You were right about adding a sub.

I've had subs around the house, but used them mostly for home theater.

From time to time, some of you have encouraged me to use a sub in my 2 channel setup. Curiosity got the best of me over the Holidays and I hooked up a sub using speaker level connections and used the sub's crossover.

My speakers are Usher 6311 and my Integrated is an Anthem 225.

What a difference it made to not only the bass line, but cutting the lows increased the soundstage, improved detail, etc. I feel like I have new speakers, And the bug to try other speakers is gone.

Thanks for the tip- wish I would have tried it before now! For those of you that are tempted, it may be worth a try, it certainly was is my case. I'm using a Svs Sound Cylinder, fwiw. 

Regards,
gary