Blending a sub with monitors is tedious. Your Harbeth's are similar to teh Spendors. The Spendor sub is very musical and a pair would blend well with your speakers. However teh Spendor subs are NOT very dynamic.
Martin Logan makes great subs. A pair of Grottos would work nicely. Their Depth is great but pricey.
I've hear lots of good things about the Vandersteen subs and the design is very logical.
Good luck!
Martin Logan makes great subs. A pair of Grottos would work nicely. Their Depth is great but pricey.
I've hear lots of good things about the Vandersteen subs and the design is very logical.
Good luck!