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I’m not buying any new SR-009S unless it’s over $6000. That way I’ll know there is a big improvement over my old ones.

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It's usually much closer to 1V as KG said as he uses 1.7V LEDs and Vbe is closer to 0.7V. If using higher voltage LEDs I would compensate with resistance accordingly.

Voltage cross the resistor is LED voltage minus base-emitter voltage - roughly 1.9V – 0.6V = 1.3V. So approximately current through R33/Q17 2.5 mA (RV2 centered) and R50/Q20 4mA. Those values will depend on the individual components.

about 1V

Into the Badlands -- martial arts of the completely unrealistic school, lots of wirework, swordplay, post-post-apocalyptic society, barren and windswept wastelands, a 5 ring Chinese broadsword, Nick Frost, plenty of hot chicks and gruesome violent deaths, what more could a boy want?

They probably will just paint the frame black with gold protective screen and upgrade the ear pads and charge us $2000 more

Backlighting (multiple LEDs) behind just the knob, with the hole in the skirt for output...

What all the smart iMac Pro users will be sporting this year,..