It is a common mistake to attribute the sound of a particular amplifier to the output tube. There are so many other factors including the power supply, the driver tubes, the amp topology, the quality/type of the passive components, the amount of power required by the speakers, the other components and cables in the system, the output transformers, and many others; that trying to describe the sound of an amp based only on the output tube requires extensive listening to a wide variety of amps in a wide variety of systems to even begin to form an opinion on a particular tube.
Given the above, I find the 45 amps I've heard to be on the soft and forgiving side of the spectrum. I can see why this would be appealing and in some systems may be the ideal tube.
Remember, it is a system.
Given the above, I find the 45 amps I've heard to be on the soft and forgiving side of the spectrum. I can see why this would be appealing and in some systems may be the ideal tube.
Remember, it is a system.