Nope, what i meant is comparable with the DX100 which is 7 hours playback after fully charging.
I was thinking about the Alo Audio Rx MKIII...
I have been considering the SR-71B, but mostly for the ability to balance the left and right channels independently. I have a significant hearing loss in the left ear and option of restoring the left/right balance with a portable amp is an attractive possibility for me. Ray has told me that there were three or four purchasers of the SR-71B who had similar issues, and he had sent them amps without the volume knob, so they could adjust the channels independently. I wonder if anyone reading this forum needs to adjust the right/left balance like I do, and how that is working out in day to day use. Is there a source for aftermarket stacked concentric volume knobs?
If you can get ray to send you an extra knob, i can precision slice it with my wire edm machine.
Or build you something like this.
Your choice of brass, aluminum, titanium, or even exotic woods.
I would need the exact dimensions to do this.
Free, other than the titanium which has high prices these days.
Gold or platinum too, if you are in a silly mood.
It's by Kobiconn Part # 163-191J-E, surprisingly labelled as a "Camera Plug" :-
The plug used for the 71b can be obtained form Ray.