

I purposely did not pay attention to which position was which on that switch when I assembled the thing. I equipped mine with a switch to allow going back and forth between the stock 100 uF electrolytic and a 100 uF mylar film capacitor for coupling the amplifier to the load. (I actually don't listen to headphones of any description much these days.) But it is a "FUN" headphone amp especially with my 600 ohm 'phones. I had HD-800's but had to sell them, the treble gave me headache, but when I had them, the Crack was my favorite amp to use them with. I also like the way my HD-600's sound with it. I love the way my 600 ohm Beyer DT 880's sound with this amp.
