Subwoofer for Harbeth M30?

Hi,

I used a REL Storm with the Super HL5's in my room. They worked well together. My room was actually two rooms as I have a large listening room that opened into another large open space. I have subsequently sold both speakers as I bought a pair of Harbeth Monitor 40's. The 40's do not require the use of a subwoofer.

Good Luck with the Monitor 30's.

Will the use of a Bryston 10B active crossover improve subwoofer integration between the Harbeth Monitor 30s and a Rel active subwoofer?

I've mated Rel with the harbeths for years. They work great, integrated seamlessly.
Cant go wrong with the Rel B series or the St series w/ your M30s.