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?