willemj
...With two choices of output tube, each capable of being operated in Triode (green LED) or Ultralinear (red LED) mode, and with three output-transformer taps available, the DiaLogue Premium offers 12 different ways of being used, and is therefore 12 different amplifiers in one chassis.
Read more at https://www.stereophile.com/content/primaluna-dialogue-premium-power-amplifier-measurements#OGDKVfi7...
Just look at these Stereophile measurements: https://www.stereophile.com/content/primaluna-dialogue-premium-power-amplifier-measurements it has a pretty bad load dependent frequency response. You might as well buy yourself an equalizer. Moreover, its output of little over 20 watts is not enough to drive the Harbeths. Just do yourself a favour and do what Harbeth’s designer Alan Shaw suggests and get a beefy solid state amplifier. Even very good ones will cost less and will sound far better.If you read the Stereophile article you’ll see the following, the 25 wpc is in low power triode mode, see below. The amp met the 42wpc spec. As far as quality goes, reliability and quality control in the primaluna line are halmarks. These are top shelf amps that will last a lifetime.
...With two choices of output tube, each capable of being operated in Triode (green LED) or Ultralinear (red LED) mode, and with three output-transformer taps available, the DiaLogue Premium offers 12 different ways of being used, and is therefore 12 different amplifiers in one chassis.
Read more at https://www.stereophile.com/content/primaluna-dialogue-premium-power-amplifier-measurements#OGDKVfi7...