The tweeter looks like a jbl.. Might be a custom cabinet? woofer looks JBL too... Look at the VC leads from the cone to the dust cap. We just got these in an estate with a house were moving into soon... What do you think?

I bought the first pair, the $15 ones. they sound great. I had to tape off the back hole on the magnets to cut the bass down. Installed in Koss PRO4aaa's  

Thanks to all who took time to reply with their thoughts, I really appreciate it.   I went ahead and emailed the MiniDSP company to see what they say about my dilemma.   We'll go from there :)

could I use one transformer for stereo? thte schematic makes it look like there are two separate transformers in one (?)

@kramer5150   Yeah, the board doesn't output past 0.9v on the output channels, which is disappointing.   (BTW this is for a car audio setup)   The deck has 4v preouts, which produced a clean, distortion-free signal that got loud when straight to my amp driving the front stage.   ...

I have also been looking for a jack like this. I have a friend who wants me to "recable" his new t50RPs, but I told him that I need to get ahold of a right angle 3.5mm minijack that will fit snugly into the Fostex phones.

@dsavitsk what would the transformers be used for?

this is at least audio related DIY, and could have to do with headphones. :) but this is in fact for a MiniDSP / amp active setup.   The miniDSP is only putting out 1v of audio signal. The amp I paired it up with need more line input voltage, maybe like 4v.     I need to put together a...

Hey can I join the Headfi meet? I got some custom SFI open ortho on ear phones and some modded PRO4AAA KOSS phones I want to bring, along with a small headphone amp. I have a friend that might want to bring his bottlehead crack amp to use with my gear. but he would come to talk about his amp and...

Hi!   I've posted only headphone-related things since I've registered at Head-Fi... Time for a change.   So here's my piano cover of Bohemian Rhapsody on piano. Enjoy!!   http://www.youtube.com/watch?v=_upl7QTo6gY     The audio was recorded using an iPhone 4S and an iPod touch...

I am using some microcell foam from an inkjet printer cartridge + some blu tak on the rear baffle. The SFI drivers I used need dampening to sound decent, IMO.   Wonder if the portapro drivers you used would work in closed back..

  Just finished my PRO4/AAA mod. Those pads you found are awesome!! Sound really good...

r1 = whatever you want to use. It really depends on how loud or how quiet you want it to be attenuated at the input.

I think these are it! just bought a pair. http://www.ebay.com/itm/Replacement-Cushion-Fit-Superlux-HMC660-HMD660-HMC-HMD-660-Headphones-headset-/251068575271?pt=US_Headphones&hash=item3a74da6e27#ht_1323wt_1114

what brand/kind did you get off eBay?

you could send them to me! ;) haha. Personally, I would look for some old, vintage headphones and stick 'em in there. And maybe some new earpads!

You've already completed a good handful of mods available for the Grado SR80i's. Now, I don't own them, but I do know that they are dual-entry headphones, so you would need to purchase a "Y" cable of sorts... the Griffin cable won't work for these.   I also would recommend sticking with the...

Very cool!! I have the older PRO4AAA, and have considered doing a driver transplant myself. The stock earpads (like this one) seem to really mess the sound up..

Could you give more description BigVoy? 

I like the idea, but more than likely the type of connectors are different between the different generations     here's how to swap out the click wheel in a Ipod video http://www.ifixit.com/Guide/Installing-iPod-5th-Generation-Video-Click-Wheel/614/1   heres the 6th gen clickwheel...

Good to see you on here Max!    I'm just glad they went to a good home. One of the best speakers I've ever listened to.

I'm one for unusual, vintage, or creative builds.  One design that's been on my mind for a while is headphones made from popsicle sticks! So I did it...     The drivers are from the T50RP -- I would call 'em "Thundersticks" if I'm allowed to. :)     Pictures of the build...

Well, the cable you have connecting the speakers should have three wires to connect, if you are connecting from a portable device.   two for the left and right "positive", respectively   and one for both "negative" connections on the speakers.   Usually there are two wires inside a...

My guess is that pins 8-14 are all connected together (looks like it) for ground.    if you use LINE OUT 1 and 2 TIP, that would go to the respective RCA left and right signal wires (inner core wire of RCA cable). Pin 10 would probably connect to both shield/grounds of the RCA cable break-out.

First of all, plug the headphones into a different source. That way, you can narrow down the root issue.   If it's the headphones..   It would be helpful to have a picture of the wiring inside the left headphone