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Does something seem wrong here?

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F1nut

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Post Fri Jul 22, 2011 3:25 pm

Re: Does something seem wrong here?

F1nut - adding a 1.5 ohm resistor seems to me to be a SERIOUS mod. If we're talking speakers which drop to as low as 3 ohms or so, that's a major drop in db's, relative to what we'd expect for a typical design without the resistor, at the same gain settings.


You'll have to take that up with Bob Carver.

Also, What about the damping then? People are out there buying 4 ga. wire for their speaker runs to reduce the resistance, and improve amplifier damping control.


A lot of folks don't understand that the damping factor has no bearing as long it is above 10. The difference between a factor of 10 and 2000 is so minuet it is measured in tenths.

What shouldn't matter? Is that the question? Seems obvious enough - what shouldn't matter is where we have the volume position set on the preamp, whether it's 1/4 turn, or 1/2 turn is not important, as long as we are not asking for more voltage then the preamp can cleanly deliver. Position then is just psychological. We might think that,"hey this 300 watt amplifier isn't as powerful as my other 300 watt amplifier", just because we are turning the gain higher for the same volume.


The bottom line is where the amp starts to run out of gas. Otherwise known as clipping.
Political Correctness...defined

A doctrine fostered by a delusional, illogical minority and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a turd by the clean end.



In a recent press conference, President Obama remarked, "If I had a city, it would look just like Detroit."
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treitz3

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Post Fri Jul 22, 2011 3:41 pm

Re: Does something seem wrong here?

Planerguy wrote:I'll be out the rest of the day, but this 2 output taps on the Sunfire amps intrigues me, and it would be nice to know what's going on there! Will definitely check this topic tomorrow. Thanks to whomever explains this in simple enough terms for a dummy like me!
In layman's term's, one is a voltage source and the other is a current source. Bob put a resistor between the voltage source output and the current source output do reduce the damping of the amplifier. The current source sounds more like a tube amplifier and the voltage source sounds more like that of an SS amplifier.
In search of accurate reproduction of music. Real sound is my reference and while perfection may not be attainable? If I chase it, I might just catch excellence.

The best way to enjoy digital music reproduction is to never listen to a good analogue reproduction.

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Planerguy

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Post Sat Jul 23, 2011 3:31 pm

Re: Does something seem wrong here?

"The bottom line is where the amp starts to run out of gas. Otherwise known as clipping."

Exactly. That was MY point. Relative position of the volume knob, within reason, doesn't matter.
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Planerguy

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Post Sat Jul 23, 2011 3:34 pm

Re: Does something seem wrong here?

"richP is a lying POS"

Who is richP???
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OconeeOrange

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Post Sat Jul 23, 2011 3:38 pm

Re: Does something seem wrong here?

treitz3 wrote:
Planerguy wrote:I'll be out the rest of the day, but this 2 output taps on the Sunfire amps intrigues me, and it would be nice to know what's going on there! Will definitely check this topic tomorrow. Thanks to whomever explains this in simple enough terms for a dummy like me!
In layman's term's, one is a voltage source and the other is a current source. Bob put a resistor between the voltage source output and the current source output do reduce the damping of the amplifier. The current source sounds more like a tube amplifier and the voltage source sounds more like that of an SS amplifier.


Bob recommends running the voltage to the the low end and the current to the high end, (but adds one should experiment to find what they prefer)

I have my CRS-3 hooked up like that and it all sounds very good. To turn it loud enough for possible clipping, I would need a remote so I could stand way out of the firing line. :D
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OconeeOrange

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Post Sat Jul 23, 2011 3:42 pm

Re: Does something seem wrong here?

Planerguy wrote:"richP is a lying POS"

Who is richP???


Apparently he was the last guy here brave enough to call Jessie out. :lol: :lol:

He does have a lot of fans here, but like Jessie, I am not one.
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treitz3

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Post Sat Jul 23, 2011 3:44 pm

Off the subject at hand...

Planerguy wrote:Who is richP???
The only member in the history of this forum to ever be banned from it.
In search of accurate reproduction of music. Real sound is my reference and while perfection may not be attainable? If I chase it, I might just catch excellence.

The best way to enjoy digital music reproduction is to never listen to a good analogue reproduction.

Robert R. - "Did you see my North Korea analogy? I should have named it Carversite.kim"
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BillD

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Post Sat Jul 23, 2011 7:43 pm

Re: Does something seem wrong here?

Also the designer of the Mk.II M-1.0t and M-500(t), and the owner of http://www.thecarversite.com
It should sound like it isn't there!
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OconeeOrange

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Post Sat Jul 23, 2011 7:59 pm

Re: Does something seem wrong here?

OconeeOrange wrote:
Planerguy wrote:"richP is a lying POS"

Who is richP???



He does have a lot of fans here.


See, they are starting to come out to defend him now -- :-"
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TNRabbit

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Post Sat Jul 23, 2011 8:24 pm

Re: Does something seem wrong here?

OconeeOrange wrote:
OconeeOrange wrote:
Planerguy wrote:"richP is a lying POS"

Who is richP???



He does have a lot of fans here.


See, they are starting to come out to defend him now -- :-"


That's not defending; that's simply stating a fact.
TNRabbit
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OconeeOrange

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Post Sat Jul 23, 2011 9:53 pm

Re: Does something seem wrong here?

TNRabbit wrote:
That's not defending; that's simply stating a fact.


...and there is #2 :lol: :lol:

I was not around back then, but to the guys who were, it is still a hot button.
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F1nut

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Post Mon Jul 25, 2011 1:08 am

Re: Does something seem wrong here?

Planerguy wrote:Who is richP???


No one you'd want to know unless you like the company of a liar and thief.
Political Correctness...defined

A doctrine fostered by a delusional, illogical minority and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a turd by the clean end.



In a recent press conference, President Obama remarked, "If I had a city, it would look just like Detroit."
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Planerguy

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Post Mon Jul 25, 2011 5:11 pm

Re: Does something seem wrong here?

Sorry i asked! Didn't mean to stir up old controversy's, just thought it was someone who posted a Carver item here, and never sent it, etc.

I've run into guys like THAT on other sites.

Let's just move on; nothing to see here.
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luluxiu

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Post Tue Aug 02, 2011 12:28 am

Re: Does something seem wrong here?

I agree here with the rabbit, you compare .... a 300-watt amplification level? It drives more than 20 years to ease my Apogee's no problem. I believe it will be any 300-watt SS amp on its own in the same class.
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engtaz

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Post Tue Aug 02, 2011 2:23 am

Re: Does something seem wrong here?

Welcome
engtaz


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