Aha, very nice, but not exactly portable... Anyone have any input on the questions I posted? :D So far the PCB is looking pretty good. Hopefully I can get to testing an amplifier configuration soon.

That's an interesting find. The main problem is the codec it uses--given that it doesn't list anything like AptX or AAC, it almost certainly uses the standard Sub-Band-Coding codec, which is the main problem with Bluetooth audio products. Also, I shudder to think of the amp that lies inside T_T...

Bump, if I can get any feedback! Also, is 11~12 hours of listening time enough?

Hi Everyone,   I'm currently working on putting together a module that would allow you to stream audio over Bluetooth to any set of headphones from 32 to 600 ohms impedance. I couldn't find anything that was relatively cheap, with good audio quality, that worked over a standard Bluetooth...

Doesn't get much better than this. Reaction to my unmodified (soon to change) Fostex T50Rps: "I don't even hear life this way. Way to go, now you've ruined life for me."

You might want to take a look at the Fostex T50RPs (along with the accompanying thread here on Head-Fi). I can't say from personal experience yet--mine are still one their way from Utah--but with some relatively cheap mods they're supposed to be pretty fantastic.   T50RP Mods...

Hi guys, I was just wondering if anyone has experience using Beyerdynamic DT990 pads for these? It's down to the Shure 840 pads, the pleather Beyer pads, and the velour Beyer pads. What would you guys recommend? They're all within about ten dollars of each other, price isn't really an issue...

Wow, this is incredible! Thank you so much for keeping you process open and contributing such a wealth of data to the modding community! I just bought my set of T50rps, and I'm excited to get cracking on them. Although I realize that FR charts aren't everything, I'm really impressed by how close...

Quote:   Lol, will do--I wish I had the testing equipment to do some real experimentation on this! :)

Quote:     Yes, exactly, but you can't hear sound leaking out of the cups since it's leaking out and getting absorbed by the room. since headphones are designed for personal listening, very little of the sound is going to reflect and get back into your ears.   Quote:   That...

Quote:     But your brain doesn't know what's leaking out of the cups unless it's reflected back, and unless you're wearing grados and sitting inside a narrow hallway, you're not going to be getting much of anything making it back to your ears to give you SS cues. Like I said, if the...

Quote: Aww, well, we knew you'd be back ;) Yah, that's pretty much the case. Closed cans will really only effect the back pressure on the driver and the amount of reflection. The key is to get your headphones to reproduce the recording exactly how it was mastered (hence all the damping...

Quote:     Sound escaping from the cups completely is equivalent to perfect damping in the cups. Now if you mean sound getting into the cups, giving you sound cues from outside, that obviously comes with the tradeoff of, well, being able to hear those sounds, i.e. poor isolation.  ...

This is awesome! I was wondering why no one was covering the plasticine with Paxmate; I was going to give that a go on top of the RP1 mods when I got my pair. Glad to hear it works! Awed, I am, mrspeakers, you've done something truly fine here. :D

Have you taken a look at the Fostex T50RP thread? Those are going for $75 dollars, and are apparently excellent quality if you're cool with modding them (that might take the cost up a little, though). When modded, they've gotten favorable comparisons to HD650s, and even LCD-2s. Just a thought :)