eeagle
100+ Head-Fier
I had the same problem with both the cable and the 1/4 adapter. I just bought cables off Amazon for like $19.98 each.
They use the same cables as the Oppo PM-1 and Sennheiser HD700, but also the Sol Republic HD. Something strange, if you search HD700 or Oppo the cable will come up for $49 all the way to $119, but if you search for Sol Republic you get exactly the same cable brand name and all for as low as $11.99, lol.
*edit*
A few options:
https://www.amazon.com/Replacement-Republic-Master-Tracks-Headphone/dp/B00LMAAS0Y/ref=sr_1_43?ie=UTF8&qid=1478776166&sr=8-43&keywords=sol+republic+cable
https://www.amazon.com/Replacement-Republic-Master-Tracks-Headphone/dp/B00PZGT9A6/ref=sr_1_30?ie=UTF8&qid=1478776056&sr=8-30-spons&keywords=sol+republic+cable&psc=1
https://www.amazon.com/Replacement-Upgrade-Republic-Master-Headphone/dp/B01G878JO2/ref=sr_1_17?ie=UTF8&qid=1478776056&sr=8-17&keywords=sol+republic+cable
https://www.amazon.com/Replacement-Republic-Master-Tracks-Headphone/dp/B00YI89ZQ0/ref=sr_1_2?ie=UTF8&qid=1478775968&sr=8-2-spons&keywords=sol+republic+cable&psc=1
https://www.amazon.com/Replacement-Audio-upgrade-Sennheiser-Headphones/dp/B00KBBR8T4/ref=sr_1_1?ie=UTF8&qid=1478776301&sr=8-1&keywords=sennheiser+hd700+cable
https://www.amazon.com/copper-Replacement-upgrade-Sennheiser-Headphone/dp/B012KD6T5Y/ref=sr_1_8?ie=UTF8&qid=1478776301&sr=8-8&keywords=sennheiser+hd700+cable
Of course all this is unnecessary if the new Audioquest cable kicks ass and I'll definitely be getting several if that's the case
Curious if you have tried any of the cables linked above?
Several have a 3 piece 2.5mm ear piece plug unlike the 2 piece 2.5mm found on the stock NightHawk cables.
I would love to find an inexpensive balanced cable designed for a Pono player terminated with two 3.5 mm plugs at the player end.