mosfet designs emulate tubes when it comes to playback...that said, many mosfet designs do have good bass control...cj as an example.
Mos-fets or Bipolars
why does a bipolar amp offer more bass control and output versus a mos-fet? Will a bipolar amp be more stable in the bridged mode with each side of the amplifier seeing 2ohms when driving a 4ohm sub ? I just found out my Adcom 555mkII is a bipolar amp.Learn something new every day.