Normally any self respecting moderator of Headfi would know better then to get involved in a thread bearing "HD600" in its title...
But, the statement that the 590's have a boomy bass is just too intriguing to pass over.
I used to believe the HD600s and Sony MDR-V6 both ranked number one in the entire headphone world when it came to bass extension and deepness. Ain't no other headphone that could possibly touch those two for bass.
Well, that was before I learned how to seperate bass extension from bass deepness during critical listening.
The HD600 has absolutely phenomenal bass extension. It
probably has excellent bass deepness too. I can't tell half the time though because of its excellent bass extension. I confused its bass extension in the past for true bass deepness because I thought "wow, that note is just going on and on and on...it must be going down all the while too". Not only was this audible, but quite visceral as well. Most of its bass extension though takes place in the upper bass/lower midrange region. Likewise with the V6. In a way, my mind was tricked into thinking these two headphones provided deeper bass then any other because of how long those bass notes hung behind.
I finally learned how to listen for deep bass utilizing headphones that actually had little to no visceral bass. This left their upper bass/lower midrange region quite free from any bass extension that could distort bass notes trying to get down there. While the 590s certainly still pack quite a visceral impact, it's also quicker then the HD600s. I believe this quicker transient response in the bass allows it to resolve bass instruments, and also to drop down cleaner in the bass then the HD600s. Again, I don't doubt the HD600s can hit those low notes just as well. It's just that half the time the visceral bass going on at the same time cuts across the ability to delineate bass notes. It's as if it weren't
fast enough, if you catch what I'm trying to say. It takes its sweet time providing a visceral response to every bass note so that when the next note comes along, the previous one is still on its last leg of getting out of the air.
Most of my music utilizes quick and fast bass notes. This is where I found the HD600 annoyingly "slow". When listening to vocals, I had a headphone that tried to stretch every bass note to the point where it started mixing in with the voices. The pace was thrown off.
All IMO of course. And for the record, the system used back then was a Sony DVP-S9000ES, Audiovalve RKV MKII, and a pair of Totem Acoustic Sinews to connect them together. The HD600s had Clou Red cables on them. The 590s had stock cables. I think my system was up to snuff back then so that no excuses could be placed on the system.