Old NAD or newer high powered Denon?


I am currently running a NAD 3020 in my main system. I love the amp. When paired with my Sequerra MET7's it sounds great. I also have a pair of Vandersteen 1C's and I am thinking that the NAD's don't have enough power to drive them. I am getting relatively poor sound quality out of the 1C's with the NAD. It closed in and not very dynamic (when compared to the MET7's). I have heard the 1B's in the past and they sounded amazing which is why I initially purchased them.

So my question is: would I gain anything in terms of sound quality of I purchase a higher powered more recent model Denon or am I just hearing the differences between the MET7 and the 1C's?
hifibear
NAD 3020 is legendary.........for 1978. Still a good piece for the MET 7s. You need more and better power. Not the Denon. Here is a list of integrated amps that will bring life to the Vandersteens:

Audio Refinement Alpha
Exposure
Luxman

You did not give a price range, so I'm all over the board. Good luck.
Hi Celtic66.
Thanks so much for the response.
I listen mostly to streamed digital.
Pandora and iTunes and ripped cd's on a media server.
I listen to all types of music but my favorites are
jazz. My favorites are Nora Jones and Linda Ronstadt.

My budget is as low as I can go to get good sound.
Ideally I'd like to get an integrated amp or a receiver.
I don't mind buying used or older equipment.
I will be using the Vandys with a subwoofer.
I know that the NAD is a warm sounding amp and together with the 1C (which I think is warm sounding as well), I am getting a boxy sound that I am right now disappointed with.

What if I use the NAD as a preamp and just get a power amp?
If you are on a tight budget look for a higher powered integrated from the late 1980s to early 1990s. A Denon in the 100 watt range is a good choice. Before you purchase make sure the amp has never needed repairs and that it has never been modified. You can expect to pay between $200-$300 for a nice one.
Dosen't sound like much of an upgrade. If your on a very tight budget you might be better off waiting till a better time.