AC vs DC motor?

Rwd, I have the Redpoint/Galbier DC motor controller. Prior to that I had a VPI TT with SDS AC controller. The Galibier seems quieter to me with less motor vibration to deal with. My original battery lasted about 2 years and I purchased another for about $65 to replace it. The new one is more powerful and will most likely last longer. The only advantage of the VPI with SDS was that it was easy to dial in and lock the speed with the digital readout. I picked up a KAB strobe which really helps make it easier to dial in speed with the DC controller. Overall I feel that DC is the better way to go.

Thanks Dmailer!! Now were getting someplace! Anymore?

P.S. How did you know the battery was dying? Does it have an indicator light?

I replaced the battery when I noticed that it was not taking on a full charge. The power was depleting rather quick after a charge. It was still working when I stopped using it but I decided to get a new one before it gave out completely. I bought a Vector 450 amp jump starter and it works just fine. A fringe benefit is that you can jump start your car with it if need be.

The old battery had a VU meter. My current one has lights showing the level of charge. As far as use, I leave charging during the week and only unhook from charging when I play music. On weekends when I listen to more music I leave unhooked from the charger all weekend and do not worry about it. There is plenty of juice to run a TT motor for a week or so straight between recharging.

DC motors don't necessarily mean that its power source is a battery, in fact most run off of a DC power source. Why all of this discussion about batteries and none about the advantages or disadvantages?
Again, the advantages/disadvantages boil down to the execution of the design in regulating/maintaining speed.
Bob P.