I've bought an audio interface, that is: Tascam US-2x2. Now I want to buy some nice studio headphones and I wonder how high I can go with impendance in those headphones to still get a decent signal level.
The manual says:
Headphones output (PHONES) Connector: 6.3mm (1/4") standard stereo jack Maximum output US-2x2: 18 mW + 18 mW or higher (THD+N 0.1% or less, into 32 Ω load)
I heard that impendance of out should be at least 8 times lower than headphones impendance. Does it mean, that I can safely buy headphones with impendance up to 32*8?
I'm about to buy BEYERDYNAMIC DT 770 PRO 250 Ohm. Will my audio interface be able to give it enough power?