Good thing he didn't call them Monster Dog, too...
Am trying to work out if the AD is universal
Universal like the Universal MD sense of the word that is with cable swapping. Probably going wrong by thinking about this when way too late at night...
Yes, because each earpiece has its own connector, with 2 wires each, so there are four wires. The Universal Mad Dog has four wires connected to the 4-wire connector, so that you can do "balanced" if you buy a balanced amp (unlike the regular Mad Dog which uses the Fostex 3-wire connector).
The main difference between the wiring on the AD and the UMD (hey, new acronym!) is the cables on the AD are the same sort of Y-cables as on high-end headphones like HiFiMan, Audeze and HD-800. So, on the AD (and those headphones), when you remove the cable, there ain't nothing left - just a connector on the ear piece directly wired to the driver. There is no wire inside the headband, or on the outside of the headband (such as we see on the Mad Dog), and so one less thing to break in the future.
Of course, the advantage of the "one connector" method used on the Mad Dog, is that it is more convenient for the user when listening, and it is stylistically better to have one neat cable, rather than these weird wires coming down either side of your face.
The way I understand it the only difference is the way they are terminated. Once uses an XLR cable which is used with balanced outputs and the 1/4 is used with standard headphone jack outputs. I believe Dan uses the same cabling inside.
These should help:
Also with some balanced amps like my balanced Tube amp you would get more of a voltage swing using the balanced connection and therefore more power is available to the headphones than using the single ended connection. It depends on the design. My SS Juli sound card uses TRS balanced connection to my balanced tube amp using a pair of three pin XLR connectors.. The Juli SS sound card also has higher voltage coming out which further improves the signal to noise ratio.
Haha. Sorry I copied and pasted and didn't notice the font size until it was posted. Is there any way you can just make them available for sale on your website? evalucon doesn't look very buyer friendly.