Originally Posted by atomikn00b
Interesting. I considered them in the past but thought they might have been too big to use "half-portably".
To an inexperienced ear, how much of a diminishing return is it from the mad dogs to the he-500s?
Also to the experienced and discerning ear, what are the differences?
My judgement on size was based on looking at pictures only.
Are they smaller or larger than the older Denon lines (D2k, D5k, D7k)?
Finally, how do they compare to the HE-500s little brother (HE-400)?
The Mad Dog sits right up next to flagships in my opinion, for a closed headphone. Very few highends are closed, but of the closed highends, the Mad Dog is quite close. Too close for comfort, considering the price. It's why the Mad Dog is so good. The Mad Dog I spent time with has Stax Pads, super comfort, the sound stage was great, and the isolation was superb. It sounded like a closed LCD2 basically, a dark, very warm, excellent sound. Highly recommended. Competed with my D5K completely, but as an ortho, handled speed better and had better controlled bass. Differences between the Mad Dog and HE500 I will say are basically just flavors. Little things are obvious, like sound stage, comfort, brightness of treble, etc. The HE500 is a little more natural sounding, a touch brighter, heavier in weight, with a bigger sound stage, a bit more airy. But the Mad Dog is so close that for it's cost, I would generally recommend the Mad Dog since it's considerably cheaper, and way easier to power properly.
They are about the same size as the Denons. They're not small. But the build of the Fostex is durable. It's a storm trooper helmet and has a detachable cable.
The HE-400 and the Mad Dog are very similar. Let's just call them so similar that one is open and one is closed.
Seriously Mad Dogs with Stax Pads are one of the best closed headphones there is.
But like all things, it's all about preference to flavor.