[jpelg]

While the Pro series has tiny screws to attach the driver board to the earcup, the HFI-780's seem different:

[size=xx-small](photo from Anythingbutipod.com)[/size]

I'm not seeing regular screws. How do you detach the earcups?

TIA.

 

[jpelg]

Are those some kind of funky screws?

 

[nikongod]

philips screws, precision screwdrivers are a must.

The diode board may not be the worst thing, i blew up an ultrasone driver without it in... I was "burning in" aggressively, but have never blown another driver like this.

 

[jpelg]

Thanks for the response, Ari!

So those are Philips screws after all? Hmmmm...ok.

Wrt the diode board, pictures I've seen indicate it is much more intricate than the two-diode configuration inside the PRO-series cans. My thought is that it is doing some kind of EQ as well. I'd just as soon get rid of it, and tune the cup using a combination of dampening materials.

 

[Currawong]

Speaking of removal, how do you remove the pads on the ED9s? Unlike the Pro series, I can't see them twisting off.

 

[nikongod]

Quote:

Originally Posted by jpelg /img/forum/go_quote.gif Thanks for the response, Ari! So those are Philips screws after all? Hmmmm...ok. Wrt the diode board...

I guess I cant really say, as I have not seen the diode board from a pro-can, but the board in the HFI-780 is pretty simple. It has "pro-DJ" etched on it. It is basically, 2 diodes strapped from signal to ground on each channel. There are no passive EQ parts on the stock cans, although there is probably enough room for a smallish (iron core?) inductor air-wired to the driver to tame off the highs.