The reason some people get more bass response with Nordost SPM's and some people get less should be obvious. Wire doesn't produce bass response, it only carries the signal. A person with components -- wire is *not* a component -- that can resolve more bass will hear more bass -- either with Nordost SPM's or with generic well insulated 12 gauge speaker cables. IMO, people go from cable to cable, spending more and more money looking for capabilities that should come from their components in the hopes that $600 cables will turn 3,000 speakers into $6,000 speakers. If it were *me* and I were looking for an upgrade, I would consider selling my "high end" cables and Grand Pianos and employing that money towards an upgrade to the Sonus Faber Cremonas or towards a higher end source or better amplification. You *might* hear a difference between BH and SPM's, and it *might* just be a matter of taste, but you will *definitely* hear a difference AND get more resolution, coherence, soundstage, etc. from higher end components. IMO, it would be money better spent to upgrade components while looking for that particular sound you like than to stand pat with the rest of your system while trying to upgrade the cables. If it is the sensation of "speed" for which you are looking, the first place I would look would be either your amplifer or front end. You *might* be able to get that sensation from certain cables -- and that is debatable, but you can DEFINITELY get that sensation from certain amplifiers and front ends. The Grand Pianos are nice speakers. If they aren't singing for you, I would look at components upstream. Wire is wire -- it carries the signal from and to your components. It is not a component. JMO.