Best center substitute to match B&W 803's

Anyone know or can recommend a sleek or in wall or modern looking center speaker that is not to big ( as in wide ) that I could match up with 803'sthat would provide good clear dialogue when watching movies? I have the htm2 and it is just too big - putting in a fireplace under my plasma and need something a lot smaller ....besides the htm2 center for whatever reason Is bassy, sounds hollow and does not provide clear dialogue...spoke to b&w and they said I have no alternatives other than the htm4 but I suppose they can't refer me to another brand...any ideas or suggestions? Thanks very much.