I've been listening to the TMA-1 for a few days now, and I agree: if you listen to some acoustic music and start playing around with EQ, it becomes apparent that the treble-boosting slope described in the past few pages makes them sound more normal. Without it, they're nice phones but very specialized for DJing - with it, they're all-round nice phones.
So apologies if this was mentioned earlier in this thread, but how do we think they achieve this severe treble roll-off? It's passive, surely - but is it built in to the drivers, or is it some kind of mod? And if it's a mod, is it mechanical or electrical? For the sake of manufacturing consistency, I would assume electrical... a passive low-pass filter or something?
I haven't opened up the phones to find out, as they're not actually mine but it would be nice to be able to disable it The physical design and build of the phones is too nice to limit them to DJ use!
Had a go at dismantling them, got the right can open and took a pic. couldn't do the same on the left as the input jack was giving us a bit of Grief and it felt like i was gonna damage something, but from what i could see it seemed to be wired the same as any single input headphone. As you can probably see in the photo that they haven't used much dampening, only really one small ring around the driver and Most of the chamber is taken up by the headband mechanism. I threw in some felt from an old pair of headphone just behind the drivers and the back of the cup to see if it made any difference and I'm liking the change probably keep them in.
Edited by rustykpr - 5/1/12 at 12:46am