ISO: Tube headphone amp for Planar headphones


Hello everyone. I recently purchased set of Audeze MM-100 headphones. 

https://www.audeze.com/products/mm-100

At 18 ohms and  98 dB/1mW sensitivity they shouldn't be difficult to drive. I'm currently driving them with a beyerdynamic A20 Headphone Amplifier that I was using with a pair of beyerdynamic DT 770 PRO 250 cans. 

While the new headphones sound okay with the A20, I can't help but feel that the current amp isn't driving the MM-100s to their potential. Granted, the MM-100 are analytical as they're meant to be studio monitors but I'm thinking that perhaps a decent tube amp would warm them up a bit.

So I'm looking for a tube headphone amplifier that will work well with the planars.

Budget is $800-1100. Thanks in advance!

Happy listening.

 
 
128x128musicfan2349

Although not familiar with your specific Audeze headphones, I own the LCD2 and the Audeze LCD3s and my choice would be the Yamamoto HA-2 headphone amp. This little amp is amazing and looks amazing as well. I have owned mine for 10 years with no issues, just beautiful music using 2 WE408A tubes. Try it you will like, love it. Enjoy the music

With my suggestion given above, I would like to add that my main headphone amp is a Dennis Had Inspire headphone amp that I purchased new from Moon Audio and it is marvelous with Shuguang 6SN7 WE Plus replica tubes and a round bottom Brymer rectifier tube but over $2,500.00 and am very satisfied with it especially when the xtra power is needed for the more power hungry cans, WTS the little Yamamoto will never be sold. Enjoy the music

@freediver Thank you for the info regarding OTL designs. I was not aware of that being an issue. Because it's the internet I had to look it up myself and lo and behold you are correct. Please don't take it personally. wink 

My digital front end is Bluesound Node2 into a Border Patrol DAC then into an ARC SP-11 Mk2. To drive the HPA, I have leads coming from the tape out on my SP-11. This allows me to use my headphones for all sources including my California Audio Labs Aria CD. 

The problem I'm seeing with the APPJ PA1502A, Cayin HA-1A and the  Yamamoto HA-2 that @tooblue was recommending is that there are no US dealer/distributors. Not even AMZN and they carry everything. And not that I have anything against "Chi-Fi" but the Cayins I find are 100VAC for Japan.

I also looked into the Auris Euterpe but alas, as it's 4+ years old, there are only close out/used examples available from Serbia. So the search goes on but at the very least the OTL thing is a very valuable lesson. Thanks folks.

Happy listening.

 

 I've owned both the HA-1A & the CS-55A integrated amplifier..Both were SUPERBLY built & in 5 total years of ownership never a single problem or hiccup..
 Bloom Audio carries the HA-1A & offers LIFETIME support,including assistance with Warranty Support should a problem ever arise...
https://www.google.com/aclk?sa=l&ai=DChcSEwiP6vGJsOaJAxVpMdQBHaLlOx0YABASGgJvYQ&ae=2&co=1&ase=5&gclid=Cj0KCQiA6Ou5BhCrARIsAPoTxrC2L7ap_Z5p_STsrwAJ45J5tOLnZlikyc174vRAzXWhVacvjQe2Hw0aAoZJEALw_wcB&sig=AOD64_1jicn1DEJwizhLKkx4BwBh4desIw&ctype=5&q=&ved=2ahUKEwiHr-eJsOaJAxWR48kDHR2sIyoQ9aACKAB6BAgHEBk&adurl=

I'd recommend the Quicksilver Headphone amp, and it should fit nicely in your budget.... Excellent out of the box and even better with some judicious tube rolling.

https://quicksilveraudio.com/products/headphone-amplifier/