T-Zero are nice and capable desk top subs down to 35 Hz. I run them with a PW AMP that uses the ARC room eq system. Removes the lowest bass from the monitors and as you say cleans up mid-bass. Indeed very good results. LS50/50W has in my opinion loud but non-interesting low bass information (as most small monitors). For a room system I would still say the PW AMP is excellent but you may need to step up to T5i subs (always at least use two). MartinLogan sells the same amp. Also the pre "Unison" with ARC if you like to use your own amp.
KEF-LS50 with REL T-Zero? Anyone?
I am putting together a second system in our casita. My source is a Bluesound Node2 and my power amp is an older Audio Research 100,2. (100 wpc SS). I just bought a pair of KEF LS50s. They are not setup yet so my curiosity about the need for a sub is speculative. This is a small room with limited space so if I think I need a sub it will have to be very small. Hence the Rel T-zero. It is the perfect size to fit in the open cabinet I will place it in. I have owned larger Rel subs in the past so I am familar with the brand. The Zero is a tiny sub...so much so I wonder if it will be worth the expense or effort. I've heard the LS50 and I know it has good bass....for it's size but just wondering if that extra bit of low end the Zero will provide will compliment the LS50. Knowing the limitations of the Zero I am not setting my sights too high but just wondering if anyone has heard this combo and can share their experience. Thanks