Importance of Amplifier versus Preamp?


New in the field. I am wondering what is most important: a great amplifier with a good preamplifier, or a good amp, with a great preamplifier? Or should I look at a good amp with a great do certain brands make amplifier to go with preamplifier and receivers?
Thank you kindly.
rockanroller
Swampwalker,

I've been wrong before, and I may be wrong now, but I still think I called it right. This is how he starts off.

"New in the field. I am wondering what is most important: a great amplifier with a good preamplifier, or a good amp, with a great preamplifier? Or should I look at a good amp with a great do certain brands make amplifier to go with preamplifier and receivers?
Thank you kindly."

How do you go from that, to this?

"After reading some comments on amplifier, I really wonder what mechanical/electrical/audio miracles have been performed , knowing the fact that the laws of Physics are still the same as they were 20/30 years ago, metallurgy has not come up with new alloys, to justify the cost in ten of thousands of dollars. As Mr Carver demonstrated, by building an affordable amplifier, of which the sound could not be distinguished from an extremely expensive name amplifier that was being compared to(mid`s 70 )!
The fact also remains that the human auditory system is very limited in scope, unless your name was Beethoven, or Mile Davis,for example. Just wondering.....So if I was able to spend 5/6 grands on an amplifier, I would probably buy a Carver amp...I can already feel the wave of outrage from all the AUDIOPHILES coming at me....OHLALA!"
He's new in the field, very humble and wants out opinions. It sounds great.

He's gone from being the humble learner just a few short days ago, to having it all worked out on several different fronts scientifically. And now top it all off with a healthy dose of know it all sarcasm. For all I know, you may be right, but to me that last post sounds like someone who came here to teach, and already had their mind made up.
Zd- you might be right. I didn't focus on all those details as much as you did, but then again w my ADHD I prbably just forgot!
Prior to my recent experience I was an advocate for the preamp having the most impact on the sound. I sold my Parasound A21 and listen to a friends Jeff Rowland 125 amp over the weekend. Despite having half the power, going from the A21 to the 125 was the most significant difference that I've heard. I submit it depends on what you currently have and what your going to determines how much impact the component will have on your system.
Zd542, I have a hunch that the op has been reading objectivist crap on youtube and other sites. I could certainly be wrong, though.
IMO, if your system is passive preamp friendly, spend the majority of your $ on the amp. Great passives can be had/made on the cheap.
Read the Audiogon forums until you understand all things about impedance between components, impedence curves in speakers, efficiency/sensitivity of speakers, balanced vs unbalanced components and the different types of sources and their benefits. Just put in keywords and go from there. If you learn as much as possible before making a decision it will be a better decision.
I might also suggest a copy of Get Better Sound from Jim Smith. He covers a lot of things about speaker/room interactions. Have fun, it can be a lot of fun if you don't make any big mistakes.
It may seem like a lot but it begins to fall in place at some point.