Iāll recommend the edition XS again 
If you are from Europe which would be my guess have a look at this offer from a German retailer: XDUOO TA-20 DSD-DAC + KHV PREMIUM RĆHREN KOPFHĆRERVERSTĆRKER - HEADPHONE AMP XLR HIGHEND - CLEAR Components - Hifi & Highend Zubehƶr zum TOP Preis!
Hehe quite good timing pokrog! Was just reading your inputs about the XS , sound very interesting at least! ā¦
You havenāt got any advice regarding the DAC + amp ?
Thanks, but the amp is retailed at 340euro from ebay with free shipping from china 
ā¦
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Yeah I know , to much to wish for as always! I could stretch my budget quite far tho! 
ā¦ but i struggle quite hard with finding a headphone tube amp that uses the kind of double Triodes i have on hand :/.
Spend more on the amp if youāre going planar and maybe get a tube preamp. An amp with lots of current is gonna be important and in the budget thereās not many that have lots of current and tubes. DAC wise the smsl 200 is fine, swoop a Douk U2 pro and itāll really sound good. As for amp, something like a singxer sa-1 or maybe a jot 2 would pair nicely but id say the sa-1 would do better with a tube preamp.
Youāve identified planar magnetic as a desire, and rightly youāre looking at hybrid tube amplifiers. However, Iāve long wondered how the Schiit Valhalla 2, with a relatively low output impedance, and is a ātrueā OTL amp that uses your preferred tubes ā could that work well for planar?
Another recommendation for Schitt stuff, although the European supplier seems to be mostly out of stock these days. Noting your preference for wide soundstage Iāll say that many tube amps will widen it considerably. Iāll put Hifiman Arya out as a good candidate. If you are able to order from somewhere with a return policy you at least get a chance to change your mind. Happy hunting mate, let us know what you end up with.
Well i hear what you are saying! You have plenty of good input & experience! ā¦ Iāve been thinking in the same way regarding , a tube pre amp + amp but i find it kinda hard finding any with the tubes Iāve got on hand. Do you maybe know any or have any ideas?
Iāve looked at the Schiit Valhalla 2 but canāt find anywhere to buy it unfortunately 
ā¦ thinking that plus DAC, preamp & amp maybe work better chain like , DAC + Valhalla + amp ?
But i need to find more tube pre amp alternatives ?
Hmm Iām kinda wondering the same thing !.. Iāve planned to buy the Hifiman Edition XS , and theyāre only 18 ohm impedance I think ā¦ And the Valhalla states that it would be no problem to run say a SH HD600 that has 250 - 300ohm so Iām like hmmm? 
Do you have any ideas , alternatives other than the Valhalla 2 , that uses the same tubes maybe ?
Yeah, itās ability to play high impedance cans is zero problem. Its ability to drive very low impedance planars is more dangerous ground. THAT low, I wouldnāt expect much as the Valhallaās output impedance is not far from that. Hopefully some serious tube heads will come in.
Again, for that planar youāre safer with a hybrid tube amp.
Thatās exactly what Iām thinking ! But i do think i could really be nice Iāve you would use it as a " Preamp " in chain with a more powerful amp!
Yeah hoping for some tube enthusiasts !
There is a lot of gear using small 6J1 tubes and such. But by my experience those tubes aināt as much fun to do some rolling with! ā¦
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Incl. import tax?
Hehe thatās another question! Only thing I know is that Iāve successfully dodged the taxes from china several times. By asking them to change labeling of price , product etc ! ā¦
But the link to the German seller , maybe a good choice!
Does anyone know if the TA-20 tube amp , would drive the Hifiman E XS ?
That amp will definitely drive those headphones.
The only amp I have that uses 12au7 is a Bravo Ocean. Fun, dirt cheap ā but youāre smart to aim higher.
I have the Schitt Mjolnir 2, a hybrid that uses double triodes (ecc88) and puts out plenty of power. A separate power amp would be complete overkill although it might stretch your budget a bit. With adapters it would be possible to use the tubes you already own and Iāve had very little trouble getting decent tubes for it. Hifimanās American site are having a huge black Friday sale currently, I just got a set myself and even with duty and shipping Iām paying well below half price.
Just took at look at specs for Edition XS and TA-20. You should be fine as far as power goes, those 'phones have low impedance and high sensitivity, they could run off your mobile.
Thanks for your input. :)ā¦ Iāve been reading a lot about the Schiit products and there are several stuff i like! But so far it seems i canāt get hold of any as Iām living in Sweden , nothing on ebay , and as you said Schiit eu are out of stock.
I really think that a Valhalla 2 could work nicely as preamp in a chain of a SMSL M300 MKll + pre amp + amp . Iāve found the SMSL here in Sweden for 270usdā¦
Havenāt really found any other good alternatives for a tube preamp without braking budget quite hard
As for now this is my thought on chain setup: douk u2 pro + SMSL M300 MKll + xDuoo TA-20 + Hifiman Edition XS 
!
But still a bit worried about the ta-20 regarding itās possibility to run the HEXS to really let them shine !
2watts per channel i think ā¦
My first headphone tube amp was a Little Dot Mk2, it could only do 1 Watt into 32 Ohms. My only cans then were AKG 712, 60 Ohms and 105 sensitivity but that tiny amp had no problem driving them to ear bleeding level. Coming from a speaker setup will make headphone amps appear underpowered but you gotta remember that it only has to push air a very small distance. If youāre really worried, take a look at the Hifiman headphone adapter. It allows you to take speaker cables from a power or integrated into the magic box and output to a headphone. The Edition XS really wonāt need this though.
Nearly all headamps feature a gain switch that can be set to low or high and will boost the signal before volume is applied. This is done to accommodate most headphones as they come in a much greater range of resistances than the 4-8 Ohms usually associated with speakers.
I love my TA30 for my planars but it sounds like itās little higher than your budget. Not sure if it will work with your tubes either but itās a strong 3w of power and has an Integrated dac.