hey there, I got an original ALO RX for sale, I just recently purchase the Mk2 and debating whether to hold on to this or the Mk2. In the end i decided to hold on to the Mk2 due to the bass response is slightly better for my Alpha Dog (AD are not bassy headphone, every little help) the unit is in very good condition, I'm 100% sure it can drive Mad Dog (alpha dog are a little bit harder to drive then mad dog) or Sennheiser HD800.
http://www.headfonia.com/alo-rx-mk2/ this is a review of the Mk2 but honestly they have the same sound signature.
the Amp can be switch to high gain, but you have to open up to get to, I can do it before I shipped it out. I use it low gain at home to drive my Alpha just fine!
asking 160. price is PayPal GIFT shipping is up to the buyer. there is a charger included with the unit, I just forgot to take a picture of it.
p.s I had a chance to try the E12, I take Alo over the E12 any day!
Edited by Law87 - 6/1/14 at 12:39pm