I have some nice, short, heavy-duty cables linking the hardware. What I'm using with it: 1992 Sony DT66 Discman, (and here's the part where the audiophile "simpler is better" purists will cringe) feeding a BBE Audio Restoration System home processor, feeding the Little Headroom amp, with either Grado SR80 or Sennheiser HD475 headphones. I'd never heard one, but had always been curious about it from reading. I'd always wanted one of these Headroom amps, so when I found a used one for $150 or so, I picked this up. Personally the crossfeed processor circuit is worth the price of admission. Every once in a while it falls off and I have to get my welding goggles out. The two(why 2?)power LEDs are so bright and distracting that I covered them with a chunk of modeling clay. I think perhaps the reason that some people don't notice the effect is that it varies depending on the type of music. Listening for a while with the processor then switching it off and to me it sounds like a pair of out of phase speakers. The best way I can describe it is that without the processor it seems like certain elements of the music mix sound like they are pointed straight at the side of your head like they are on either side of you instead of all in front of you on a stage.
![sennheiser crossfeed sennheiser crossfeed](https://hometheaterhifi.com/wp-content/uploads/2017/05/traveling-while-audiophile-fig9.jpg)
With the processor the sound stage is more unified. It's difficult for me to describe how profound the "subtle" difference is. I can understand how some people may find the effect "subtle" but I can't live without it now. I've been using the Little with Grado SR-60's now for close to a year and I have to say that there is no way I would purchase any other brand of headphone amp that did not use the Headroom crossfeed processor circuit.