what power amplifier are really punchy

it seems to me that alot of high quality ss amplifiers have a good low end slaming bass and can sound smooth but they seem to miss a really punchy satisfing mid bass and for me to follow bass lines with no problem.i really dont have a system together now.could someone if they know what i am talking about recommend a amplifer in the 200 watt range that has a really punchy mid bass i listen to rythm and blues,old rock,jass,techno.thanks