Mac MA 6100 worth the $$ to update? orig owner

Thanks for the advice, I have learned some things. I am using the SME type III tonearm and the Denon AU - 320 cartridge transformer(forgot to mention it). Per your suggestion, I checked the woofers while playing a vinyl record, the bass was prominent, woofers well behaved. Mattmiller, you stated a comliance (sic) of 25. My specs for the DL 301 II read Compliance: dynamic 13 x 10-3m/N. I feel I should know more than this but do not. I will take yours and Effischer's advice re the upgrade to a new amp. Exciting, actually.
Should I resolve the electronics and possibly cartdidge issue before deciding on the speakers. Note that I am to audition the B&W preference 6 speakers this week.
Your input is very much apperciated

Thank you, Jihley. I am now looking at the MA 6600. I am prepared to replace the amp and speakers and the cartridge (which was purchased last) though I probably don't have 10 hours on it. What is recommended, replace speakers or amp first? At my age, I can afford the $$ but I'm sure my hearing isn't what it was.
Thanks for your time.

Thank you, Effischer, I've got some work to do, considerations to make. I think some of this research and information may look good on paper but may not sound good in my room. Yours and others who took their time to offer information is greatly appreciated.
For your information I am auditioning the B&W Preference 6 speakers. More fidelity, presence than my B&W Martix 1. The bass is tight and not so pronounced, similar to the pair I currently own. Perhaps as I have heard in the answers to this thread, 70 wpc may be a little light for the B&W. But the Preference 6 is an improvement over what I own.
This is a great forum and you experienced members are generous with your time.