If you have high impedance output toobz, then there will be better mating with the high impedance Senns.
Otherwise, a low output impedance SS amp with current will drive anything optimally.
64 ohms is a good spot, because it neither ultra low impedance nor ultra high, and should do well with most amps. However, the standing rule is lower impedance driving higher impedance whenever possible.
Otherwise, a low output impedance SS amp with current will drive anything optimally.
64 ohms is a good spot, because it neither ultra low impedance nor ultra high, and should do well with most amps. However, the standing rule is lower impedance driving higher impedance whenever possible.