chinsettawong

The mod was done by a Thai head-fi member in Thailand. He took out the 507 drivers from their plastic enclosures and wrap them with some kinds of Carbon-Keflar tape. He used hot air from a hot air gun to soften the tape then wrapped the tape aroumd the drivers. Once cool, the tape became stiff and held the drivers in place pretty well. Wachara C.

Happy Birthday!

That's a great idea. I'm in.

Thanks Todd!

RIP Matt.

Nice! Congratulations!

I think it is possible to use some resistors and make a low pass filter for the second driver. The diaphragm on this one can also be much thicker so that the bass can be more aggressive. Wachara C.

I actually am listening to my stacked headphones right now. They sound pretty good. The increase in efficiency and dynamic is easily noticeable. When I played with my 3 stators 2 diaphragms headphones last time, I didn't like them at all. Perhaps I did something wrong last time. I think I'll try it one more time. Hi Tyll! The 4 mm spacing is easily achievable. But can the spacing be shorter? Mine will only be about 2.6 mm. Wachara C.

Hahaha! Seeing this thread makes me want to try stacking 2 pairs of electrostatic headphones together. Maybe I'll try.

Happy Birthday!

Wow! Those look nice. Wachara C.

Congratulations!

Hi Kevin, Could you kindly post the schematic diagram of this new amp? Hardwiring this amp shouldn't be that much work. Wachara C.

So are they 12AX7 for the front tubes? Wachara C.

Very nice!

That looks wonderful! Wow!

Wow!!!

Very nice looking amp, Victor. Congratulations! Wachara C.

I like this idea.

I like it! It should be simple enough to even hard wire. Wachara C.

How about 6BL7? It can take 500V easily. Wachara C.

All the crazy DIYers are alike.

With today's gold price, a piece like that will surely cost a lot more than a T2. You are really crazy. Wachara C.

Wow! That's beautiful.

Thanks a lot for the information.