Older vs. newer REL subs


Looking for any reports about older vs. newer REL subs.

I have a REL 328 (ca. 2013) which I bought used. It's a good sub.

https://www.hifiplus.com/articles/rel-r-328-subwoofer/

I would like to upgrade to stereo subs and I've found (finally) another REL 328 which would match mine. But, before I drop coin on that, I'm wondering if anyone has had experience comparing their older REL with a newer one. What's changed? What's better, worse, or the same? I'm considering the T7x and T9x lines.

Hoping for apples to apples comparisons, vis a vis driver size, type of sub (e.g. level of product line, sealed vs. ported, music vs. HT etc.) but whatever old vs. newer comparison you have much appreciated. 

Thanks.
hilde45

Showing 1 response by dmbwire

I’ve got about a months experience with the new t/7x. It is an incredible upgrade over the i/series. They are extremely fast, play fast and loud (if needed). Took my two channel office system to another dimension. It is definitely a permanent fixture in my setup. Even REL states the new 7x is the sweet spot sub outside of their reference line. Pull the trigger; you’ll be glad you did.