2. amps-preamps
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Battery powered amps

Anybody have experience with battery powered amps? I am specifically intrigued by the Red Wine Audio products. They have a pair of 70 watt mono blocks that run totally on battery power. Six Moons has reviewed these (and RWA's 30 watters) very favorably. At 70 watts, they should be capable of driving a fairly wide range of speakers and in reading up on the technology they seem to be fairly low maintenance. Of course, recharging is an issue, but it looks like these amps will go 6-12 hours on a single charge. That would satisfy 95% of my listening requirements. Considering how much time, effort and expense that we audiophiles spend trying to tame the AC powering our equipment, battery power is very intriguing since it removes that evil altogether. It looks like RWA also has a tubed battery powered pre-amp/DAC in the works as well. Cool stuff, but I would be interested in real world experiences.
cruz123
nonoise's avatar
nonoise
11,226 posts
 
I have the Sig 30 and plan on upgrading to the 30.2. Having gotten that out of the way, you'll not regret going 'off the grid'. They have current aplenty and can drive less efficient speakers than what their wattage implies. Like Pardales says, go to the website and read up on all the reviews and by the way, they can longer than 12 hours on a single charge.
They are exquisite amps, to say the least. Its rather uncanny the way the music emerges from a totally black background.
hchi
43 posts
 
TRL stands for Tube or Transistor Research Labs. The website is tuberesearchlabs.com .
clio09
3,374 posts
 
TRL is Tube Research Labs. They make custom built tube and solid state amps/preamps, as well as modify audio components, especially digital gear. You can contact Paul Weitzel at 509-787-5405.

As a point of reference I own the D-225 amp and Pre-1.5 battery powered preamp they built for me, as well as a DAC they modified. I've also got some power cords and speaker cables they made as well, which used to be sold under the FIM, then later CRL brand (not to be confused with the new CRL brand being sold).
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