Battery Powered amps and preamps

I wonder if there is anyone who has had experience with the N.E.W. in an owners perspective. I know it sound weird to have 35 run of the mill batteries powering an amp and 20+ other same type batteries running the preamp, nevertheless, I wonder if running tubes and class A amps, which do make a dent in the wallet as the environment as would the wasted batteries be on the same league....It is simply a different way of spending our greenbacks. I have read in the Final company website that if one listens to the stereo set up, 2 hours a day with fairly efficient speakers (96db+) the set would last about 6 months. I calculate the expense in batteries to be about a max of $100 to load a set, $100 in 6 months does not seem so reasonable. Let us think about all the insane amounts of money people spend in REFERENCE type powercords...some at 2k each!
Paul

The N.E.W. amp that I own is the DCA-66. Its very clear and a bit revealing. It doesnt sound like 60 watts. The pure current available to it gives it an very imposing sense of power. Almost scary. It slams out the power. Its good for about 4 hours. Then it needs an overnight for the 4 motorcycle batteries. Not likely to ever be duplicated. Quite a piece.

I also owned the NEW amp. It sounded great, battery lasted 4 hr's without charge. BIG PROBLEM! Reliability. Build quality and parts mediocre. Assembeled by moron's. Both the original and replacement bit the dust in a cloud of smoke. BEWARE!

Paul, the only battery powered equipment I had was a DNM pre -- 15 years back. The power supply was a rechargable battery, officially always plugged into the socket (purists had advised otherwise). It was particularly silent by pre-amp standards of the time (and the money: affordable) and thereby clear-sounding. A later model, conventionally powered (the "6") sounded better though.. probably due to better quality components and superior design.
Speaking of accumulators, someone suggested I try a military grade, 36 amp bettery to power the whole system. Allegedly, such accumulators are successfully used in submarines! Haven't tried this yet...
Cheers!

Correct me if I am wrong but I believe the NEW amps were designed by Nelson Pass. I have heard that the design is good but reliability has something to be desired. I have never owned one so this is just hearsay.