Originally Posted by tdockweiler
Last night I reversed the bass mod for testing. Just watched one movie and listened to music today for a few hours.
I almost immediately missed the modded version within the first hour.
My main reaction was like "Hey, where did my soundstage depth go?" It's like there was SLIGHTLY more width, but everything seemed more shoved in my face and more in my head/close up. It was almost annoying. Of course this depends on the tracks. Even the "Buena Vista Social Club" cd (which is good for testing) sounded a bit "off". The modded version just seems more accurate to the recording. Maybe the stock version seems a bit more colored. You could either prefer stock or modded. Some might even find a way to get the sound halfway between the two. I think for that you could try replacing the outer grill foam with another material. I used a thin piece of gauze type material and it sounded really good. Could be hearing things though!
With the outer grill foam removed the sound is too harsh for my ears, especially with some ear piercing female vocals (in Jpop)
One idea is to take measurements with first the grill installed, but without foam and then with the grill completely off.
I once tried the modded version with no outer grill and it was pretty awful...
BTW when you compare the HD-650 (which is actually fairly neutral to me..my pair anyway) to the modded Q701, the Q701 gets the soundstage depth right. It sounds almost exactly how it does on the HD-650. On the stock Q701 it's a bit different..
Of course you need really specific tracks, because some of them have almost no sense of depth IN the recording.
Recording depth seems so hard to judge on some headphones. Especially with no good DAC or weak amping. I remember when I had my first headphone and CD player, it just didn't exist and everything came from one same spot it seemed like.
That's one difference I hear between the ODAC and Modi. The Modi seemed to have better depth. How the heck is that even possible?!
EDIT: Going to force myself to use the Q701 stock for testing for a week or two.I don't use my headphones as much now though and right now it's split between the HD-650 and Q701. I still think my DJ100 with M50 pads sounds just a good though
Like you, I recently reversed the mod. Like you, it felt like something was missing. I thought I'd try it for a few days, but went back to modding almost immediately. One thing I've done is replace the thin foam rings that sit on top of the drivers with wool felt (compressed in a vice, since it's quite thick). I did that to cut down on some harshness (to my ears) with certain songs. I was looking for some balance without sacrificing detail. Wool felt FTW.
On the bass port, I tried it fully open, but as before, it was just a little too loose for me. Stuck all kinds of materials over the ports (foams, felts, whatever), but ended up with painter's tape over the ports, then took a pin and poked a hole where the port is. I'm not sure how different that is from fully open, but I've been enjoying them in this configuration for a couple weeks now. I still get plenty of rumble in things like Amon Tobin's Bricolage, soundstage and imaging remain excellent (there are some tom-tom hits in a couple passages of Steely Dan's "The Caves of Altamira" that bounce around the "stage" in quick succession, and the Qs crush my other cans in that department). They're not as meaty as my HE-500s, but that's a given. It's fun to switch between cans using albums with which both excel. MAN I'd love to marry those two cans into my personal Uber Cans. Maybe the HE-560s will get closer.
Happy modding, happy listening