TrollDragon
Headphoneus Supremus
I have enjoyed the DT880's with 6DT6A's and 6HM5's but I have since modified the MKIV to run a 6SL7GT, between the Octal and 9 Pin 6N23P / 6DJ8 / 6922's before it, the Octals provide some of the warmest sound.What are the best tube combos for the LD Mk IV and Beyer DT880 (250 Ohms)? I presume a warmer / bassier combo would be best?
If modification is not your idea of fun then the 6HM5's are one of the best sounding tubes in an unmodified MKIV.
This is all with stock 6H30Pi-EH power tubes.
For all tube possibilities, have a look at the Little Dot Tube Rolling Thread. Page 77 for a table of tubes that are usable unmodified or the later posts for the full blown 6AS7 power tubes and C3g/s drivers which it top shelf sound per the users that run them.