William J

Depends on what your needs are, but I have an Audio Electronics Supply (think Cary) AE-3 that does what you're looking for, without losing the highs, plus it uses cheap tubes. The unit sells for $599.00, but only has volume and source select. They put the frills dollars into the design, and if you're a do-it-yourselfer, it's available as a kit. I'm running mine with Klipsch Epic CF-3s.

An amplifying note about vibration, the more you get rid of, the louder you can crank it which is why you generally see Krell, Mark Levison, etc.. were the cost is becoming limitless have huge (200 pound) amps. Though thats not the only reason why their products are so massive, it does play a part.

Sorry it took so long to get back. I checked for messages in my in box, not the message board. The bigger the bag, the better. The idea is that vibration is a terrible thing and you want to get the cabinets to be as 'dead' as possible. I would try one gallon bags and get them to cover the entire bottom, though I suppose you can accomplish this with quart size since you could fill them before you slide them through the ports. Unless you want to remove the lower driver. Otherwise, have fun filling them!

Tony, I have owned CF-3's (revision 3) for five years. Recently, I bought a tube pre-amp and four monoblock power amps. I found that the speakers resonate, but can easily be fixed. First, use the spiked feet, take your time and position them. Follow Cardas' website on basic position. Use a level. Don't let them rock (back and forth). Also, on the horn, I found that the spades were jammed into the post hole, and one nut was even locked open. I fixed that, but the driver screws into the horn and it was loose to begin with. I used Teflon tape on the threads and snugged it up. This eliminated almost all the cabinet noise. You can also fill a ziplock bag with sand and place it in the bottom of the speaker cabinet. I've been experimenting with Dynamat for the last .05% of cabinet resonance. These are excellent speakers! The magnets on the drivers allow them to be fast, accurate, and sensitive, while still extending the bass far enough, especially for the price. Just be careful not to drive them too hard, they go without warning! Enjoy. Bill