Orthodynamic Roundup - Page 26

What are you trying to do with QP85??

Nothing yet.

The awful truth

There's a buzz in the left channel of my maior T50 at a certain frequency and volume. It's unmistakable.

I've investigated inside the driver, and what i've found is that there's a ripple in the membrane. if i push down on it, it makes a light popping sound.

Maybe these spent too much time in a hot attic, it's impossible to really tell what went down.

I think i need some Team Ortho help to decide how to fix it.

What immediately comes to mind is the possibility of taking the membrane out completely, laying it on a flat surface, and gently warming it with a hair dryer or heat gun until it lays flat.

Or maybe sandwiching it between a few layers of paper and running over it with a relatively cool iron.

Any thoughts?

wualta as always you've tossed some great ideas out there. I love the reflex dot idea. By changing the size of the dot one could easily tune the phone to his or her flavor. I feel like I have some new tricks to use once the donuts come home. You're a pioneer my friend.

I was thinking of all those combo names until I decided on the flared port, then the phones pretty much named themselves.

Can you tell I'm fond of Brown? I wanted a family resemblance to the K340, even though they're very distant cousins.

Articulate as always.

I tore the K340 down to look at it while in the process of making the donuts (sounds like a Dunkin Donut commercial), and I think I've got it figured out. Without some serious machinery to mill a new cap/swivel joint the AKG band mechanism may have to go away in favor of a Beyer or other system. I could use the stock one, but why spend so much time making wood cups just to cover a good portion with plastic? I may try this sometime soon. It will take some patience though.

A comment like that coming from one of the coolest Head-Fiers I know is high praise indeed my Scottish Brother! We need to collaborate on a project sometime.

What can I say? You left me speechless. Cool. I may bug you about this sometime soon.

I think that you should try to keep it in the K340 style though. Transplanting them into a Beyer shell would be blasphemy.

Yeah, that's basically how i remember my unmodded T40. I'll have to take the icky floor felt out of it to verify, though.

yeah, same here.

Well, the yucky floor felt is about 3/8" thick, but low density.

I *believe that this would mean that the ball socket will press it against the damping film. I ought to stick a piece of paper behind the felt, close up the cup, and open it again - if the paper gets creased to heck, maybe my theory is true.

I think essentially the same results as you have, maybe not as dramatic. I haven't peeled off the little ducts on the front yet.

And I got outbidded on the Monsoon too...............

This Ortho/Planar thing is going nowhere for me

Or maybe I am just too cheap.............

Yamaha YHD2

I was going crazy trying to think of the name of my old Yamaha headphones I had in the 80s, thanks to this thread I finally found out. Last week I saw a pair of YHD2s on eBay, last night I won them.
I'm still waiting for a confirmation of the shipping price, they are supposed to be un-used, I can't wait to see.
Once I get them and assess the foam and how much it's degraded, I'm going to need some advice on how to restore it.
These probably won't sound as great as I once thought they did, I'm sure my 325is will put them to shame, but those Yamahas were a big part of my life for about 5 years. I recall that the cord began to fray at the jack end so an electronics friend replaced it with a new one from Radio Shack.
Good old Radio Shack, new jack would only give me stereo if it was held part way out of the plug! (The had such great quality control back then) I eventually re-soldered the old plug back on with some shrink wrap but it didn't last that long.
Ah, the good old days when I was satisfied with a Sony Walkman with Dolby B, FM Radio, and a water resistant case! COOL!

YHD2s

Sounds interesting, I'm not sure I want to attempt a whole Franken project (I haven't used a soldering gun in years!) But if I'm lucky I'll be able to get these running nicely and use them on those days where I just dont' feel like IEMs. With all the traffic noise on my walk home I won't be hearing anything subtle at all, I used to use cheap phones that came with an old Kenwood CD-player, they didn't sound very good, but they got the job done!
The only thing I ever hated about the YHD was the extra cord length, I was always dealing with elastics & twist-ties!
Once I get them I'll be re-reading this thread again