Up for sale is a JDS Labs Atom Amp. This is the original Atom Amp. There are some scratches on the top of the amp. The inside of the volume knob that connects to the metal shaft is broken. It's currently held together with electrical tape. It still works but is a bit loose. I would...

Never thought to factor in the included 4.4 balanced cable in the overall cost. Even though it probably doesn’t cause Sennheiser that much to produce, it still a min $50 value in my book. Considering the 4 pin XLR CH 650 S retails for $240.

I don’t find the 660s fatiguing at all. But that’s coming from someone that didn’t find the HD800 fatiguing either for most music. I listen to music at relatively low volumes so that’s maybe why.

Someone on this thread had both of them and noticed no different in sound quality.

I picked one of these up as well. Do you find 4.4 connector a tight fit? Need to apply a little more force than I would like to get it to click in. Wish it was shorter and more flexible as well. I also got a 4.4 mm to 3.5 mm adapter and it's also a tight fit. Even more so. Probably going...

After 9 years of enjoying my headphone system, decided to add some new gear this year. My Headphone setup is also connected to my personal/work from home computer which I recently built last Christmas. So space is at a premium. New additions are: Sennheiser HD660s Questyle CMA400i Balanced...

Cables arrived today. Build quality is excellent. I was a bit worried the cable may be too stiff but that's not the case. Microphonics is not any worse then the cables that came with my HD 660s or Denon AH-D600. The AH-D600 cable has fabric sleeving as well.

My balanced cables arrived for the HD800. Can't really notice much difference between xlr balanced vs SE output base on a few songs tested with. They both sounded good. The only thing I can say for sure is the power output is higher. The volume knob is now at 9 instead of 10 o'clock at...

Purchased these a couple weeks ago to compliment my HD 800. Wanted something warmer and less analytical. The HD 800 can be unforgiving on certain recordings. I had the HD 650 9 years ago but sold it after purchasing the HD 800. I found the HD 650 too dark for my liking. This doesn't seem to...

Noise is not present when connected to my laptop using USB. I'm ok with using optical for now.

I noticed noise when using USB to connect computer to DAC. Noise disappeared when connected using optical. Atom sounds better now. Noise is not present on the Violectric HPA 200 and the Questyle DAC's built in HPA though. They must have some built in noise filtering the Atom doesn't. It's...

Good to know. I definitely don't need the extra power. I listen to music between 9 and 10 o'clock 90% of the time. Max is 11 o'clock. This is on the lowest gain setting on all 3 of my amps with the HD800. My other HPs even lower.

I have a Sennheiser HD 569 closed back over ear headphone for sale. The headphone is in like new condition with only 6 hours of use. I like the sound but found the ear cups a little too small for me. Original box and cables included. Will ship to Canada and USA only. Free shipping included...

I wasn't willing to spend almost double for the CMA Twelve. Glad you got the master at a discount.

Nice pickup. I was debating whether to get the CMA Twelve instead. The dealer stated it was a noticeable step up in sound quality to the CMA400i. The twelve master must bring the sound up another notches.