Subwoofer tweaks

I've had excellent experiences with Star Sound's Audio Points on my custom racking systems. In fact, not too long ago, I became a dealer for them.

You might also try experimenting with ics for your sub. All ics generate time smear to either a very small or great degree which leads to ill-defined and sloppy bass (and other things for main speakers). My limited experience tells me the vast majority of scs and ics generate great degrees of time smear and you'll never know it until you try one with less time smear.

Audience (AU24, Maestro, and Conductor series) or Audio Tekne are two names that come to mind that generate an absolute min. amount of time smear. Speltz Anit-ICs is another.

Properly addressing vibration mgmt techniques along with installing good quality ics can make the sloppiest of subs sound extremely tight, deep, fast, and well-defined. Which is what true bass is supposed to sound like.

-IMO

Stehno: Please explain how you measure time smear in cables. Do you have a white paper that you can share? I'm sure a lot of Audiogon members would be very interested in learning more about this. Thanks!

Place the sub on a granite block & another on top of the sub maybe cut to the size of the sub. This will certainly impore tightness & definition.

I too noticed an improvement when I placed three medium-sized cones under the sub. The cones were resting on a piece of granite block. Slow plodding bass was gone and the speed and definition were significantly improved.

This was compared to the sub directly on a carpet floor.

I was surprised you can support the sub with "a pair" of brass spikes? I thought we need a minimum of three?

Member Dgarretson reports serious improvements in his Velodyne by replacing the diode bridges. Take a look at his system.