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Tubes vs Solid State Comparison Video (over speakers)

post #1 of 8
Thread Starter 

Here's an amp comparison video:

 

http://www.youtube.com/watch?v=EeohyoFYb0U

 

The difference between the amps is huge. I like the first one better (granted, I wasn't in the room, just listening on YouTube). However, the man in the video didn't reveal the price of either amp. Also he didn't reveal which amp was which.

post #2 of 8

Between the dotted lines I will list point by point everything done correctly for this to be a meaningful comparison of tubes and solid state.

 

.................................................................................................................................................................

 

 

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post #3 of 8

One very obvious difference is that the first amp is quite clearly set to a higher volume. That right there invalidates pretty much everything else about the test.

post #4 of 8

I know electrostats use tubes for high voltage.  

 

Oh yeah there is some contradicting statements here regarding tubes and distortion:

 

1.  Amp distortion is not audible below a percentage .1%? which is popular statement here

 

2. tube have higher distortion than SS amps to probably imply that it's audible?

post #5 of 8

What a completely useless test that was.

post #6 of 8
Quote:
Originally Posted by Astropin View Post
 

What a completely useless test that was.

I agree, I don't see the point of listening test on youtube. lol.

post #7 of 8
Quote:
Originally Posted by SilverEars View Post
 

I know electrostats use tubes for high voltage.  

 

Oh yeah there is some contradicting statements here regarding tubes and distortion:

 

1.  Amp distortion is not audible below a percentage .1%? which is popular statement here

 

2. tube have higher distortion than SS amps to probably imply that it's audible?


Not sure if you mean electrostats create the high bias voltage using tubes or not.  I don't know if any of them use tubes for that.  Most do not.  Most use a variation of stacked voltage doublers to create the high voltage on the panel.  In more recent years some use a simple off the shelf high voltage supply. 

 

As for distortion, at some point distortion becomes inaudible.  Above that point it is audible.  There are tube amps with very low levels of distortion. Most are somewhat higher and perhaps audible in distortion levels. 

 

Probably the more audible part of tube amps is their high output impedance as they typically are designed.  It can audibly effect the speaker frequency response due to the uneven impedance of most speakers.  It also will reduce the damping of woofers in some cases. 

post #8 of 8
Ummm, it's a preamp test too, not an amp test.

At least the music was interesting and available for download:
http://www.alternesia.com/download.html
Edited by GrindingThud - 5/9/14 at 12:52pm
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