Using subs as speaker stands ?

As Danner suggests, the ideal sub locations will likely be very different than your ideal speaker locations. As Warrenh suggests, stacking will not provide the same sound as separate stands (the bass will transfer through the rubber and the height is not ideal). For space saving purposes, you might choose to get the stands and place the subwoofers behind them. There is no direct transfer of bass waves and the subwoofers would be closer to the rear walls (where they generally sound better, but every subwoofer needs to be placed a bit differently). Good luck.

My friend has the configuration you're considering and it works really, really well. FYI, his bass/base modules have two 12" woofers per cabinet in an isobarik array. I'm not certain they are the "Taylo" model but they are definitely Tyler.

Component quality speaker stands exist! Rubber will only slow and then re-release stored resonant energy back into your speakers, your room, and again your speakers, and then your room again . This continuim does not stop. I would first optimise your main speaker setup and position and then when this is complete move on to subs. Subs also need platforms that will allow for the high speed transfer of stored resonant energy. You are also welcome to e-mail me. Good luck. Tom

As stated, good stands are going to work better than stacking on the subs. But if you want to try it, look into a product called Microsorb, sold by percyaudio.com. It is a sticky acrylic damping sheet that will not only hold the speakers very effectively, but will also absorb a lot of excess cabinet vibrations.

You might want to think about the Ref II. It is basically the monitor with its own passive subwoofer section. This will give a better appearence. I am sure Ty could make you a bass module for the ref monitor (Lynbrook style). I am not a big fan of powered subs when used with high quality monitors. Getting them to sound just right is time consuming and frustrating. It might be the cheap crossovers they use in the sub amps. Some of my taste in music contains a lot of bass. For me passive is the only way to go.