Before making a cable vs sub decision be certain that your Ascendents are well out in the room, in proper reflective placement, and spiked. At this point I'd suggest auditioning a more powerful amplifier.
If your looking for low frequency there is no substitute for a well integrated subwoofer/s especially if you like what your current amplifier is offering you in the mids and highs.
I would preface that every room has different reactions to extra low frequency an individuals goals and taste are very subjective.
That said, I auditioned a Studio III and found it to be very limited by its preferred high level (speaker} connectivity. The supplied cable is so short it limits room placement which is usually critical with a sub without onboard EQ. Compared to Velodyne DD+ system integration was marginal at best.
I'd suggest partnering the 528 with DSpeaker EQ or similar.
If your looking for low frequency there is no substitute for a well integrated subwoofer/s especially if you like what your current amplifier is offering you in the mids and highs.
I would preface that every room has different reactions to extra low frequency an individuals goals and taste are very subjective.
That said, I auditioned a Studio III and found it to be very limited by its preferred high level (speaker} connectivity. The supplied cable is so short it limits room placement which is usually critical with a sub without onboard EQ. Compared to Velodyne DD+ system integration was marginal at best.
I'd suggest partnering the 528 with DSpeaker EQ or similar.

