The new values should help it stay off at least long enough to turn it off.
Or it’s been seriously expensive to buy genuinely good objective performance from a company like Violectric.
In this case, with as little as $25 worth of parts, you can have a headphone amp that rivals the headphone output of the Benchmark DAC1 Pre in blind listening tests.
START HERE: There a lot of documentation on the O2. LESS WORRY: Unlike 99% of headphone amps, the O2’s performance has been fully documented on professional equipment under real world conditions.
Once the holes are “tapped” there shouldn’t be a problem.
GET YOUR OWN O2: The biggest question most have is “how do I get one?
THE RESOURCES: Pictured to the right (click for larger) is the final PCB version.
Here the resources for the O2 project: POWER CYCLING & NOVEMBER DESIGN CHANGE: I revised R25 from 2.7M ohms down to 1.5M ohms and R9 from 40K down to 33K.
If someone wants to roll the dice and make a few hundred O2 amps things get even better.