Amp Question Please advise

If everything's OK with room and speakers I'd suspect source having not enough output level to feed Denon.

changing the amp won`t help @ low levels. Change the spkrs. if you can. A fair # of spkrs. sound like sh*t @ low levels.

I'm not sure about the Paradigm 40's but when I went from 140 watts to 300 watts (into 4ohms) with my dynaudio 1.8s, I noticed that I had real bass at lower levels, and didn't need to be cranked as much to get a coherent soundstage. I'd guess around 150 solid state watts (into 8ohms) from a quality amp (no mass market recievers).

I put up with that from my B&W N804s for a year ... increased energy brought out why they were such outstanding speakers, but a morning read with some nice background music was IMPOSSIBLE ... far too flat and lifeless. Give them juice and ... ZOWIE!!! Shifted to Tyler Taylos w/sub and didn't regret it.

Thanks all for your thoughts -
The carpet is thick & has a thick pad,the walls are sheetrock, I do not think there is much ehco from a clap
I will take some pictures and post a link so you can see the layout or the room there are material blinds on the windows but not heavy drapes.

As for the set up the Denons crossover is set to 80 HZ and the paradigm 40's and CC-350 are set to large the rears are set to small, I also have a Paradigm PDR 8 sub The sub setting on the 3805 is set to LFE NOT Lfe& main.
At work I set up a large recption area with Paradigm SA-35s wich are similar to the 40's but they are in wall speakers They are driven by a Carver DSC-60 Pramp tuner and a Crown D-75 amp and there are Much more lows than my 40's Much more noticable at low listning levles and that is why I thought if I added an amp and used the denon as a preamp It would delliver more power to the speakers & get better lows and detail at low listning levles.
Thanks again & I will take som pix tonight