Matt:
I have a similar main system set-up with the MF CD PRE 24 (preamp & cd player) and A300 CR power amplifier. My speakers are Acoustic Research 302 which easily go down to 35 hz ... so the bass is on par with some of the best that I have heard (in my case, the mid-range and overall imaging need help).
Don't change your electronics ... they are fine. I would suggest first moving your Totems closer to the wall and if that still isn't to your liking, try a sub woofer (Totem makes one, but I do not know the price). Lastly, you can wait until you are over 45 and suddenly, the real low end doesn't matter as much anymore. My buddy and I were at the HiFi Show yesterday (Friday) ... he's 27 and I am 48. It was pretty funny after awhile who thought which speaker got it right. The only ones that we could agree on were Focus Audio's SE 10 year anniversay models. And this is where the age difference comes in big time ... I can afford the $3400 scratch ... his wife gives birth in about a month and he received her blessing to buy a pair of the EPOS ESL3 and matching center (about $600).
It's all in the timing ....
Regards, Rich