Yep, WM61A is linear up to ~2khz. Above that its a crap shot. Still a nice thing to experiment with though. And yes, you can pretty much forget about building something that look and sound better than beats, from scratch, AND on a small budget. Much easier and cheaper to modify off the shelf...

To be honest, it might be an easier starting point for you to modify something like a fostex t50rp before building headphones from scratch. It's cheap, it'll be a good experience to learn about headphone construction, damping and frequency response; best of all there are a ton of information...

Quote:   OP clearly asked if those specs = good sounding driver.   Quote:

Those specs are unimportant. What's important is the driver's frequency response and distortion values. You'll probably have to measure those yourself.

That's a terrific FR response. CSD curves are remarkably similar to the 007s as well. Congratulations!   Did he happen to take distortion measurements for the headphones as well?

Overreaction much? I never said raspi i is the best one size fit all solution. It'd be nice if you don't put words in my mouth. And I do agree, it isn't that great for portable usage; it's also hard to mount the darn thing securely in a portable setup. I personally do not need to worry about...

Eh, but that thing has almost half the processing power and a quarter of the ram...No ethernet port either. D:

I don't know what stax uses for their dust screen, but from this post, they seem to slowly hand rub the material (for a staggering 30 hours?!) to add folds into the film.

Would be interested to see distortion and CSD graphs in addition to FR. There might be changes in distortion levels with the thicker diaphragm that is not shown in the FR graph.

Ah, you are using the same material as I am then. I am using a much thicker piece though. 5/8 inch stuff from ebay. 

I like your rubber gasket. :) I couldn't find one appropriate, so I used caulk instead.

It's great to see more people setting up their own measurement rigs. We really need to get our own thread going, somewhere to discuss the effect of various materials on the result, what should we consider as neutral results, and how can we process the raw data to get rid of the coupler's...

Results looking good! We see the importance of getting a good seal when measuring stats cans. :)   What is PUF? Does it stand for polyurenthane? If so, my measurements conforms to yours.

which chip? You'll have to load the right ALSA device driver. I remember that TI's pcm2702 usb dac works right out of the box.   Also, I'd simply go headless on the thing. If you really need to, xtunnel to the thing via ssh.

He should record it with a binaural recording rig, so that the rest of us with DF type headphones can have a better idea of how it sounds like. :)

How's it going? Getting it to work well yet?   (Because they moved my ship date back a week AGAIN!)

The usb fault has been documented, and they have suggested that it is possibly related to a weak power supply. Try swapping it out with something else?

Newark postponed my shipment yet again. So now I'm set to receive it on the 5th. Must've fallen through the cracks, since they are suppose to send me an email if my order was affected by manufacturing delays. Boooo.

Quote:   I have purchased over a hundred c3675s, and I can confirm your sentiment. 

The raw uncompensated measurements are exactly what they are, raw measurements where the microphone's response and other artifacts introduced by the measurement rig are not corrected.

The problem persists. This time appeared while I was browsing the orthodynamic thread.

Does seem like they are targeting android users in the Toronto area.

Another example: http://mobprizes.com/contest/ca-ipad-contest3/index.php?c=ca2 Appeared on the subscription list.

Quote:   OT, but they are on a rolling production schedule. I'm set to receive mine near the 28th.

Newark is farnell's US branch. Get a raspberry pi while you're at it.