Tube vs Solid State?

[skeptic]

To completely clarify my statement then..."The VAST majority of tube amplifiers use output iron, and the VAST MINORITY of SS designs do not.

That is correct. The point is that the ss amp designers could have used them had they wanted to. Amplifier users had always been accustomed to seeing them on their equipment and paying for them. The designers rejected output transformers in favor of capacitors not just because they were cheaper but because they sound better. And with the arrival of completely DC coupled amplifiers in 1967, even the capacitor was a design option.

[300A]

That is correct. The point is that the ss amp designers could have used them had they wanted to. Amplifier users had always been accustomed to seeing them on their equipment and paying for them. The designers rejected output transformers in favor of capacitors not just because they were cheaper but because they sound better. And with the arrival of completely DC coupled amplifiers in 1967, even the capacitor was a design option.

Some people just refuse to learn. No SS amps use capacitor outputs, and if they did, they sure would NOT use electrolytics.
And SS doesn't need output transformers. Your making no sense.

Tubes can't use capacitor outputs unless in an OTL or Cyclotron designs. The current capabilities are too low and the output Z is too high. And if one uses a cap on the output of an OTL, it is for disaster protection, not because of the sonics. And even then Polys would be the choice, not electrolytics.

And even different brand polys sound different.

Get a grip on yourself Skeptic and at least try to learn. Ignorance is not to be celebrated.

[skeptic]

Some people just refuse to learn. No SS amps use capacitor outputs, and if they did, they sure would NOT use electrolytics.
And SS doesn't need output transformers. Your making no sense.

Ignorance is not to be celebrated.

I am not celebrating your ignorance, believe me.

How do you think solid state amplifiers keep 70.7 volts DC from getting into loudspeakers and destroying them? How many have you taken apart. How many have you built? How many have you studied. Apparantly none of them. I suggest you stop writing and start reading. Maybe eventually you will learn something. Unless a solid state amplifier has a dc coupled output stage, it needs a large dc blocking capacitor which is invariably a POLARIZED ELECTROLYTIC CAPACITOR. The sole exceptions that I know of are the early McIntosh units.

[300A]

I am not celebrating your ignorance, believe me.

How do you think solid state amplifiers keep 70.7 volts DC from getting into loudspeakers and destroying them? How many have you taken apart. How many have you built? How many have you studied. Apparantly none of them. I suggest you stop writing and start reading. Maybe eventually you will learn something. Unless a solid state amplifier has a dc coupled output stage, it needs a large dc blocking capacitor which is invariably a POLARIZED ELECTROLYTIC CAPACITOR. The sole exceptions that I know of are the early McIntosh units.

You have got to be kidding. Name some brands that use caps on the output. I want to read those high quality brands.

Only lowfi would have 70 volts DC on the output and use caps; like for schools, intercom systems etc. Any halfway good audiophile piece would use complimentary circuitry and DC couple out.

Are you using one of those amps, with the polarized electrolytic caps on the output for your listening??

Lowfi would obviously use caps to save money as sonic quality is not very importance. They certainly wouldn't use OPTs.

Get back to reality, man.

[FLZapped]

You have got to be kidding. Name some brands that use caps on the output. I want to read those high quality brands.

Now you're squirming....you made no mention of brand in your original assertion.

-Bruce

[RGA]

Now you're squirming....you made no mention of brand in your original assertion.

-Bruce

I'm not a techie by any means. But My Sugden A48b according to the review is completely DC coupled and has no capacitors of any kind in the signal path.

"One feature of the A48B is its plug-in, d.c. coupled moving-coil/moving magnet phono board.../...[s]ince i have mentioned d.c. coupled--there is not a single capacitor--of any value or description -- anywhere in the signal path." (Australian Hi-Fi).

Whatever this gobbledygook actually means it sounds good and I won't have to replace the capacitors.

[300A]

Now you're squirming....you made no mention of brand in your original assertion.

-Bruce

Ah, but I did mention PA and school systems didn't I. Nothing of high sonic quality, to be sure. Capacitors, in cheap systems, are used to keep DC off the 70.7 volt trannies, so they won't blow if an output transistor does blow. Reliability over sonics in these situations.

If you think dynaco SS amps are great sounding amps, LOL.

[FLZapped]

If you think dynaco SS amps are great sounding amps, LOL.

Oh wow, now you're a mind reader as well......

-Bruce

[FLZapped]

Ah, but I did mention PA and school systems didn't I. Nothing of high sonic quality, to be sure. Capacitors, in cheap systems, are used to keep DC off the 70.7 volt trannies, so they won't blow if an output transistor does blow. Reliability over sonics in these situations.

If you think dynaco SS amps are great sounding amps, LOL.

Really.......

Some people just refuse to learn. No SS amps use capacitor outputs, and if they did, they sure would NOT use electrolytics.
And SS doesn't need output transformers. Your making no sense.

Tubes can't use capacitor outputs unless in an OTL or Cyclotron designs. The current capabilities are too low and the output Z is too high. And if one uses a cap on the output of an OTL, it is for disaster protection, not because of the sonics. And even then Polys would be the choice, not electrolytics.



I don't see any such mention.

-Bruce

[300A]

Now you're squirming....you made no mention of brand in your original assertion.

-Bruce

if this is a PA forum or low/midfi forum. I thought this was a high end forum.

My apologies.

[FLZapped]

Some people just refuse to learn. No SS amps use capacitor outputs, and if they did, they sure would NOT use electrolytics.

You forgot class A power amps:

http://sound.westhost.com/project36.htm

Looks like an output coupling cap to me. (Figure 1.)
Oh and don't forget the amp design in Figure 4.

And remember Dynaco?

http://home.insightbb.com/~dunn.greg/ST120/schem2.jpg

Can ya read japanese?

http://www.intio.or.jp/jf10zl/EF.htm

Can't resist, one more:

http://www.tcaas.btinternet.co.uk/jlh1996.pdf

See page 6.

And SS doesn't need output transformers. Your making no sense.

Gee, someone should tell McIntosh.

Get a grip on yourself Skeptic and at least try to learn. Ignorance is not to be celebrated.

Ahhhh, ad hominem attacks. You're beginning to sound like Jon Risch.

-Bruce

[300A]

You forgot class A power amps:

http://sound.westhost.com/project36.htm

Looks like an output coupling cap to me. (Figure 1.)
Oh and don't forget the amp design in Figure 4.

And remember Dynaco?

http://home.insightbb.com/~dunn.greg/ST120/schem2.jpg

Can ya read japanese?

http://www.intio.or.jp/jf10zl/EF.htm

Can't resist, one more:

http://www.tcaas.btinternet.co.uk/jlh1996.pdf

See page 6.

considered to be the best in the world.


Gee, someone should tell McIntosh.




Ahhhh, ad hominem attacks. You're beginning to sound like Jon Risch.

-Bruce

In my opinion, the Dynaco and new Zen, are a long way from being the best sounding in the world. Didn't even look at the third. And only three listed? How many hundreds of better sounding brands don't use output caps.

[FLZapped]

In my opinion, the Dynaco and new Zen, are a long way from being the best sounding in the world. Didn't even look at the third. And only three listed? How many hundreds of better sounding brands don't use output caps.

Hey, you made the blanket statement that SS amps do not use output coupling caps, nothing about brands, quality, yad, yada, yada.....

Well, you were obviously wrong, now are you just going to admit it, or continue to try and squirm out of the fact you made a blanket statement?

-Bruce