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Solid state amplifiers and sound stage, especially front to back "depth"

I've been enjoying my trial period with the Van Alstine SET 400 stereo amplifier. When I'm done and have collected my thoughts, I may write up a summary.

In the meantime, a question for folks with more experience. I've noticed is that the amp produces a sound stage that is nicely defined and articulate from left to right, but not as much from front to back. (My Adcom was also unable to create sound stage depth.) I know my room is capable of that sound stage because my tube amp accomplishes it.

Question: Is it typical of solid state amps to have less of a front to back sound stage than tube amps? Do they vary in this regard? Or, perhaps, am I failing to do something -- such as re-position my speakers? (After all, I immediately get that sound stage back when I switch amplifier without moving anything else.)

If you have any experience with solid state amplifiers and sound stage -- front to back, left to right, or whatever, I'm curious.

This is not about me keeping or not keeping the amp. There are many things I already really like about it. But I'm wondering about this aspect.

Thanks.
128x128hilde45
hilde45's avatar
hilde45 OP
5,034 posts
 
@sugabooger 

I did do tone frequency sweeps with both amplifiers. Not much difference at all. Nor with impulse responses.


213runnin
914 posts
 
Having depth to the sound depends first of all, whether or not it's in the recording that you're listenig to.  Next, whether your speakers can recreate the full image that is in the music.  And finally if there is anything in your system that is degrading the signal.

And EVERYTHING can degrade the signal.  
hilde45's avatar
hilde45 OP
5,034 posts
 
@213runnin Thanks. Previous posts in this thread addressed all those things.
niodari's avatar
niodari
305 posts
 
I think that here are two different issues.  First is the body and the depth of each instrument,  how individual instruments sound. Here I think besides the recording quality, amplifying equipment is definitive. On the other hand, whenever positioning of each musician is regarded, in width  or  depth, I guess  the type and quality of a particular recording is important. Perhaps, recording with a single microphone would be more beneficial. But most jazz recordings are not made this way, mostly classical music I guess.
hilde45's avatar
hilde45 OP
5,034 posts
 
@niodari 
On the other hand, whenever positioning of each musician is regarded, in width or depth, I guess the type and quality of a particular recording is important.
This is a valid point. But if one uses the same exact recording and the only change in the entire setup is amplifier -- and then the positioning, width, and especially depth is affected -- then the only thing which can be responsible is the one variable which changed. In this case, it was the amplifier.


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