Abyss ? Luxman 550aii ?

I've owned my 1266TC for about a year and it's one of the best headphones that you can buy.  The TC needs a good amount of power to sound its best.  I've talked to Joe Skubinski, ower of JPS Labs, and he told me that the headphones need about 2 W/Ch or more.  You won't hear what the 1266TC is capable of delivering out of the Luxman integrated from its headphone jack.   

One thing that you could try is to get a headphone extension cable with connections to your speaker binding posts.  Since the Luxman has speaker binding posts for 2 sets of speakers, you can connect your speakers and headphones to the speaker outputs.  Doing this should give you more power than using the headphone jack on the front of the amp.  To do this you'll need to make or buy a headphone extension cable to connect to amp speaker binding posts with either spades or bananas.  On the headphone end of the cable, you'll want either a 4 pin female XLR connector or a female 1/4" (6.3mm) jack.  Check what cable you'll get with the TC.  My TC came stock with a 4 pin male XLR and a 1/4" adapter.  If you try this, be careful when switching from speakers to headphones on your speaker selector switch.  Always have the volume control set to the minimum when switching from speaker to headphones or vice versa.

Most everybody seems to agree the 1266 is great, although I did see a review that measured higher than normal levels of distortion and photos of wrinkled drivers.  That's why I asked about buying used.

I still really don't understand why the 550aii headphone jack wouldn't be a decent source as it uses the exact same circuit that goes to the speaker terminals with the addition of one resistor.  I'd like to know what the wattage output is, it does seem powerful.   The P-750u must be superior with its 3 and 4 pin xlr's and designed for lower power output and I would love to own one but I can't justify as my 550aii is no longer in my main system and currenty only used for headphones.  That's an interesting idea to hook the 1266 to the speaker terminals but as you cautioned I would be afraid I would blow the F... out of the 1266 drivers accidentally.

The seller of the used 1266phi TC is seeming a bit slippery so this aquisition may happen later than sooner but thanks for the input.

@jim204 I also have the Luxman p 750u.

You can see it in my system pics.

Enjoy your system!

Thank you @devilboy your system looks great, I hope you are getting a lot of joy from yours I know I do from mine.

$3500 for a pair of Abyss 1266 Phi TC’s seems fishy to me as they typically sell for more than that. I would be careful. All that said they truly are beautiful sounding headphones.