddie D View Post
Another big disadvantage is that your buffers have relatively low, highly nonlinear input impedance. This will greatly affect the operation of your crossover circuits.

This doesn't mean that you can't build an integrated tri-amp system. But you won't be the first.
Hello Fast Eddie D. All repeaters FET input and have a great input soprotivleniya.Osnovnoe dignity. Significant reduction in the audio path cascades.
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Old 27th February 2014, 07:31 AM   #7
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Originally Posted by FEDOSOFF View Post
Hello Fast Eddie D. All repeaters FET input and have a great input soprotivleniya.Osnovnoe dignity. Significant reduction in the audio path cascades.
I don't really understand what you're saying, but you're completely missing my point. FET inputs and "soprotivleniya" (whatever that is) have absolutely nothing to do with my point. My point is that you can't drive unity gain output buffers directly with the output of your filters. There's a whole lot that's wrong with that.
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Old 27th February 2014, 08:30 PM   #8
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Quote:
Originally Posted by Fast Eddie D View Post
I don't really understand what you're saying, but you're completely missing my point. FET inputs and "soprotivleniya" (whatever that is) have absolutely nothing to do with my point. My point is that you can't drive unity gain output buffers directly with the output of your filters. There's a whole lot that's wrong with that.
Dear Fast Eddie D. The main purpose of the patent - eliminate extra stages. Exclude filters from the speaker. On the repeater input signal is applied to the chip PCM1794A. Read more here. Single-cycle symmetric (N - P - N channel + P - N - P channel) repeater plated input It turns out the shortest path three band in the world.
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Old 28th February 2014, 12:45 AM   #9
sreten is offline sreten  United Kingdom
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Hi,

The proof of the pudding would be manufacturers
beating a path to your door and offering you lots
of cash to exploit your wonderful design.

Sadly I don't see it. Its hard to fathom what it does
and it smacks of a solution looking for a problem
that simply does not exist, and a very naive
approach to active speaker design in general.

"Shortest path [whatever] in the world" means very little.

rgds, sreten.
__________________
There is nothing so practical as a really good theory - Ludwig Boltzmann
When your only tool is a hammer, every problem looks like a nail - Abraham Maslow
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Old 28th February 2014, 03:29 AM   #10
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Quote:
Originally Posted by FEDOSOFF View Post
Dear Fast Eddie D. The main purpose of the patent - eliminate extra stages. Exclude filters from the speaker. On the repeater input signal is applied to the chip PCM1794A. Read more here. Single-cycle symmetric (N - P - N channel + P - N - P channel) repeater plated input It turns out the shortest path three band in the world.
It's not going to work. I already explained why.

I would guess that I know way more than you do about this stuff, and I have never come up with anything to patent. Every single thing I've "invented" was already thought of and patented by somebody else.

Your idea is so obvious that if it actually did work, it would have been implemented a long time ago. We would all be talking about it right here already. That being said, if you do come up with something new and practical, then more power to you.

Of course, if you don't believe us, then go ahead and build it. You'll figure it out then.
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