Please Help Weed Them Out

OK, so it's been over a month and this is what transpired. I purchased a Hifi-Man HE1000 Stealth. I realize they're open back, and I was looking for closed back, but WTH the price was great ($1,399) and the many reviews I read were very positive. Well I'm blown away.  l love them! The bass is excellent and the open back gives a very pleasurable open sound. I find myself playing them sometimes when it's not necessary to use headphones. The things I'm hearing on songs that I've never picked up on before is uncanny. So thanks for all who wrote in, I did do a lot of reading and research and I appreciate all who helped out.

I also see the Sundara closed back headphones for $229

Some say they're lacking in bass. Can anyone offer an opinion on them?

Thanks

What about the HE-R9? They're only $109 Are they any good?

I understand your warning, but the Benchmark puts in a separate THX Headphone AMP of very good quality. At least good enough to be called decent. 

OK, so I got a set of AKG K371. I like them a lot, and only $160 from Amazon! I originally got a set of Hihiman HE-R9, but I thought they were too dull sounding and very bulky. These AKG' are great, and I just ordered a set of Dekoni Choice Leather pads to try. I'm actually considering stepping up my game here. What headphones would anyone recommend with a similar sound signature, but way better? By way better I mean in the $1,500 to $2,500 range.

I do need a high isolation rig, as I usually have to play headphones while others are watching TV. Even with closed backs I can still hear the TV at quieter spots on most tracks. It's not an absolute, but preferred.

The Focal Stellias were on my list, but I then read about quality issues and having to send them back to France for repair. I am directing my interests on Audeze. I was wondering which of these (LCD-2C or LCD-XC) has more bass?

OK, I will look into these as well.